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TECHNICAL REPORT ON THE
SAN DIEGO PROPERTY,
DURANGO, MEXICO
For
GOGOLD RESOURCES INC.
Location Zone 13 N
WGS 84
466,000 E; 2,576,600 N
Prepared By
Peter Webster, P.Geo.
Mercator Geological Services and
Ramon Hiram Luna Espinoza P. Geo.
Servicios y Proyectos Mineros de Mexico SA DE CV
Effective Date: February 21, 2011
San Diego Property Technical Report
ii
February 2011
Table of Contents
1.0 Introduction and Terms of Reference ........................................................................ 1
2.0 Reliance on Other Experts ......................................................................................... 2
2.1 General ......................................................................................................................... 2
3.0 Property Description and Location ............................................................................ 3
3.1 General......................................................................................................................... 3
3.2 Summary of Exploration Title Information .............................................................. 3
4.0 Accessibility, Climate and Physiography .................................................................. 7
5.0 History ........................................................................................................................ 9
5.1 Consejo de Recursos Minerales.................................................................................... 9
5.2 Tom Albinson 1984.................................................................................................... 10
5.3 Castle Rock Exploration Corp. 1994-1995 ................................................................ 11
6.0 Geological Setting .................................................................................................... 15
6.1 Regional Geology ..................................................................................................... 15
6.2 Property Geology...................................................................................................... 18
6.3 Structural Geology...................................................................................................... 20
7.0 Deposit Type............................................................................................................. 22
8.0 Mineralization .......................................................................................................... 23
9.0 Exploration ............................................................................................................... 27
9.1 San Diego North ......................................................................................................... 28
9.2 San Diego Centre........................................................................................................ 29
9.3 San Diego East ........................................................................................................... 32
10.0 Drilling ................................................................................................................... 34
11.0 Sampling Method and Approach ........................................................................... 34
11.1 Channel Samples .................................................................................................... 34
11.2 Rock Samples.......................................................................................................... 35
11.3 Production Piles Samples....................................................................................... 35
11.4 Grab Samples .......................................................................................................... 35
12.0 Sample Preparation, Analyses and Security .......................................................... 35
13.0 Data Verification .................................................................................................... 36
13.1 Site Visit ................................................................................................................... 36
13.2 Independent Sampling .............................................................................................. 36
14.0 Adjacent Properties ................................................................................................ 38
15.0 Mineral Processing and Metallurgical Testing ...................................................... 38
16.0 Mineral Resources and Mineral Reserve Estimates .............................................. 38
17.0 Other Relevant Data and Information.................................................................... 38
18.0 Interpretation and Conclusions .............................................................................. 39
19.0 Recommendations .................................................................................................. 40
19.1 Phase 1 Recommendations ....................................................................................... 40
19.2 Phase 2 Recommendations ....................................................................................... 41
Date and Signatures........................................................................................................ 42
20.0 References Cited and Selected References ............................................................ 43
Appendix I ...................................................................................................................... 45
Statements of Qualifications .......................................................................................... 45
Appendix II..................................................................................................................... 50
65 Queen St. • Dartmouth, NS B2Y 1G4 • Ph.: (902) 463-1440 • Fax: (902) 463-1419
E-mail: [email protected] • Web: www.mercatorgeo.com
iii
February 2011
Servicios y Proyectos Mineros de Mexico SA DE CV ................................................. 50
Assay Data...................................................................................................................... 50
Appendix III ................................................................................................................... 51
Author Sample Data ....................................................................................................... 51
Appendix IV ................................................................................................................... 52
Laboratory Sample Preparation and............................................................................... 52
Assay Methods ............................................................................................................... 52
List of Figures
Figure 1: Property Location Map ........................................................................................... 4
Figure 2: Claim Titles and Historic Mines ............................................................................. 5
Figure 3: Claims Location and Property Access Map............................................................ 8
Figure 4: Drill Hole Plan Map, Cerro Agujerado, Castle Rock Exploration 1994............... 12
Figure 5: Cross Section Looking Northeast ......................................................................... 12
Figure 6: Cross Section DDH BCA-004 .............................................................................. 13
Figure 9: Regional Geology Map ......................................................................................... 16
Figure 10: Property Geology Map........................................................................................ 19
Figure 11: Structural Geology Map...................................................................................... 21
Figure 12: Genesis of Epithermal Mineral Deposits (White, 1994)..................................... 23
Figure 13: Location of Open Pit and Underground Epithermal Au-Ag Deposits ................ 26
Figure 14: Cerro Agujerado Gossan Zone............................................................................ 28
Figure 15: A Gossan Zone at San Diego Centre .................................................................. 29
Figure 16: Geology and Sample Locations San Diego Centre............................................. 30
Figure 17: Part of the San Diego East Gossan Zone ............................................................ 32
Figure 18: Geology and Sample Locations San Diego East ............................................ 33
List of Tables
Table 1: Summary of Land Owner Title ................................................................................ 3
Table 2: Results of Government sample mining distinct of Pueblo Nuevo 1979 .................. 9
Table 3: Cerro Agujerado Sample Results, (Albinson, 1984).............................................. 10
Table 4a: Select Open Pit gold and silver mines within the SMO ....................................... 24
Table 4b: Select Underground gold and silver mines within the SMO................................ 25
Table 5: Selected assay results from San Diego Centre ....................................................... 31
Table 6: Selected assay results from San Diego East........................................................... 34
Table 7: Author Samples Cerro Agujerado Gossan Zone .................................................... 37
Table 8: Author Samples San Diego Centre Property.......................................................... 37
Table 9: Phase 1 Estimated Budget ...................................................................................... 40
Table 10: Phase 2 Estimated Budget .................................................................................... 41
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February 2011
Summary
This Technical Report on the geology and mineralization of the San Diego Property was
prepared by Mercator Geological Services Limited ("Mercator") and Servicios y Proyectos
Mineros de Mexico SA DE CV ("SPM") on behalf of GoGold Resources Inc. ("GoGold")
to comply with technical reporting and disclosure requirements set out under National
Instrument 43-101. The property consists of five gold and silver properties consisting of a
number of Mexican mining concession titles covering approximately 24,000 hectares in
Durango, Mexico.
GoGold has signed a binding letter of intent (“LOI”) to acquire all of the issued and
outstanding securities of Mexican Gold Holdings Corporation Incorporated (“MHC”), a
Canadian company, by way of security exchange. MHC and MHC’s wholly owned
Canadian subsidiary, North American Gold Holdings Corporation Incorporated (“NAHC”),
together own 100% of Minera Dorango Dorado S.A. DE C.V., a Mexican company,
(“MDD”). MDD is a party to agreements to earn a 100-per-cent interest in five (5) gold
and silver properties consisting of a number of Mexican mining concession titles (the
“Claims”) covering approximately 24,000 hectares in Durango, Mexico (the “MDD
Agreements”). The property is located in Durango State approximately 110 kilometers
southwestern of the Durango capital; at WGS 84 E 466,000 / N 2,576,600 zone 13 N.
The claims are host to an epithermal gold/silver system that extends for more than 15
kilometres. Widespread gold in quartz veins, breccias and stockworks occurs over the
length of the system. The district has been mined on a small scale historically and has
produced gold reportedly from as far back as the 1700’s. MHC has spent the last two years
assembling the claim area and developing relationships with local officials, geologists,
contractors and inhabitants. Their exploration work over the last two years included
reconnaissance sampling which identified gold and silver in veins and in large disseminated
alteration zones along the entire strike of the system.
This report documents the exploration and mining history of the San Diego property.
Although mining has taken place on the San Diego property since colonial times, much of
this work has been undertaken by small scale artisanal miners called Gambusinos. The
most significant documented historical exploration on the San Diego property was
completed by Castle Rock Exploration Corp. (Castle) on the Cerro Agujerado gossan zone
in 1994 and included geological mapping, sampling, and 1038.9 m of diamond drilling in 9 holes.
The diamond drilling intersected gold and silver mineralization spatially associated with a breccia
intrusive body, and the highest reported gold grades were associated with coarse sphalerite, galena and
chalcopyrite mineralization which replaced the breccia matrix. Highlights of individual drill hole
intersections include 1.91 g/t Au and 126.1 g/t Ag over 9.5 m (BCA-003), 1.83 g/t Au and 21.3 g/t
Ag over 26.6 m (BCA-007), 2.54 g/t Au and 8.3 g/t Ag over 11.9 m (BCA-008), and 2.32 g/t Au and
12.4 g/t Ag over 15.45 m (BCA-009).
Recent exploration work completed on the San Diego property by SPM on behalf of MDD
has outlined three target areas for further investigation on the San Diego property. This
work included geological mapping and sampling of a number of known gossan and quartz
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February 2011
veined zones and focused on three areas identified as the San Diego North, San Diego
Centre and San Diego East. This program is currently ongoing but to date a total of 257
rock samples have been collected by SPM and represent chip samples, grab samples
production ore pile samples and outcrop samples. This work was preliminary in nature and
although chip samples were taken across veins and alteration zones more work is needed to
fully assess the true width, size and grade of the veins and alteration zones sampled during
this program.
The San Diego property is located in the central portion of the Sierra Madre Occidental
(SMO) province. The Sierra Madre is one of the largest volcanic belts in the world, and
extends for over 2,000 km from the U.S. – Mexico border to southern Nayarit State where
it is overlain by the Trans-Mexican Volcanic Belt. The SMO is recognized as an
extremely prospective mineral belt for gold, silver and poly metallic mineral deposits.
The volcanic-related epithermal precious metal deposits of middle Tertiary age occur
throughout the north of the SMO and include low-sulfidation Ag-Au (±Pb-Zn-Cu)
veins, and high-sulfidation Au-(Cu) deposits. Low-sulfidation deposits are mainly
quartz ± calcite veins with chlorite + adularia + sericite alteration. These deposits are
Ag-dominated at the lower levels of the volcanic column, and Au-dominated towards
the top of the sequence.
The authors visited the property in January 2011 and verification sampling has confirmed
that known alteration and mineralization on the property is consistent with low sulfidation
epithermal type gold and silver mineralization. Of the 12 samples taken by the authors 7
returned gold values in excess of 1 g/t. An outcrop sample from the Cerro Agujerado
gossan zone, of strongly altered andesite with yellow to red brown alteration, goethite,
hematite and disseminated pyrite returned 58.64 g/t Au, 161 g/t Ag and 2.29% Pb. A grab
sample from an ore production pile, of quartz breccia with strong alteration, specularite,
and manganese, from the San Diego Centre property returned 3.20 g/t Au, 30 g/t Ag and
1.07% Zn. This sampling is preliminary in nature and more work is needed to fully assess
all alteration and mineralized zones on the San Diego property.
Based on the finding of the report a Phase 1 and Phase 2 exploration program is
proposed. Phase 1 exploration is recommended to include detailed mapping and
sampling of known mineralized zones. In addition, satellite image analysis and
reconnaissance mapping and sampling of newly identified gossan zone, and altered and
mineralized zones is recommended. The Phase 1 estimated budget is $930,000.
Recommended Phase 2 exploration is contingent on successful Phase 1 exploration and is
proposed to include additional detailed mapping and sampling of new zones outlined in
Phase 1. Phase 2 recommendations also include diamond drilling of the Cerro Agujerado
gossan zone, targets at San Diego Centre and new targets outlined from the detailed
mapping and sampling. The estimated Phase2 budget is $1,425,500.
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February 2011
1.0 Introduction and Terms of Reference
This Technical Report on the geology and mineralization of the San Diego Property was
prepared by Mercator Geological Services Limited ("Mercator") and Servicios y Proyectos
Mineros de Mexico SA DE CV ("SPM") on behalf of GoGold Resources Inc. ("GoGold")
to comply with technical reporting and disclosure requirements set out under National
Instrument 43-101. The property consists of five gold and silver properties consisting of a
number of Mexican mining concession titles covering approximately 24,000 hectares in
Durango, Mexico. The terms of reference for this NI43-101 Technical Report were
established through discussions between GoGold and Mercator in January 2011.
(“MDD”). MDD is a party to agreements to earn a 100-per-cent interest in five (5) gold and
silver properties consisting of a number of Mexican mining concession titles (the “Claims”)
covering approximately 24,000 hectares in Durango, Mexico (the “MDD Agreements”).
The property is located in Durango state approximately 110 kilometers southwestern of the
Durango capital; at WGS 84 E 466,000 / N 2,576,600 zone 13 N.
Under the terms of the LOI, GoGold will issue 14 million shares of the Company to the
shareholders of MHC and pay a total of $1,100,000. GoGold also agreed to make a nonrefundable payment of $115,000 to MHC for entering into a confidentiality and standstill
agreement.
This report documents the exploration and mining history of the San Diego property and
although mining has taken place on the San Diego property since colonial times, much of
this work has been undertaken by small scale artisanal miners called Gambusinos. There
are no reports of grade and tonnage extracted by these operations. The most significant
documented historical exploration on the San Diego property was completed by Castle
Rock Exploration Corp. on the Cerro Agujerado gossan zone in 1994.
The information and data used in the preparation of this report was sourced from
government assessment files, publicly accessible academic papers and publicly disclosed
technical information from company websites. The authors have provided citations
throughout the report where this information has been referenced.
The authors of this report are professional geologists (P.Geo.) and prepared this report after
review of past exploration on the property and mineralization viewed during the property
visit. Peter Webster P.Geo is an Independent Qualified Person (IQP) as defined by NI43101 and is responsible for all sections of this report. The author and the company worked
strictly on a fee for service basis and this work was one of many contracts under
management by Mercator.
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February 2011
Ramon Luna P.Geo. is a co-author of this report and President of Servicios y Proyectos
Mineros de Mexico, S.A. de C.V. (SPM) a Mexican company that was contracted to
complete exploration on the property for MDD. Mr. Luna is not independent of MHC,
MDD or GoGold as he is shareholder in MHC and part of his compensation will include
shares of GoGold pursuant to the contemplated transaction. In addition, the company SPM
currently derives the majority of its income from MDD.
Both authors of this report visited the San Diego Property on January 19th, 2011 at which
time mineralization was observed in outcrop at two historic mine sites. Based on the site
visit and the observed historic mine workings and mineralization, the IQP is certain that the
work detailed in this technical report has actually been completed. Mr. Luna supervised all
exploration by SPM for MHC, and this work was complete in manner consistent with
industry standards.
The authors have experience in the geology and mineralization detailed in this report
having worked on surface exploration and underground mining projects within the Sierra
Madre and operating gold mines and mineral deposits within this region of Mexico. These
deposit types display geology and styles of mineralization similar to that which occurs on
the San Diego property.
2.0 Reliance on Other Experts
2.1 General
No other experts were consulted in the preparation of this report.
This report was prepared by Mercator and SPM for GoGold and the information,
conclusions and recommendations contained herein are based upon information available to
Mercator at the time of report preparation. This includes data made available by GoGold,
and from government and public record sources. Information contained in this report is
believed reliable but in part the report is based upon information not within the authors’
control. The authors have no reason, however, to question the quality or validity of data
used in this report. Comments and conclusions presented herein reflect best judgment at the
time of report preparation and are based upon information available at that time.
This report also expresses opinions regarding exploration and development potential for the
project, and recommendations for further analysis. These opinions and recommendations
are intended to serve as guidance for future development of the property, but should not be
construed as a guarantee of success. The authors are not Qualified Persons with respect to
comment on validity of surface rights titles and other issues of land ownership in the state
of Durango, Mexico.
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February 2011
3.0 Property Description and Location
3.1 General
The San Diego property is located in Durango State, Mexico and is located approximately
110 km southwest of the capital city Durango and is located at 466,000E / 2,576,600N
WGS84 Zone 13 N (Figure 1).
3.2 Summary of Exploration Title Information
The San Diego property is located in the Pueblo Nuevo mining district, and some
mineralized zones have been mined by small scale mining (Gambusinos). The property
consists of a number of Mexican mining concession Titles covering a total of 24,213.12
hectares in Durango State, Mexico. Exploration land owner Titles are permitted by the
Mexican government. Table 1 summarizes the 16 land owner Titles negotiated by MHC
(Figure 2). Property boundaries are established by survey measurements taken relative to a
concrete monument erected near the center of the Title property.
Table 1: Summary of Land Owner Title
Title
Title Name
Hectares Expiry Date
222633
Segunda Ampleacion la
1,066.60
Garibaya
02/08/2054
213491
La Garibaya
75
28/04/2051
222045
Ampliación la Garibaya
136.3895
28/04/2054
222046
Ampliación de la
4.2081
Garibaya Fracción
29/04/2054
225570
Las Europas
16,742.03
21/09/2055
236626
La Planta
4,570.61
29/07/2060
236627
La Planta Fracción
6.7865
29/07/2060
218833
La Chinacatera 1
118.6364
20/01/2059
218835
La Chinacatera1 fracción
6.7508
2
20/01/2059
227827
La Chinacatera 1
113.7237
21/08/2056
218834
La Chinacatera 1 fracción
95.1784
1
20/01/2059
236212
Real de Guadalupe
85.208
24/05/2060
236313
Real de Guadalupe
96
24/05/2060
227991
Hacienda Real
96
25/09/2056
Not finalized
25/34243
San Felipe II
500
Not finalized
25/34255
San Felipe III
500
Total
24,213.1214
-500,000 mE
0 mE
500,000 mE
1,000,000 mE
1,500,000 mE
2,000,000 mE
2,500,000 mE
CHIHUAHUA
U.S.A.
3,500,000 mN
3,500,000 mN
COAHUILA
DURANGO
BAJA
CALIFORNIA
SONORA
MEXICO
BAJA
CALIFORNIA
SUR
ZACATECAS
COAHUILA
Mazatland
SINALOA
NUEVO LEON
DURANGO
4
(
San Diego Project
Durango
(
NAYARIT
TAMAULIPAS
ZACATECAS
JALISCO
100 Kilometres
2,500,000 mN
2,500,000 mN
SAN LUIS
POTOSI
San Diego Project
3,000,000 mN
3,000,000 mN
Durango
SINALOA
CHIHUAHUA
NAYARIT
AGUASCALIENTES
YUCATAN
GUANAJUATO
QUERETARO
HIDALGO
JALISCO
QUINTANA
ROO
TLAXCALA
COLIMA
2,000,000 mN
CAMPECHE
EDO. DE Mexico City
MEXICO
MORELOS
PUEBLA
2,000,000 mN
Pacific Ocean
MICHOACAN
TABASCO
VERACRUZ
Belize
GUERRERO
OAXACA
0
250
CHIAPAS
500
Figure 1
Guatemala
Kilometres
Property Location Map
Honduras
El Salvador
0 mE
500,000 mE
1,000,000 mE
1,500,000 mE
Date: Feb. 2011
2,000,000 mE
mercator
1,500,00
Projection: UTM Zone 13, Northern Hemisphere (WGS 84)
GEOLOGICAL
SERVICES
5
450000mE
460000mE
470000mE
12
14
2590000mN
13
CORRALITOS
4
1
3
PUEBLO NUEVO
Cerro Agujerado
2
6
Los Fresnos
2580000mN
Animas Perdidas
Las Conchas
La Puerta
Chinacatera
La Gariballa
5
15
16
EL COSOMATE
11
97
La Higuerita
10
La Fierrosa
Cuahutemoc
El Nopal
8
2560000mN
2570000mN
AGUA CALIENTE
Map #
Claim Title
1
222633
2
213491
3
222045
4
222046
5
225570
6
236626
7
236627
8
218833
9
218835
10
227827
11
218834
12
236212
13
236313
14
227991
15
25/34243
16
25/34255
Oro Fino
Cuahutemoc
Los Tajos
Legend
Claim title boundary
Historic mines
Vein showings
Figure 2
0
5
Claims Titles and Historic Mines
San Diego Project
Kilometres
Date: Feb. 2011
mercator
GEOLOGICAL
SERVICES
6
February 2011
(“MDD”). MDD is a party to agreements to earn a 100-per-cent interest in five (5) gold and
silver properties consisting of a number of Mexican mining concession titles (the “Claims”)
covering approximately 24,000 hectares in Durango, Mexico (the “MDD Agreements”).
The terms of the MDD Agreements provide MDD with an option to acquire a 100%
interest in the Claims in exchange for the following:
i.
ii.
iii.
iv.
a first year payment of $140,000;
a total work commitment for all Claims for the first three years of $900,000 and
a total work commitment for years four through eight for all Claims of
$2,650,000;
payment of a minimum advance royalty of $130,000 per annum starting in year
three and ending in year eight. The royalty is based on a payment of up to $4.00
per ounce of gold equivalent NI 43-101 compliant mineable reserves
(“Reserves”). Any advance royalty payments will be applied against the final
royalty payment due. MDD has agreed to pay the current optionors of the
Claims an ongoing royalty of up to $4.00 per ounce of any future increase in
Reserves; and
MDD may exercise the option to acquire the Claims at any time by paying the
royalty or at the end of the eight year period provided all payments above have
been made.
Property mineral tenure does not include land access but this has been negotiated with
the Ejido Pueblo Nuevo, the local native land owners. MDD has all necessary
permissions to complete surface and underground exploration, which includes mapping
and sampling of the San Diego property. In order for MDD to complete advanced
exploration on the property, including diamond drilling, an environmental permit is
required from the Mexican government. MDD has applied for this permit and expects
to have it in place prior to Phase 2 drilling. All historic mining on the property has
been small scale hand mining and the authors are not aware of any environmental
liabilities on the property.
7
February 2011
4.0 Accessibility, Climate and Physiography
The San Diego property is located in Durango State, Mexico and approximately 110 km
southwestern of the capital Durango at 466,000E / 2,576,600N WGS84 Zone 13 N. The
property is accessible by paved and local gravel roads from either of the main centres of
Durango or Mazatlan, where commercial international flights land from the United States
and from Mexico City (Figure 3). From the city of Durango or Mazatlan follow paved
federal highway Number 40 to El Salto, at this point take the highway south to the town of
Corralitos. The road is paved for the first 40 km and is then dirt road for the remaining
distance to Corralitos. From Corralitos follow a dirt road for 20 km to the town of Pueblo
Nuevo. Pueblo Nuevo sits on the northern portion of the study area and within 2 km on the
San Diego property, north zone. Most of the property can be accessed by 4 wheel drive
vehicle along dirt roads. Many of the historic mining properties are accessible by narrow
switch back hiking trails and locals use donkeys to carry supplies to these sites. The
authors accessed the property by helicopter from the Durango airport and could land within
500 m of the San Diego North and Centre showings.
The area of the San Diego property is generally semi-arid and daily temperatures range
from a low of -6°C during the coldest winter night time periods to daytime seasonal highs
temperatures that range from 18°C to 36°C.
The San Diego River flows through the central part of the property area and water levels
vary during the year, increasing during the rainy season of July and September. Smaller
streams that are generally dry during much of the year increase substantially during the
rainy season.
The topography in the area is generally steep and dominated by escarpments and deeply
incised streams valleys that form gorges with a generally NW-SE orientation. Typical
vegetation is dry scrub on steep slopes and coniferous forest and fragmented forest on the
high flatter ground. Elevations above sea level on the property range from 500 m in the
deep river valleys to a high of about 2300 m on the ridge tops.
Pueblo Nuevo is the closest local town but has very few amenities and has an approximate
population of 500 inhabitants and sits at an elevation of about 1500 m (Figure 2). Local
infrastructure in Pueblo Nuevo area is very limited but includes electrical power and
several telephones. Phone and electrical service is not available through most of the
property, which has a limited local population. A high tension power line crosses the
central part of the property but the capacity is not known by the authors.
El Salto is the largest local town in the area with a population of 21,000. The larger centres
of Durango and Mazatlan have all the amenities of a modern city and all supplies necessary
to support an exploration program. Labor type manpower would be available within the
small towns close to the property.
8
U.S.A.
San Diego
Project
1000 km
MEXICO
DURANGO
DURANGO
Durango
SINALOA
40
El Salto
Cebollas
Corralitos
Pueblo Nuevo
San Diego Project
Mazatlan
Mazatlan
15
NYARIT
Pacific Ocean
Figure 3
0
25
50
Claims Location and
Property Access Map
Kilometres
Date: Feb. 2011
mercator
GEOLOGICAL
SERVICES
9
February 2011
5.0 History
Mining in Mexico dates back almost 500 years when the Spaniards arrived in the country
and began mining silver in the 1520’s. During the next 300 years of Spanish rule many
minerals were extracted including silver, gold, copper, lead coal and iron. The SMO is a
prolific and extensive mining district and the San Diego property has a mining history that
dates back to colonial times. There is no recorded mining history, yet many of these
historic mines continue to be worked by the local miners better known as Gambusinos,
some mines on the property date back to the 1700’s. These are pick and shovel operations
and gold is hand panned from the material mined. There is no record of the grade and
amounts extracted by these operations.
The San Diego North property is located in the Pueblo Nuevo mining district and includes
historic mining at the Cerro Agujerado, San Patricio, Animas Perdidas, Candelaria,
Cuauhtémoc, and the Europa mines (Figure 2).
The authors were unable to locate much in the way of recorded historical field work on the
San Diego property. However, limited information was sourced for exploration completed
at the historic Cerro Agujerado mine located on the San Diego North property.
5.1 Consejo de Recursos Minerales
The Consejo de Recursos Minerales (government geological survey) completed sampling
of a number of historic mining areas within the mining district of Pueblo Nuevo (Figure 2).
Although there is little in the way of supporting documentation available for this work, a
table of results from a 1979 report was accessed by the authors (Table 2) (Consejo de
Recursos Minerales, 1993).
Table 2: Results of Government sample mining distinct of Pueblo Nuevo 1979
These sample results were not located or verified by the authors and represent an example
of grades from known mineral showings.
10
February 2011
5.2 Tom Albinson 1984
A geologist by the name of Tom Albinson visited the Cerro Agujerado mine in 1984, and
completed a small sampling program during the site visit to the area. The object of the site
visit was to evaluate a stockwork zone for gold, silver, lead, zinc and copper mineralization
in the area called Cerro Agujerado. The preliminary results of 17 samples taken in the
oxidation and sulfide zone indicated that precious and base metal mineralization was
restricted to the oxidation zone, and that this zone varied in wide from 5 to 10 m (Albinson,
1984). Results of this sampling are outlined in the table below, however, the authors were
unable to find exact locations for these sampling.
Table 3: Cerro Agujerado Sample Results, (Albinson, 1984)
11
February 2011
5.3 Castle Rock Exploration Corp. 1994-1995
The most extensive work on the San Diego property was completed by Castle Rock
Exploration Corp. (Castle) on the Cerro Agujerado gossan zone in 1994 (Figure 2). The
Cerro Agujerado gossan zone was visited by the authors of this report in January 2011 and
verification samples were collected. The results of these samples will be discussed in
Section 13.0 of this report.
The Cerro Agujerado property is located on a topographically prominent hill and the gossan
zone is being mined by local artisanal miners and this work is visible from the number of adits cut
into the side of the hill. The Castle exploration program was supervised by geologist George
Sivertz P.Geo, and was initially directed towards gold and silver mineralization. However, the
scope of the exploration work expanded when extensive alteration and sulfide mineralization was
identified during the initial mapping phase. The exploration program included the construction of a 3
km access road, geological mapping of 1.2 km2 of the property, sampling of road cuts and other
surface rock exposures, and 1038.9 m of diamond drilling in 9 holes (Figure 4).
The diamond drilling intersected gold and silver mineralization that is spatially associated with a
breccia intrusive body, which underlies the Cerro Agujerado zone. The mineralized breccia is open at
depth and to the southeast, where it is reported to be at least 50 m thick (Sivertz, 1995). Highlights of
individual drill hole intersections include 1.91 g/t Au and 126.1 g/t Ag over 9.5 m (BCA-003), 1.83
g/t Au and 21.3 g/t Ag over 26.6 m (BCA-007), 2.54 g/t Au and 8.3 g/t Ag over 11.9 m (BCA-008),
and 2.32 g/t Au and 12.4 g/t Ag over 15.45 m (BCA-009) (Sivertz, 1995) (Figures 5-7) .
The highest reported gold grades were associated with coarse sphalerite, galena and chalcopyrite
mineralization which replaced the breccia matrix. This mineralization was best developed near the base
or footwall of the breccia zone, both in the breccia and in intensely altered and fractured footwall tuff,
which often included narrow breccia intervals. Drill holes BCA-008 and BCA-009 intersected
coarse sphalerite, galena, and chalcopyrite and at depths of 38.25 m to 47.7 m hole BCA-008
intersected and average grade of 3.25 g/t and hole BCA-009 intersected 3.59 g/t between 78.55 m and
86.7 m. In both holes the mineralization occurs at the base of the breccia zone (Sivertz, 1995)
(Figure 5 and 8).
A silicified crystal tuff located below the breccia contact was found to host fractured and quartzpyrite veinlets with chalcopyrite mineralization which was intersected in hole BCA-009 (Figure 5).
The company suggested that copper grades were significance and that samples of fracture and
veinlet hosted chalcopyrite mineralization average approximately 1600 ppm Cu (0.16%), and ranged
between of 845-2590 ppm (Sivertz, 1995). The copper mineralization both on surface and in the
drill holes is different from the phyllic alteration in the breccia and is associated with silicification, and
phyllic and propylitic alteration in intermediate volcanic rocks, which may be indicative of a
"porphyry copper" environment (Sivertz, 1995).
Sivertz noted that surface occurrences of precious and base metal mineralization in breccias
occur along strike from the drilled area. These showings were located on the lower flanks of the
Cerro Agujerado, southeast and east of drill hole BCA-009. The breccia zone in this
12
February 2011
Figure 4: Drill Hole Plan Map, Cerro Agujerado, Castle Rock Exploration 1994
Figure 5: Cross Section Looking Northeast
13
Figure 6: Cross Section DDH BCA-004
February 2011
14
February 2011
location was recommended by Sivertz as an attractive target for further drilling.
Castle completed surface exploration on other areas of the property, especially along the access
road, and this work yielded some anomalous copper values averaging 1088 ppm (0.109% Cu). The
anomalous copper samples occurred in rocks described as a strongly oxidized andesite tuff with
abundant clay and iron oxides, especially jarosite and hematite. Quartz stringers were also
abundant in hematite-rich zones. A series of well mineralized samples were collected from the
lower eastern and southern flanks of the main alteration zone and from the portal of an adit near the
top of the Cerro. These samples reportedly returned gold values from 0.377 g/t to 14.2 g/t, with
30.5 g/t to 146 g/t Ag and up to 0.39% Cu, 0,60% Pb, and 3.05% Zn. The mineralization in these
samples is described as coarse grained sphalerite, chalcopyrite and galena in a pyrite-calcite-quartz
gangue, which replaces the breccia matrix between fragments, and is similar to that described in
drill hole BCA-009. A grab sample of spongy quartz sericite-hemitite boxwork from an adit in the
upper part of the hill returned a gold value of 101.2 g/t Au and 1570 g/t Ag (Sivertz, 1995). Based
on the work by Castle on the Cerro Agujerado property, Sivertz concluded that:
1. Gold and silver mineralization appears to have a strong affinity for the southwest or
footwall portion of the breccia zone.
2. The breccia zone and its associated mineralization are open at depth and to the southwest,
and work by Castle was unable to determine the size and shape of the breccia zone.
3. Based on the breccia fragments, quartz fragments, cherty fragments, sulfide fragments and
plagioclase porphyry, the breccia zone is an intrusive body.
4. The breccia system and its enclosing rocks appear to be a target for bulk tonnage base and
precious metal mineralization.
15
February 2011
5. Gold is associated with chalcopyrite, pyrite, galena and sphalerite mineralization and occurs
with silicification and propylitic and phyllic hydrothermal alteration, and has been identified
in drill holes and in surface outcrops at Cerro Agujerado. The Cerro breccia system
remains an open and attractive target for gold-silver and base metal (Cu-Pb-Zn)
mineralization.
6. Further work, including road construction, geological mapping and prospecting of copper
and precious metal targets, and diamond drilling of the Cerro breccia was also recommended.
Limited additional exploration has reportedly been completed on the Cerro Agujerado
property but the authors were unable to locate the sources for this information. In addition,
during the visit to the Cerro Agujerado property for this report the authors saw that active
artisanal hand mining was underway at the property. The local miners hand panned
mineral concentrates and displayed visible gold to the authors. There is no record of grade
and tonnage of the material extracted from this mining, which is transported daily by
donkey to the local village of Pueblo Nuevo where the rock was crushed and concentrated
by hand panning. The results of this work are not recorded. The authors completed
independent sampling at Cerro Agujerado and this will be discussed in Section 13.0 of this
report.
6.0 Geological Setting
6.1 Regional Geology
The San Diego project is located in the central portion of the Sierra Madre Occidental
(SMO) province (Figure 9). The Sierra Madre is one of the largest volcanic belts in the
world, and extends for over 2,000 km from the U.S. – Mexico border to southern Nayarit
State where it is overlain by the Trans-Mexican Volcanic Belt (Figure 9). The SMO is
recognized as an extremely prospective mineral belt for gold, silver and poly metallic
mineral deposits.
The geology of northwestern of Mexico is defined by the boundary between the Pacific and
North America Plates. The Baja Peninsula of California sits on the Pacific plate and is separated
from mainland Mexico by the displacement along the extensional boundary with the North
America Plate. The western boundary of the North American Plate is an extensional zone bound
to the east by the Sierra Madre Occidental, which is a north-northwest trending plateau of thick
Tertiary volcanic rocks (Figure 9).
The SMO is a silicic volcanic province which has been affected by various phases of Basin and
Range extension and strike-slip deformation since the Early Miocene (Ferrari, et al, 1999). It is
terminated to the south by the Trans-Mexican Volcanic Belt (MVB) where alkaline and calcalkaline volcanism has been active since Late Miocene and is still active today. The MVB is
16
100ºW
110ºW
North America
Plate
Hermosillo
30ºN
Chihuahua
A
S.
U. exico
M
S
Na
M
P
gr erm
an oito Tr
id ias
be sic
lt
za
sA
rc
O
Mazatlan
Durango
San Diego
Property
Pacific
Plate
0
250 km
20ºN
Rivera
Plate
Tepic
Trans
-M
exica
n Volc
Cocos
Plate
anic b
elt
Mexico City
Guadalajara
Map of Mexico showing the present-day plate boundaries and the distribution of Oligocene
to Early Miocene principally silicic volcanic rocks associated with the Sierra Madre Occidental (SMO).
Figure 9
Regional Geology Map
Modified from Bryan et al. (2007).
Date: Feb. 2011
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thought to conceal the tectonic boundary between different tectonostratigraphic terranes
which underwent hundreds of kilometres of strike-slip displacement in Mesozoic to earliest
Tertiary times (Sedlock et al., 1993).
The basin and range province has been subdivided into three sub provinces. Northwest-trending
plateaus, which consist of near or horizontal plains that are thought to represent the original
surface of the Sierra Madre Occidental. The depth canyon province is located towards the
western margin of the SMO and is represented by the vertical erosion caused by rivers. The
exterior margin province is formed along the steep slopes produced by the erosion of the SMO.
These margins are affected by extension but the plateaus have clearly undergone less net
extension than provinces to the east and west.
Cenozoic igneous rocks in northern Mexico, including the SMO, are generally thought to
reflect subduction-related continental arc magmatism that slowly migrated eastward during
the early Tertiary and then retreated westward more rapidly, reaching the western margin of
the continent by the end of the Oligocene (Sedlock et al., 1993). The SMO is a relatively
undisturbed plateau that contains volcanic rocks left from an intensive period during the midTertiary in western Mexico. In general, the SMO contains two vast and largely coextensive calcalkalic igneous sequences. The older of these sequences, which ranges in age from late
Cretaceous to Eocene, is characterized by abundant batholithic as well as volcanic rocks and is
dominantly intermediate in composition and has traditionally been called the Lower Volcanic
Complex (LVC).
The LVC is principally represented by andesites, ignimbrites, lavas, and composite batholiths.
The rocks are best exposed where they have been uncovered by erosion in deep canyons along
the western margin of the SMO. The batholiths are also exposed on the coastal margin plain of
mainland Mexico adjacent to the Gulf of California. The volcanic rocks are generally deformed
by faulting, tilting and usually altered and typically represented within regional propylitic
alteration. Generally only a few hundred metres of the LVC is exposed but in Tayoltita, the
canyon of the Rio Piaxtla, in the state of Sinaloa, the LVC is exposed for more than 2,000 m and
includes volcanic rocks intruded by granodioritic intrusives at the base of the section (Ferrari, et
al, 1999).
The younger sequence is dominated by rhyodacitic to rhyolitic ignimbrites erupted from large
caldera complexes and is estimated that this younger sequence was produced by 350 calderas
distributed throughout the SMO and is referred to as the Upper Volcanic Series (UVS). Others
suggest that a considerable amount of these ignimbrites were extruded through extensional Basin
and Range-related faults, generally accompanied by rhyolitic flows. The SMO volcanics
represent one of the largest ignimbrite-dominated felsic provinces in the world. They extend in
uninterrupted exposures for more than 1,200 km along the plateau-like SMO. Similar exposures
extend from the plateau into surrounding fault-bounded basins and ranges of Mexico to produce
a total aerial distribution of 296,000 km2 (Sedlock et al., 1993) (Figure 9).
The UVS is an extensive sequence of volcanic and volcaniclastic rocks, although shallow
intrusions are present. These rocks form the plateau of the SMO with an average thickness of
1,000 m and generally consist of ignimbrites that are the result of continuous eruptions between
18
February 2011
34 and 27 Ma, although some activity persisted until 23 Ma. This volcanic sequence is
dominated by rhyodacitic to rhyolitic ignimbrites, generally accompanied by rhyolite flows and
domes and small outpourings of mafic lavas. Volcanic rocks of intermediate composition have
been reported at the base of the felsic rocks in several localities throughout the SMO (Ferrari, et
al, 1999).
Metallic mineralization is abundant and widespread throughout northwestern Mexico; its origin
is related to tectono-magmatic events which have been active since Jurassic time. The types
include deposits associated with magmatic (intrusion- and extrusion-related), metamorphic, and
sedimentary rocks. The older mineralizing period is related to the magmatic event that originated
the LVC mostly during the Eocene compressional regime and a later event is related to the UVS
during the Oligocene. Intrusion-related mineralization in the northern SMO corresponds to the
end of the Laramide orogeny and the most common metals of this age are Cu, Mo, W, and PbZn; which resulted from skarn-, greissen-, and porphyry-type systems.
6.2 Property Geology
The San Diego property is located within the SMO and is characterized by deep ravines and
steep topography that is typical of the basin and range provinces described above. The
oldest rocks on the property are Paleozoic basement rocks and these rocks are represented
by a deformed and metamorphosed sequence of continental clastic sediments represented
by sandstone and limestone.
Arenaceous basement rocks occur on the property, are brown-black to gray in color, and
generally appear in layers that vary from 5-30 cm in thickness. These rocks have a
preferred strike direction of north-south and generally dip 40-450 to the east. Within these
units small limestone blocks occur having a dark gray color, fine texture and containing
small veins of calcite and quartz. The thickness of this unit is unknown as the full section is
poorly exposed.
The Paleozoic stratigraphy is unconformably overlain by flows and andesitic breccias of the
LVC. The LVC stratigraphy exhibits hydrothermal alteration, and mineralization and this is
the host rock for mineralization on the San Diego property. The unit is widely distributed
and is typically represented by flows and andesitic breccias that are fine grain with
phenocrysts of plagioclases, and small fragments of dark volcanic rock.
The andesitic units are well exposed due to erosion on the sides of the steep hills that occur
southwestern of Pueblo Nuevo and extensively throughout the property area (Figure 10).
The andesites are typically green to gray rock, fine grained to aphanitic, massive and
locally containing feldspars phenocrysts, calcite and chlorite. The thickness of the unit
typically averages in the order of 600 – 800 m. The andesitic stratigraphy is
unconformably overlain by UVS.
19
460,000 mE
450,000 mE
470,000 mE
480,000 mE
2,590,000 mN
2,590,000 mN
2,580,000 mN
2,580,000 mN
2,570,000 mN
2,570,000 mN
2,560,000 mN
2,560,000 mN
Legend
UVC - Upper Volcanic Complex
LVC - Lower Volcanic Complex
Regional fault system
TmB- UVC Basalt
ToRP-UVC-Rhyolite - Ignimbrite
ToTR-lg-UVC-Tuff - IgnimbriteAndesite
TpaeA-BvA-UVC
Rhyolitic-Andesitic Tuff - Andesite
4
0
8
Kilometres
ToPA-LVC-Andesitic Porphyry
ToBvR-lg-LVC-Volcanic Breccia
2,550,000 mN
ToqMz - Quartz Monzonite
Figure 10
Property Geology Map
TpaeGr-Gd - Granodiorite
ToPDa - Trachytic Porphyry
450,000 mE
460,000 mE
2,550,000 mN
JtMAr-Pz-Slates
470,000 mE
Date: Feb. 2011
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The andesitic unit is Paleocene in age and can be correlated with the type section for this
unit in Tayoltita, Durango. The origin of this unit suggests it is associated with explosive
activity, flows and eruptions of fissures. The unit shows moderate to strong propylitic
alteration and is the host rock of the majority of the mineral deposits in the area and
represents a good target for future exploration.
The UVS is considered to be the biggest ignimbrite unit in the world and is represented by
an alternated sequence of breccias, and rhyolitic and andesitic tuffs that are distributed
extensively throughout the SMO. Three major volcanic events are represented in this unit
and the first is represented by light gray andesitic lithic tuffs that are massive in character,
with lithic fragments, feldspar, quartz and iron oxides that are cut by dikes of andesitic
composition.
The second volcanic event consists of a sequence of andesitic, rhyolitic and sometimes
dacitic tuffs and individual layers range from 0.5 – 1.0 m in thickness. The units include
quartz, feldspar, lithic fragments and iron oxides that are light gray, greenish to reddish in
color. The units are generally flat lying to sub horizontal with dips that vary between 10°
and 25°.
The third and youngest event corresponds to the deposition of massive thick sequences of
ignimbrites and imbricated tuffs of andesitic to rhyolitic composition. These rocks cover a
large area of the property and are observed in high topographic areas and are characterized
by sub-horizontal strata displaying columnar joints.
During the Tertiary (Eocene and Oligocene) the entire stratigraphic sequence was intruded
by intrusive volcanic rocks that included porphyritic andesitic and rhyolitic, dacitic and
quartz monzonite and granodiorite. Intrusive rocks are represented on the property
particularly in the north where quartz monzonite and granodiorite have been mapped
(Figure 11). Rocks are described as green, compact, massive, phenocrysts of feldspar,
quartz eyes and chlorite in an aphanitic matrix. These units have been observed cutting
andesites of LVC and thought to of Eocene age. The intrusive bodies are considered to be
the source of the mineralization and responsible for strong pervasive hydrothermal
alteration including propylitic alteration and silicification.
6.3 Structural Geology
Two main structural events have been recognized on the San Diego property. The oldest
structures show a general NE-SW trend and are possibly related to late intrusives that
affected the Paleocene rocks throughout region. The brittle deformation is related to the
post-Laramide deformation phase and is manifested by NE-SW and NW-SE faults. These
faults show a general dextral lateral component and generated a series of stairs-like basins
and trenches responsible for the horst and graben morphology, which controls the clastic
sedimentation from the Tertiary onward (Ferrari, et al, 2007), (Figure 11).
21
Rodeo half-graben
(32.3-30.6 and ca. 24 Ma)
E
E
go
ran
Du loa
a
Sin
Culiacan
RioChicho-Otinapa graben
(ca. 11 Ma)
Tayolita graben
(< 20 Ma)
E
Durango
Gu
lifo
f
lf o a
i
rn
Ca
W
Southern Sinaloa graben
(ca. 13-10 Ma)
San Diego
Property
Mezquital graben
(< 30 Ma)
Mazatlan
0
W
100
50
Kilometres
Legend
Caldera
(inferred)
Normal fault
Main roads
State boundary
Accomodating zone
with tilting inversion
W
Zone with WSW tilting
Main normal fault
E
Zone with ENE tilting
Figure 11
Structural Geology
Modified from Ferrari et al. (2007).
Date: Feb. 2011
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A second more recent structural event affected much of the UVS and is associated with a
regional structural system with a strike preferred orientation of NW-SE that divides the
SMO into a series of blocks of basin and range type. The faults show a normal near vertical
throw which has caused the structural contact of UVS and LVC rocks. This structural
system is thought be the most important in the region as it is these younger structures where
mineralization seems to occur. Interpretation of the satellite imagery shows a circular
pattern to some structures and it’s believed that these structural features are related to depth
intrusive bodies or volcanic calderas (Ferrari, et al, 2007), (Figure 11).
7.0 Deposit Type
The San Diego property and its associated mineralization is related to a deposit type know
as low to intermediate sulfidation epithermal Au-Ag deposits. This group of gold deposits
is one of the world’s major sources of gold and silver and the largest source in Mexico.
These deposits are distinguished from high sulfidation deposits primarily by the different
sulfide mineralogy. The terms low and high-sulfidation refer to deposits formed in these
respective environments and are based on the sulfidation state of the sulfide assemblage
(Corbett, G.J., 2002) (Figure 12). Low-sulfidation deposits contain pyrite-pyrrhotitearsenopyrite and high Fe sphalerite, in contrast to pyrite-enargite-luzonite-covellite
typifying high-sulfidation deposits. Low sulfidation mineralization typically formed from
hydrothermal fluids influenced by igneous intrusions and occur at relatively low
temperatures (<200°C) and in moderate pressure conditions. Mineralization occurs within
quartz veins with local carbonate, and associated wallrock alteration including illites and
clays (Corbett and Leach, 1998) (Figure 12). Many low sulfidation veins are well banded
and each band represents a separate episode of hydrothermal mineral deposition.
Epithermal deposits form near surface and veins are the common ore host. Deposits form
in extensional tectonic settings with well developed fracture systems and normal faults like
the SMO. Mineralization commonly occurs in volcanic terranes with well differentiated,
sub-aerial pyroclastic rocks and numerous sub-volcanic intrusions. At the San Diego
property gold and silver are the main economic minerals and are associated with pyrite,
iron oxide, quartz and manganese oxides. Hydrothermal alteration is generally pronounced
and is locally represented by deeply weathered, reddish iron oxide staining. Zones of
silicification are represented by stockwork quartz veins and veinlets which are flanked by
illite-sericite and clay alteration. Typical epithermal textures include banded and crustiform
chalcedony and crystalline quartz. The majority of epithermal deposits in Mexico are polyphase and multi-episodic in character, and are the product of several phases or stages of
vein formation, not all of which are associated with silver-gold mineralization.
23
February 2011
Figure 12: Genesis of Epithermal Mineral Deposits (White, 1994)
Low sulfidation mineralization was observed at San Diego North during the field visit by
the authors. The area is characterized by vertical and sub-vertical quartz veins, stockwork
and breccia zones developed within extensive zones of hydrothermal alteration. The
alteration zones observed by the author were in excess of 100 m in width and in other
locations in excess of 500 m in width, although this may not represent true width of the
zones. Quartz veins display banded and colloform textures that represent the multiple
phases of quartz veining. Propylitic alteration is present throughout the district in
association with weakly disseminated pyrite within the andesitic rocks.
8.0 Mineralization
Known mineralization at the San Diego property occurs within a number of distinct
alteration zones. Limited historical exploration has been completed on the claims and
recent work in 2010 by SPM geologists provides some descriptions of mineralization
on the property. During the recent site visit the author was flown by helicopter and
visited two alteration zones on the property and was able to observe a number of other
alteration zones on the property from the air.
Volcanic-related epithermal precious metal deposits of middle Tertiary age occur
throughout the SMO and both low-sulfidation Ag-Au (±Pb-Zn-Cu) veins, and highsulfidation Au-(Cu) type deposits occur. Low sulfidation deposits generally display quartz
± calcite veins with chlorite + adularia + sericite alteration and these deposits are Agdominated at the lower levels of the volcanic column, and Au-dominated towards the top of
the sequence (Wisser, 1966). High sulfidation deposits are less common within the SMO
February 2011
24
but several occurrences have been identified in the last few years and are now important
targets for mining exploration because of their large gold content (e.g. Mulatos and El
Sauzal). Based on the limited exploration completed on the San Diego property to date, all
mineralization is related to low sulfidation deposits near the top of the LVC.
The SMO hosts a number of world class low sulfidation gold and silver deposits of which
the majority are open pit deposits as well as a number of vein hosted underground deposits.
Table 4a and 4b outlines grade and production rates from select low sulfidation open pit
and underground gold and silver mines. The location of these operations in relation to the
San Diego property is outlined in Figure 13.
Table 4a: Select Open Pit gold and silver mines within the SMO
Open Pit Bulk Tonnage Deposits
Ore Deposit
Company
Tonnes
(,000)
Rounded
Ocampo Reserves Proven & Probable
Ocampo Resources Measured & Indicated
Gammon Gold
Gammon Gold
70,000
35,000
0.56
0.20
24.00
9.00
Ocampo Inferred Resources
Gammon Gold
20,000
1.37
81.00
Pinos Altos (open pit) proven
Pinos Altos (open pit) probable
Pinos Altos (underground) probable
Pinos Altos (open pit) indicated
Pinos Altos (underground) indicated
Pinos Altos (open pit) inferred
Agnico Eagle
Agnico Eagle
Agnico Eagle
Agnico Eagle
Agnico Eagle
Agnico Eagle
880
18,000
23,000
7,000
8,500
12,000
1.51
2.05
2.92
0.67
1.11
1.02
26.35
49.30
86.87
8.30
41.78
15.33
Pinos Altos (underground) inferred
Agnico Eagle
4,000
2.42
43.41
Palmarejo proven
Palmarejo probable
Palmarejo measure
Palmarejo indicated
Coeur
Coeur
Coeur
Coeur
4,500
9,000
1,600
3,000
2.80
1.56
1.24
1.56
221.45
133.43
100.46
123.17
Palmarejo inferred
Coeur
12,000
1.56
89.27
Castillo M & I Resources (Including P&P
Reserves)
Argonaut
170,000
0.32
0.00
Castillo - Inferred
Argonaut
43,000
0.42
0.00
•
•
Gold
Grade g/t
Silver
Grade g/t
Note: These figures are NI 43-101 compliant resources and reserves summarized
from company websites and have been publicly disclosed. They are used as
examples only. These projects are not considered adjacent properties and occur at a
distance of over 100 km away from the San Diego property (Figure 13).
The author has not been able to verify this information and mineralization on
these properties is not indicative of mineralization on the San Diego property
that is the subject of this report.
February 2011
25
Table 4b: Select Underground gold and silver mines within the SMO
Underground High Grade Vein Deposits
Ore Deposit
Tonnes
(,000)
Rounded
Gold
Grade g/t
Silver
Grade g/t
4,000
5.04
348
2,000
4.07
306
17,000
3.67
330
Tayoltita Inferred
Company
Primero
Mining
Primero
Mining
Primero
Mining
La Parrilla (Oxides plus Sulphides) proven
First Majestic
300,000
0.00
302
La Parrilla (Oxides plus Sulphides)probable
La Parrilla (Oxides plus Sulphides)
Measured Resources
First Majestic
200
0.00
287
First Majestic
2,000
0.00
264
La Parrilla (Oxides Plus Sulphides)Indicated
Resources
First Majestic
900
0.00
245
La Parrilla Total Inferred
First Majestic
8,000
0.00
169
La Encantada Proven Reserves
La Encantada Probable Reserves
La Encantada Measured Resources
La Encantada Indicated Resources
La Encantada Inferred Resources
First Majestic
First Majestic
First Majestic
First Majestic
700
4,500
450
5,000
0.00
0.00
0.00
0.00
354
186
399
156
First Majestic
2,500
0.00
220
Tayoltita Proven
Tayoltita Probable
•
•
Note: These figures are NI 43-101 compliant resources and reserves summarized
from company websites and have been publicly disclosed. They are used as
examples only. These projects are not considered adjacent properties and occur at a
distance of over 100 km away from the San Diego property (Figure 13).
The author has not been able to verify this information and mineralization on
these properties is not indicative of mineralization on the San Diego property
that is the subject of this report.
26
February 2011
Figure 13: Location of Open Pit and Underground Epithermal Au-Ag Deposits
The San Diego North area has the best documented description of mineralization on the San
Diego property. This target area is underlain by porphyritic andesite, andesite breccias,
dacite, diorite, granodiorite intrusive and tuff. A wide zone of alteration and mineralization
appears to be controlled by NW-SE faulting and rusty red brown alteration defines a zone
of silicification, brecciation and strong oxidation that reaches an estimated width of 100 m.
Previous drilling by Castle on the Cerro Agujerado showing reported that the highest gold
grades were associated with coarse sphalerite, galena and chalcopyrite mineralization
which replaced the breccia matrix. This mineralization was best developed near the base or
footwall of the breccia zone, both in the breccia and in intensely altered and fractured
footwall tuff, which often includes narrow breccia intervals. A grab sample of spongy
quartz sericite-hemitite boxwork from an adit in the upper part of the hill returned a gold
value of 101.2 g/t Au and 1570 g/t Ag (Sivertz, 1995).
Various samples were collected by the authors on the Cerro Agujerado showing and
included strongly altered yellow to reddish brown to black andesite. Mineralization
included chlorite, sericite, goethite and hematite, fine disseminated pyrite and minor
chalcopyrite and galena. A quartz vein sample was collected that showed strong
silicification with minor banding and strong goethite and hematite alteration along the edge
of the vein. A sample of massive galena was collect from an ore pile where local
Gambusinos miners had hand mined the high grade ore. The grab sample consisted of
massive galena with minor silicification and hematite and goethite.
The San Diego Centre area is underlain by andesite, andesitic tuffs and breccias, dacite
27
February 2011
porphyries in the form of dikes, and rhyolitic tuffs. Mineralization and alteration examined
by the authors was restricted to andesitic rocks which were grey blue in color.
Mineralization included fine disseminated specular hematite (specularite) and dark grey to
black manganese staining. A quartz breccia grab sample from an ore pile at the site
displayed a strong grey white vuggy texture with disseminated specularite and a black
mineral thought to be manganese. A second high grade ore sample of semi-massive
specularite was also collected by a local prospector but the authors did not visit that site.
Prospecting and mapping by SPM also outlined a number of veins hosting mineralization
within disseminated alteration zones. Other veins on the property were described as
massive white quartz veins with disseminated sulfides and copper oxides, and irregular
character.
The authors did not examine outcrops on San Diego East property during the site visit but
did observe large zones of yellow to rusty red brown epithermal alteration from a helicopter
during a recent property visit. Recent mapping and sampling by SPM geologists has
provided a limited description of mineralization in the area. In this zone the lithological
units are represented mainly by andesitic and rhyolitic rocks, and these units are locally
affected by dikes of dacitic composition or dacite porphyries. Pyrite is disseminated
throughout the alteration zone, and jarosite and hematite oxides were also observed. Within
this alteration are zones of quartz veins and stockwork quartz veins with disseminated
pyrite.
9.0 Exploration
GoGold has not completed exploration on the San Diego property but based on the
recommendations of this report, GoGold plans to completed mapping, sampling and
diamond drilling on selected targets during 2011.
The most recent reconnaissance level exploration was completed on the property by SPM
on behalf of MDD, during 2010. This work included geological mapping and sampling of
a number of known gossan and quartz veined zones on the San Diego property, and focused
on three areas identified as the San Diego North, San Diego Centre and San Diego East. To
date a total of 257 rock samples have been collected by SPM and represent chip samples,
grab samples, production ore pile samples and outcrop samples. The sampling focused on
large gossan zones and included veins, alteration zones and zones of mineralization. In
addition, basic geological mapping was completed and forms the basis of the target area
descriptions contained in this report. The only mine workings are related to artisanal mining
(Gambusinos) where small tunnels have been cut along high grade gold veins and
mineralized zones. This work was preliminary in nature and although chip samples were
taken across veins and alteration zones, more work is needed to fully assess the true width,
size and grade of the veins and alteration zones sampled during this program.
28
February 2011
9.1 San Diego North
This target area is underlain by porphyritic andesite, andesite breccias, dacite, diorite,
granodiorite intrusive rocks and tuffs of the UVS. A zone of alteration and mineralization
occurs at Cerro Agujerado where a large gossan zone is exposed on a topographic high
(Figure 2). The alteration appears to be controlled by a NW-SE fault system and associated
silicification and strong oxidation, and quartz vienlets define a zone that reaches and
estimated width of 100 m. The central core part of this zone is defined by a quartz breccia
zone that is 4 m wide (Figure 14).
Figure 14: Cerro Agujerado Gossan Zone
Reconnaissance exploration included collection of chip and channel samples on property.
This preliminary work by SPM identified zones of alteration where pyrite mineralization
was present and a number of these had associated quartz veining. These alteration zones
are not continuous but generally align at approximately 340°Az and extend for over 2 km in
length and 500 m in width (Figure 14).
Additional exploration work is planned by GoGold to fully assess the alteration and
mineralization associated outlined by SPM. The author collected samples from the Cerro
Agujerado alteration zone pictured above and results are found in Section 13.0.
29
February 2011
9.2 San Diego Centre
The San Diego Centre target area is underlain by outcrops of andesite, andesitic breccias,
dacite porphyries in the form of dikes, and rhyolitic tuffs. The andesitic rocks vary from
fine to medium grained and have been found to locally exhibit zones of alteration,
silicification, mineralization and brecciation (Figure 15 and 16). Preliminary mapping and
sampling was completed on known vein zones at Cuauhtemoc, Oro Fino, Buena Fe,
Chinacatera, El nopal, La Higuerita, La Fierrosa and others (Figure 2).
Figure 15: A Gossan Zone at San Diego Centre
The Cuauhtemoc vein occurs in a fault zone with a general 60° strike trend and dips
towards the southwest of 70°. A mineralized zone with disseminated pyrite was identified
in andesitic rocks and is 30 m wide and approximately 160 m long (Figure 16).
The Oro Fino vein is a massive white quartz vein with disseminated sulfides and copper
oxides, and appears to be irregular in width varying from 80 cm up to 3.5 m. The vein
outcrops over a distance of approximately 1 km and is hosted by andesites that are cut by
dikes of dacitic composition. The vein trends 20° Az and has a dip of 55° to 65° to the NW
(Figure 2).
30
468,000 mE
470,000 mE
Key Map
2,578,000 mN
2,578,000 mN
San
Diego
Centre
Adri 8
Adri 9
0.52
4.22
La Fierrosa
PNA-92
PNA-93
PNA-94
PNA-95
PNA-96
PNA-97
Chinacatera
Nop-02
Nop-04
Nop-05
Nop-06
Nop-07
PNA-67
1.77
Adri 13
PNA-236
8.87
1.30
2.10
4.72
0.85
3.33
3.85
4.99
9.52
1.75
2.80
6.26
2,576,000 mN
2,576,000 mN
1.01
Adri 14
Cuahutemoc
1.61
PNA-12
0.54
PNA-13
0.76
Chinc-03
2.82
PNA-14
Chinc-05
3.44
0.90
Legend
PNA-234
Au g/t
Rock sample (>0.5 Au g/t)
Rock sample (<0.5 Au g/t)
PNA-34
2.33
5.0
0.53
Faults
Vein showing
PNA-32
0.53
PNA-101
3.20
PNA-114
Veins
0.64
Adri 20
1.61
PNA-35
El Nopal
PNA-31
Silicification
Oxidation
Adri 22
Ryholite
1.87
Dacite
Andesite
Diorite
2,574,000 mN
2,574,000 mN
0
400
Metres
800
See Table 6 in report for assay
results San Diego Centre.
Figure
Figure 16
3
Geology and Rock Samples
Geology
Claims
Location
Map Centre
of Center
Map
San Diego
San Diego Project
468,000 mE
Date:
Date: Feb.
Feb. 2011
2011
470,000 mE
merc
ator
GEOLOGICAL
SERVICES
February 2011
31
Buena Fe Vein has a width of approximately 1 m, and has a strike of 350° Az with a dip of
80° to the NE. The vein can be traced for a distance of 300 m, but intercepts the La
Higuerita vein and appears to be cut off. The La Higuerita vein is hosted by andesite and
the vein outcrops for 200 m, has a width of 80 cm a strike 260° and a dip 65° to the NE
(Figure 2).
The Chinacatera, El Nopal, La Fierrosa veins are hosted by andesites cut by dacite dikes
and the vein size is not well exposed since they occur on the steep slope of the mountains
and are covered by slope deposits (Figure 16). The mineralization in this area appears to be
associated with fissures but more work is needed to fully expose these veins. Old small
scale (Gambusinos) mine workings were evident but mining is not presently underway.
Preliminary mapping and sampling was completed by SPM and the results of this work are
summarized in Figure 16 and Table 5. Complete assay results are available in Appendix II.
More detailed work is required to full define the relationship between these individual
alteration zones.
Table 5: Selected assay results from San Diego Centre
Sample
Name
Adri 8
Adri 9
Adri 13
Adri 14
Adri 20
Adri 22
Nop-02
Nop-04
Nop-05
Nop-06
Nop-07
Chinc-03
Au
g/t
0.52
4.22
1.01
1.61
1.61
1.87
8.87
1.3
2.1
4.72
0.851
2.82
Ag
ppm
1.7
5.4
2.7
0
1.9
0
8.9
2.7
2.9
6.4
3.8
128
Width
(m)
3
2
2
2
2
2
1.9
2
4
2.5
2
2
Sample
Type
channel
channel
channel
channel
channel
channel
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
Chinc-05
PNA-12
PNA-13
PNA-14
PNA-31
PNA-32
PNA-34
PNA-35
PNA-67
PNA-92
PNA-93
PNA-94
0.901
0.535
0.762
3.444
0.639
0.525
2.334
4.998
1.765
3.851
4.988
9.521
20.6
7
26
97
1
1
2
9
5
54
41
40
2
2
2
1
1
3
3
0.55
0.7
1
1
1.5
rock sample
rock sample
rock sample
channel
channel
channel
rock sample
rock sample
rock sample
channel
channel
channel
Geology
andesitic rock with silicification
andesitic breccia with quartz fragments and pyrite
andesitic rock with pyrite and quartz veinlets
andesitic rock with pyrite
andesitic rock with pyrite with silicification and
Fe oxide
andesitic rock with pyrite and silicification
andesitic rock with pyrite and silicification
quartz breccia with pyrite
fault zone
fault zone
fault zone
fault zone
fault zone
fault zone
Sample
Name
PNA-95
PNA-96
PNA-97
PNA-101
Au
g/t
1.749
2.795
6.259
3.209
Ag
ppm
13
17
19
2
Width
(m)
1.3
1
2
0.5
February 2011
32
Sample
Type
channel
channel
channel
rock sample
Geology
dacitic rock with strong silicification
andesitic rock with silicification and Fe oxide
9.3 San Diego East
The San Diego East zone is mainly underlain by andesitic and rhyolitic rocks, and these
units are locally affected by dikes of dacitic or dacite porphyries composition. The
andesites outcrop in the low topographic parts on the area and generally display moderate
to strong oxidation and silicification along a zone that is approximately in 2.5 km length by
750 m in width (Figure 17 and 18).
Figure 17: Part of the San Diego East Gossan Zone
Pyrite is disseminated throughout the alteration zone, and jarosite and hematite oxides have
also been observed. Within this alteration are zones of quartz veins and stockwork quartz
veins with disseminated pyrite. Overlying the andesitic rocks are rhyolitic tuffs of the UVS,
and the alteration, oxidization and silicification observed in the low andesitic rocks appears
to pass into the overlying stratigraphy, and similar mineralization can be found in these
rocks.
33
470,000 mE
472,000 mE
Key Map
San
Diego
East
2,578,000 mN
2,578,000 mN
PNA-236
3.33
PNA-207
0.59
PNA-204
0.78
PNA-199
1.33
2,576,000 mN
2,576,000 mN
Legend
PNA-234
Au g/t Rock sample (>0.5 Au g/t)
Rock sample (<0.5 Au g/t)
Veins
0
Faults
400
800
Metres
Silicification
Oxidation
Ryholite
Dacite
Andesite
Figure
Figure 18
3
Geology and Rock Samples
Geology
Claims
Location
Map ofEast
Center
Map
San Diego
San Diego Project
Diorite
See Table 7 in report for assay
results San Diego East.
470,000 mE
472,000 mE
Date:
Date: Feb.
Feb. 2011
2011
mercator
GEOLOGICAL
SERVICES
February 2011
34
Preliminary mapping and sampling was completed by SPM and the results of this work are
summarized in Figure 18 and Table 6. Complete assay results are available in Appendix II.
More detailed work is required to full define the relationship between these individual
alteration zones and sample results.
Table 6: Selected assay results from San Diego East
Sample
Name
PNA-197
PNA-199
PNA-204
PNA-236
Au
g/t
0.305
1.303
0.782
3.333
Ag
ppm
18
28
16
2
Width
(m)
3
1.5
5
1.5
Sample
Type
rock sample
rock sample
rock sample
rock sample
Geology
andesitic rock with silicification and oxidation
10.0 Drilling
No drilling has been completed by GoGold and no drilling was completed by MHC. Limited
historical drilling was completed on the property and this is reported Section 5.3 of this report.
11.0 Sampling Method and Approach
No sampling has been completed by GoGold however recent sampling was completed by
SPM for MHC and this sampling is discussed in this section.
As part of a reconnaissance exploration program completed by SPM collected 257 samples
from various location of the San Diego property as described in Section 9.0 of this report.
This included the sampling of quartz veined, altered and mineralized zones that the
geologists felt were representative of the nature and style of mineralization of these zones,
and had potential to return anomalous precious and base values. A description of each
sample method follows.
11.1 Channel Samples
Channel samples were collected across the exposed width of quartz veins and alteration
zones. Samples were chipped perpendicular to the exposed veins in an attempt to get a
true width sample. However, due the nature of some surface exposures, it was difficult to
determine if the sample actually represented a true width.
Samples were collected with hammer and chisel along a continuous line of exposed rock.
Fragments or chip samples from a channel of approximately 5 cm or less in depth were
collected in numbered plastic sample bags, and approximately 2 to 3 kg of rock was
collected. Sample intervals are marked on the rock with spray paint along with the sample
number. In addition, the sample number is marked on florescent orange flagging tape.
35
February 2011
11.2 Rock Samples
Rock samples were collected where large areas of exposed outcrop exist. Representative
samples from veins and alteration zones were collected in a circle pattern with an
approximate 5 m radius. Each sample was placed in a numbered sample bag and
approximately 2-3 kg of rock was collected from the exposed outcrop.
11.3 Production Piles Samples
Production pile samples were collected from small piles of ore material, hand mined by the
Gambusinos. Approximately 2 to 3 kg of rock was randomly sampled from active mining
ore, or piles left from previous operations. The purpose of this sampling was to determine
the grade and mineral content of material considered to be ore by local Gambusinos.
11.4 Grab Samples
Fist size grab samples were taken of loose rock from veined, altered and mineralized zones
considered by the geologist to be a zone of potential interest. These samples are not outcrop
but were collected as a reconnaissance evaluation tool to help the geologists to determine if
an area warranted additional exploration work.
All samples were collected in separate plastic bags and labeled with the sample number. All
samples taken by the project geologist to a certificate laboratory and SPM utilized both
ALS Chemex Labs and SGS Labs.
12.0 Sample Preparation, Analyses and Security
All independent samples collected by the authors for this report were taken to SGS
Laboratories in Durango Mexico and were processed by method FAG323 and ICP14.
Samples were crushed and pulverized in a ring and puck pulverizer until 250 g of material
passed through a 75 micron screen. All samples were first assayed by ICP 14 for a multielement analysis. Samples were also assayed by method FAG323 for gold and silver which
has detection limits for Au of 3 g/t and Ag 5 g/t. A 30g sample was assayed by Fire Assay
with an AAS finish for Au and a gravimetric finish for Ag (Appendix IV).
All samples collected by SPM were supervised by author Ramon Luna. These samples were
bagged, tagged and sealed at the sample site and delivered to either SGS labs or ALS Chemex
labs and were in the control of SPM geologists at all times. At no time were SPM employees
involved in sample preparation. SPM utilized sample preparation facilities operated by SGS in
Durango, Mexico and ALS Chemex in Hermosillo, Mexico and these labs are ISO certified and
also tested by an independent body. All assays were performed by the associated lab at assay
facilities located in Canada and the methods used are described in Appendix IV. These
commercial labs utilized internal QA/QC including blanks, standards and duplicates, results
were verified by SPM falling within acceptable levels. The authors are certain that the sample
36
February 2011
preparation, security, analytical procedures and sample results, from the SPM sampling are
representative of the mineralized zones detailed in this technical report.
13.0 Data Verification
13.1 Site Visit
The authors of this report completed a site visit to the San Diego property on January 19th,
2010 in the company of Terry Coughlan, President of GoGold Resources Inc. At that time
mineralized and alteration zone outcrop locations were inspected and sampled at San Diego
North and San Diego Centre. In addition, the authors inspected a small scale underground
mining operation at Cerro Agujerado and sampled vein and wallrock from a mining face.
The authors completed a visual inspection of a number of other alteration zones on the
property by helicopter. The authors did not verify or validate all mineralization on the
property although a co-author of this report Ramon Luna was responsible for all current
exploration and sampling on the property complete for MHC in 2010.
All sampling followed industry standard procedures and the authors relied on assay quality
control procedures utilized by the commercial lab. The independent sampling completed by
the authors did not exactly duplicate sample points previous completed by SPM or other
companies, as the exact location of these samples was not located. However, the authors
feel the sampling completed is representative of previous samples and verifies the
mineralization found within specific mineralized zones sampled on the property. The
authors did not sample all mineralization on the property due to time constraints and
accessible issues.
13.2 Independent Sampling
A total of 12 samples were collected by the IQP at two property locations. Samples
included chip samples across altered and mineralized zones, outcrop samples of veined or
mineralized rock, grab samples of mineralized rock, and production pile ore from the small
scale mining location. Samples were not taken at the exact location of previous sampling
by SPM and it was not the author’s intent to verify the auriferous nature of mineralization
at each site location. This sampling is preliminary in nature and more work is needed to
fully assess all altered and mineralized zones on the San Diego property.
All samples were collected bagged, tagged and dropped at the SGS laboratory in Durango,
Mexico, and all samples were under the control of the IQP at all times. Samples were
analyzed by Fire Assay, Atomic Adsorption and gravimetric methods and over limit values
were recorded for Zn ppm, Pb ppm and Cu ppm and the lab performed quantitative analysis
to record a percentage value as required. SGS labs utilized QA/QC standards as part of the
laboratory procedures. The IQP sample descriptions and summary results are reported in
Table 7 and 8. A complete table of assay values is presented in Appendix III.
February 2011
37
Table 7: Author Samples Cerro Agujerado Gossan Zone
Sample
Number
26576
26577
26578
26579
26580
26581
26582
Description
Cerro Agujerado – Outcrop sample - Strongly
altered andesite with yellow to red brown
alteration, goethite, hematite and disseminated
pyrite
Cerro Agujerado – Outcrop Sample - Quartz
vein in strongly altered andesite, white to light
grey banded quartz vein with pyrite hematite
and goethite alteration and mineralization
Cerro Agujerado – Chip sample - strongly
altered andesite, 20 m chip sample along rib
of small mining tunnel, red brown
silicification and hematite and goethite
alteration
Cerro Agujerado – Chip sample - 3m chip
samples across breccia zone at the working
face of small underground mining operation quartz veining with pyrite hematite and
goethite alteration and mineralization
Cerro Agujerado – Chip sample - Footwall
andesite – 2 m chip sample across footwall
zone of working face of 26579
Cerro Agujerado – Chip sample - Footwall
andesite – 2 m chip sample across footwall
zone of working face of 26579
Cerro Agujerado – Grab sample production
pile - Semi massive galena with minor
silicification and hematite and goethite
Au
g/t
Ag
g/t
Cu
ppm
Pb
ppm
Zn
ppm
58.64
161
834
2.29%
163
0.18
24
208
4560
124
0.09
7
333
1400
136
2.64
76
655
1.46%
258
7.80
26
545
5410
212
1.79
9
312
7090
133
2.30
550
773
73.2%
21
Cu
ppm
Pb
ppm
Table 8: Author Samples San Diego Centre Property
Sample
Number
26583
26584
26585
26586
26587
Description
Grab Sample – ore production pile – quartz
breccia with strongly altered vuggy,
specularite, manganese
Chip sample – 2m chip sample across zone of
grey green andesite near old workings,
resample of SPM chip sample LCH-13,
propylitic alteration with pyrite, chlorite,
epidote, fine disseminate specularite
Same zone as above - Chip sample – 2m chip
sample across zone of grey green andesite
near old workings, resample of SPM chip
sample LCH-13, propylitic alteration with
pyrite, chlorite, epidote, fine disseminate
specularite
Grab sample from area of old pit – andesite
tuff with propylitic alteration , weakly
disseminated specularite
Ore sample – From a local prospector and
apparently from mine workings on the
property - massive silver grey specularite
Au
g/t
Ag
g/t
Zn
ppm
3.20
30
287
3500
1.07%
0.03
<2
41
569
354
0.65
<2
19
83
300
0.015
<2
125
30
89
15
3
122
30
28
38
February 2011
14.0 Adjacent Properties
There are no adjacent properties as defined by NI43-101 that exist in relation to the GoGold
property.
The San Diego project area is part of the historical Pueblo Nuevo mining region but this
district has never had a formal mining operation and there are no records of historic mining
work or NI43-101 compliant reporting of resources or reserves. All existing mine works
are from small scale (Gambusinos) some of which date back to colonial times.
In 1986 the Consejo de Recursos Minerales completed an historic mineral reserve estimate
from the underground development and existing mining works for the Animas Perdidas
mine local near Agua Caliente (Figure 2). This mine is located approximately 10 km south
west of Pueblo Nuevo and 5 km southwest of the property boundary. This historic reserve
estimate outlined 61,341 tons probable 41,667 tons possible ore that graded with 3.54 g/ton
Au and 179 g/ton Ag (Consejo de Recursos Minerales, 1993). The reader should note
that this is a historical mineral reserve and 1) a qualified person has not done sufficient
work to classify the historical estimate as a current mineral reserve estimate; 2) the issuer is
not treating the historical estimate as current mineral reserve estimate as defined in sections
1.2 and 1.3 of NI43-101; and 3) the historical estimate should not be relied upon.
The author has not been able to verify this information and mineralization on this
property is not indicative of mineralization on the San Diego property that is the
subject of this report.
15.0 Mineral Processing and Metallurgical Testing
No mineral processing or metallurgical testing has been completed by GoGold and is
therefore not part of this report.
16.0 Mineral Resources and Mineral Reserve Estimates
No new mineral resource estimates were prepared as part of this report.
17.0 Other Relevant Data and Information
There is no additional information or explanation necessary for this report.
39
February 2011
18.0 Interpretation and Conclusions
The San Diego property and its associated mineralization are related to a deposit type
known as low to intermediate sulfidation epithermal Au-Ag deposits. This type of gold
deposit is one of the world’s major sources of gold and silver and the largest source of gold
and silver deposits in Mexico.
The GoGold property consists of 24,213.12 hectares and the recorded exploration work to
date has outlined prospective mineralization and alteration zones that have returned positive
gold values. Although mining has taken place on the San Diego property since colonial
times, much of this work has been undertaken by small scale artisanal miners called
Gambusinos. Small tunnels have been cut along high grade gold veins and mineralized
zones but the results of this work have not been recorded.
The most significant documented historical exploration on the San Diego property was
completed by Castle on the Cerro Agujerado gossan zone in 1994. The exploration
program by Castle included geological mapping, sampling, and 1038.9 m of diamond
drilling in 9 holes. The diamond drilling intersected gold and silver mineralization spatially
associated with a breccia intrusive body, which underlies the Cerro Agujerado zone. The
mineralized breccia is open to depth and to the southeast, where it is reported to be at least
50 m thick (Sivertz, 1995). The highest reported gold grades were associated with coarse
sphalerite, galena and chalcopyrite mineralization which replaced the breccia matrix. This
mineralization was best developed near the base or footwall of the breccia zone, both in the
breccia and in intensely altered and fractured footwall tuff, which often includes narrow
breccia intervals.
Highlights of individual drill hole intersections include 1.91 g/t Au and 126.1 g/t Ag over 9.5 m
(BCA-003), 1.83 g/t Au and 21.3 g/t Ag over 26.6 m (BCA-007), 2.54 g/t Au and 8.3 g/t Ag over 11.9
m (BCA-008), and 2.32 g/t Au and 12.4 g/t Ag over 15.45 m (BCA-009) (Sivertz, 1995). The
P.Geo. working for Castle, on the Cerro Agujerado gossan project, recommended additional
drilling to fully test the size and extent of the gossan zone.
Recent exploration work completed on the San Diego property by SPM on behalf of MDD
included geological mapping and sampling of a number of known gossan and quartz veined
zones on the San Diego property and focused on three areas identified as the San Diego
North, San Diego Centre and San Diego East. This program is currently ongoing but to date
a total of 257 rock samples have been collected by SPM and represent chip samples, grab
samples production ore pile samples and outcrop samples.
These samples returned
anomalous gold and silver values, which will assist in focusing future exploration on the
property. This work was preliminary in nature and although chip samples were taken
across veins and alteration zones, more work is needed to fully assess the true width, size
and grade of the veins and alteration zones sampled during this program.
Verification sampling by the authors has confirmed that known alteration and
mineralization on the property is consistent with a low sulfidation epithermal type gold and
40
February 2011
silver mineralization, and that more work is warranted to full evaluate the gold and silver
mineralized zones on the property. Of the 12 samples taken by the authors 7 returned gold
values in excess of 1 g/t. An outcrop sample from the Cerro Agujerado gossan zone, of
strongly altered andesite with yellow to red brown alteration, goethite, hematite and
disseminated pyrite returned 58.64 g/t Au, 161 g/t Ag and 2.29% Pb. A grab sample from
an ore production pile, of quartz breccia with strong alteration, specularite, and manganese,
from the San Diego Centre property returned 3.20 g/t Au, 30 g/t Ag and 1.07% Zn. This
sampling is preliminary in nature and more work is needed to fully assess all alteration and
mineralized zones on the San Diego property.
19.0 Recommendations
Based on the findings of this report the following recommendations are presented for
ongoing exploration of the property.
19.1 Phase 1 Recommendations
1. Complete detailed mapping and sampling of the San Diego North property and in
particular the Cerro Agujerado gossan zone.
2. Complete detailed mapping and sampling of veins and alteration zones on the San
Diego Centre property and in particular veins that have been or are presently being
mined by small scale artisanal miners called Gambusinos. Find the location of the
massive specularite sample that was given to the authors by one of these miners.
3. Complete detailed mapping and sampling of the large alteration zone observed by
the authors on the San Diego East property.
4. Complete a satellite image study to define structures, alteration and mineralization
that may be indicative of new target zones with potential to host precious and base
metal mineralization.
5. Complete reconnaissance geological mapping and sampling of all new gossan and
alteration zones on the San Diego property.
Based on the recommendations outlined above the following Phase 1 budget is proposed.
Table 9: Phase 1 Estimated Budget
Task
Personnel (incl. Geologists)
Transportation
Travel
Labour
Camp food
Camp communication
Geological samples
Safety equipment
Earthmoving equipment
Total Phase 1
Estimated cost
$300,000
$56,000
$40,500
$102,000
$24,000
$10,000
$300,000
$7,500
$90,000
$930,000.00
41
February 2011
19.2 Phase 2 Recommendations
The Phase 2 work programs presented below are in part contingent on positive results of
the Phase 1 exploration. Geological mapping of historic mineral occurrences and identified
structures is an important part of the on-going property evaluation. Diamond drilling listed
below is contingent on the identification of suitable targets from the Phase 1 evaluation
process.
1. Completed additional detailed mapping and sampling of mineralized zones defined
by Phase 1 exploration.
2. Complete diamond drilling of targets on the Cerro Agujerado gossan zone to better
define the size of the mineralized zone and in particular the distribution of gold
mineralization.
3. Complete diamond drilling of targets at San Diego Centre and San Diego East that
were defined by the detailed mapping and sampling completed in Phase 1.
4. Complete diamond drilling on new targets identified from Phase 1 exploration.
Table 10: Phase 2 Estimated Budget
Task
Personnel (incl. Geologists)
Transportation
Travel
Camp food
Camp communication
Geological samples
Earthmoving equipment
Diamond drilling (4000 metres)
Total Phase 1
Estimated cost
$200,000
$60,000
$40,500
$25,000
$10,000
$300,000
$90,000
$700,000
$1,425,500.00
February 2011
42
Date and Signatures
The effective date of this report is February 21st, 2011.
“Signed and Sealed by”
________________________
Peter C. Webster, P.Geo.
President
Mercator Geological Services Limited
“Signed”
_______________________________
Ramon Hiram Luna Espinoza P. Geo.
President
Servicios y Proyectos Mineros de Mexico,
S.A. de CV
Date: February 21, 2011
Date: February 21, 2011
43
February 2011
20.0 References Cited and Selected References
Albinson T., 1984, Visita preliminar al prospecto Cerro Agujerado, Pueblo Nuevo Durango
México, reporte Privado
Albinson, T, Norman, D.I., Cole, D., Chomiak, B, 2001, Controls on Formation of LowSulphidation Epithermal Deposits in Mexico: Constraints from Fluid Inclusion and Stable
Isotope Data, In: Albinson, T. and Nelson, C.E., eds., Society of Economic Geology
Special Publication 8, p. 1-32.
Bryan, S.E. 2007. Silicic Large Igneous Provinces. Episodes, vol 30; p. 20-31.
Davila R. T., 1992, evaluación del potencial minero del proyecto Cerro Agujerado en
Pueblo Nuevo Durango México, reporte privado
Corbett, G.J., 2002, Epithermal gold for explorations, AIG Journal – Applied geoscientific
practice and research in Australia Paper 2002-01, February 2002 26p.
Corbett, G.J., and Leach, T.M., 1998, Southwest Pacific rim gold-copper systems: Structure,
alteration and mineralisation: Economic Geology, Special Publication 6, 238 p., Society of
Economic
Consejo de Recursos Minerales, 1993, Monografias Geologico Mineras
Ferrari, L., Pasquarè, G., Venegas-Salgado, S., and Romero-Rios, F., 1999, Geology of the
western Mexican Volcanic Belt and adjacent Sierra Madre Occidental and Jalisco block, in
Delgado-Granados, H., Aguirre-Díaz, G., and Stock, J. M., eds., Cenozoic Tectonics and
Volcanism of Mexico: Boulder, Colorado, Geological Society of America Special Paper
334.
Ferrari, l., Valencia-Moreno, M. and Bryan, S. 2007. Magmatism and tectonics of
the Sierra Madre Occidental and its relation with the evolution of the western margin of
North America. In Geology of Mexico; ed: S.A. Alaniz-Alvarez and Angel F. NietoSamaniego. Geological Society of America Special Paper 422; p. 1-40.
Manriquez R., 2005, Characteristics of the major epithermal gold deposits in the northern
Sierra Madre Occidental, Mexico, Thesis Presented to the Faculty of the Graduate School
of The University of Texas at El Paso in Partial Fulfillment of the Requirements for the
Degree of Master of Science Department of Geological Sciences The University Of Texas
at El Paso.
Sedlock, R. L., Ortega-Gutierrez, F., and Speed, R. C., 1993, Tectonostratigraphic Terranes
and Tectonic Evolution of Mexico, Geological Society of America Special Paper 278, 142p
Sivertz G., 1995, Castle Rock Exploration Corp, 1995, Phase I exploration and Drilling
program Cerro Agujerado Project, Pueblo Nuevo Durango Mexico
44
February 2011
White, N C and Hedenquist,J W, 1994, Epithermal environments and styles of
mineralization; variations and their causes, and guidelines for exploration, In: Epithermal
gold mineralization of the Circum-Pacific; geology, geochemistry, origin and exploration;
II.Siddeley-G (editor), Journal of Geochemical Exploration. 36; 1-3, Pages 445-474. 1990.
Wisser, E., 1966, The epithermal precious-metal province of northwest Mexico: Nevada
Bureau of Mines Geological Report, no. 13, p. 63-92.
Websites Used
Agnico Eagle Inc. http://www.agnico-eagle.com
Argonaut Gold Inc. http://www.argonautgoldinc.com
Coeur d’Alene Mines Corporation http://www.coeur.com
First Majestic Silver Corp http://www.firstmajestic.com
Gammon Gold Inc. http://www.gammongold.com
Primero Mining Corp http://www.primeromining.com
45
Appendix I
Statements of Qualifications
February 2011
46
February 2011
CERTIFICATE of AUTHOR
I, Peter C. Webster, P. Geo. do hereby certify that:
1.
I currently reside in Dartmouth, Nova Scotia and I am currently employed as
President and Senior Manager with:
65 Queen Street
Dartmouth, Nova Scotia, Canada
B2Y 1G4
2.
I graduated with a Bachelors Degree in Geology from Dalhousie University
in 1981. In addition, I obtained a Certificate in Environmental Management
(C.E.M.) from the Technical University of Nova Scotia in 1996.
3.
I am a registered member in good standing of the Association of
Professional Geoscientists of Nova Scotia, registration number 047. I am a
member in good standing of the Association of Professional Engineers and
Geoscientists of Newfoundland and Labrador, member number 03337.
4.
I have worked as a geologist in Canada and internationally for over 27 years
since my graduation from university in 1981. I have a wide variety of
commodity experience including, gold, VMS, base metals, nickel, and
industrial minerals. I have completed numerous NI43-101 compliant
Technical Reports and Resource Estimates.
5.
I have relevant work experience and authored reports on similar epithermal
gold deposits. I have worked in Mexico on two occasions for Gammon Lake
Resources and evaluated similar style gold and silver mineralization and
alteration.
6.
I have no prior involvement with the San Diego Property that is the subject
of this report.
7.
I have read the definition of “qualified person” set out in National
Instrument 43-101 (“NI 43-101”) and certify that by reason of my education,
affiliation with a professional association (as defined in NI 43-101) and past
relevant work experience, I fulfill the requirements to be a “qualified
person” for the purposes of NI 43-101.
8.
47
February 2011
I am the qualified person responsible all items in this Technical Report:
Technical Report On The
San Diego Property,
Durango, Mexico
For
GoGold Resources Inc.
Location Zone 13 N
WGS 84
466,000 E; 2,576,600 N
9.
I visited the San Diego property on January 19th, 2011 at which time I visited
the San Diego North and Centre properties and viewed outcrop
mineralization and alteration that is the subject of this report.
10.
To the best of my knowledge, information and belief, the Technical Report
contains all scientific and technical information that is required to be
disclosed to make those sections of the technical report not misleading.
11.
I am independent of GoGold Resources Inc. applying all of the tests in
Section 1.4 of National Instrument 43-101.
12.
I have read National Instrument 43-101 and Form 43-101F1, and believe
that this Technical Report has been prepared in compliance with that
instrument and form.
Dated this 21st Day of February, 2011
“Signed and Sealed by”
____________________________
Peter C. Webster, P. Geo.
President
48
February 2011
CERTIFICATE of AUTHOR
I, Ramon Luna, am a professional geologist and independent consultant. For the last year
since September 2009, I President and Manager for my own company:
Servicios y Proyectos Mineros de Mexico S.A. de C.V.
Calle Quinta del Roble #5 Colonia Las Quintas
Hermosillo, Sonora, Mexico
1. I graduated from the Universidad de Sonora, in Hermosillo Sonora Mexico, with a
Bachelor’s of Geology degree in 2000
2. I am a Geologist, registered with the Australian Institute of Geosciences, since May 26,
2008, registration number 3772.
3. I have been engaged in mineral exploration and mine development for more than eleven
years.
4.
I am the qualified person and participated in writing of the Technical Report:
Technical Report On The
San Diego Property,
Durango, Mexico
For
GoGold Resources Inc.
Location Zone 13 N
WGS 84
466,000 E; 2,576,600 N
5. As a result of my affiliation with a professional association, experience and education, I
am a “Qualified Person” as defined in National Policy 43-101.
6. I am not aware of any material fact or material change that is not reflected in the
Technical Report.
7. I have read the definition of “qualified person” set out in National Instrument 43-101
(“NI 43-101”) and certify that by reason of my education, affiliation with a professional
association (as defined in NI 43-101) and past relevant work experience, I fulfill the
requirements to be a “qualified person” for the purposes of NI 43-101.
8. I have read National Instrument 43-101 and Form 43-101F1. The Technical Report has
been prepared in compliance with that instrument and form.
9. I am President of Servicios y Proyectos Mineros de Mexico, S.A. de C.V. (SPM) a
Mexican company that was contracted to complete exploration on the property for
Mexican Gold Holdings Corporation Incorporated (MHC) and GoGold. I am not
49
February 2011
independent of MHC, Minera Dorango Dorado S.A. DE C.V. (MDD) or GoGold as I
am a shareholder in MHC and part of his compensation will include shares of GoGold.
In addition, the company SPM currently derives the majority of its income from these
companies.
10. I consent to the filing of the Technical Report with any stock exchange or other
regulatory authority and any publication by them, including electronic publication of
this report, in the public company files on their websites accessible to the public.
11. The Technical Report is based on the examination of the available data including
previous reports, the information generated by the SPM geologist on the property and
my experience as a geologist and “Qualified Person”
12. As at the date of this certificate, to the best of my knowledge, information and belief,
the Technical Report contains all scientific and technical information required to be
disclosed to not make it misleading.
Dated this 21st day of February, 2011.
“Signed”
____________________________
Ramon Luna Espinoza Q.P., P.Geo
50
Appendix II
Servicios y Proyectos Mineros de Mexico SA DE CV
Assay Data
February 2011
Sample_Name
Adri 8
Adri 9
Adri 13
Adri 14
Adri 19
Adri 20
Adri 21
Adri 22
Nop‐01
Nop‐02
Nop‐03
Nop‐04
Nop‐05
Nop‐06
Nop‐07
chinc‐01
chinc‐02
chinc‐03
chinc‐04
chinc‐05
chinc‐06
chinc‐07
chinc‐08
PNA‐10
PNA‐11
PNA‐12
PNA‐13
PNA‐14
PNA‐15
PNA‐16
PNA‐17
PNA‐18
PNA‐19
PNA‐20
PNA‐21
PNA‐22
PNA‐23
PNA‐24
PNA‐25
PNA‐26
PNA‐27
PNA‐28
East_WGS84
467284
467321
467835
467823
467821
467821
468585
467683
467823
467833
467833
467834
467836
467860
467862
467699
467699
467699
467699
467699
467810
467811
467812
467681
467681
467682
467684
467684
467684
467797
467795
467795
467800
467771
467771
467770
467769
467768
467767
467765
467763
467762
North_WGS 84
2576931
2576881
2576181
2576083
2575326
2575021
2574997
2574672
2576168
2576176
2576178
2576179
2576178
2576183
2576185
2575662
2575660
2575658
2575656
2575655
2575326
2575327
2575327
2575655
2575653
2575651
2575650
2575648
2575647
2575325
2575323
2575320
2575324
2575394
2575395
2575397
2575399
2575400
2575402
2575403
2575404
2575406
Auppm
0.52
4.22
1.01
1.61
0.2
1.61
0.21
1.87
0.358
8.87
0.17
1.3
2.1
4.72
0.851
0.022
0.12
2.82
0.097
0.901
0.057
0.136
0.09
0.005
0.011
0.535
0.762
3.444
0.061
0.112
0.07
0.036
0.164
0.005
0.013
0.016
0.005
0.005
0.005
0.005
0.005
0.005
Agppm
1.7
5.4
2.7
‐9999
‐9999
1.9
‐9999
‐9999
1.3
8.9
0.2
2.7
2.9
6.4
3.8
1
4.8
128
3.4
20.6
0.8
1.3
3.8
1
1
7
26
97
6
5
1
1
1
1
1
1
1
1
1
1
1
2
Wide
3
2
2
2
4
2
2
2
6
1.9
2
2
4
2.5
2
2
2
2
0.8
2
1.1
1.1
1.1
2
2
2
2
1
2
1.2
2.4
2
1
1.2
2
2
2
2
2
2
2
2
Sample Area
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
Type
chanel
chanel
chanel
chanel
chanel
chanel
chanel
chanel
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
chanel
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
chanel
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
Geology
andesitic breccia with cuatz fragments and pirite
adensitic rock with pirite
adensitic rock with pirite and cuarz veinlets
cuarz breccia with pirite
adensitic rock with pirite with silicification and ox
adensitic rock with pirite and silicification
Sample_Name
PNA‐29
PNA‐30
PNA‐31
PNA‐32
PNA‐33
PNA‐34
PNA‐35
PNA‐60
PNA‐61
PNA‐62
PNA‐63
PNA‐64
PNA‐65
PNA‐66
PNA‐67
PNA‐68
PNA‐81
PNA‐82
PNA‐83
PNA‐84
PNA‐85
PNA‐86
PNA‐87
PNA‐88
PNA‐89
PNA‐90
PNA‐91
PNA‐92
PNA‐93
PNA‐94
PNA‐95
PNA‐96
PNA‐97
PNA‐98
PNA‐99
PNA‐100
PNA‐101
PNA‐102
PNA‐103
PNA‐104
PNA‐105
PNA‐106
East_WGS84
467764
468585
468574
468572
467874
467815
467814
466900
466899
466900
466900
466896
466894
466894
466892
466892
467890
467889
467887
467886
467884
467882
467880
467874
467875
467895
467965
468779
468779
468780
468781
468781
468781
468781
467856
467854
467750
467839
467695
467703
467700
467700
North_WGS 84
2575439
2575031
2575014
2575010
2575102
2575044
2575047
2576555
2576555
2576516
2576527
2576527
2576529
2576529
2576531
2576531
2576124
2576123
2576121
2576120
2576119
2576117
2576175
2576170
2576155
2576150
2576110
2576710
2576710
2576710
2576703
2576703
2576697
2576701
2574663
2574663
2574763
2574699
2574635
2574665
2574665
2574669
Auppm
0.005
0.24
0.639
0.525
0.307
2.334
4.998
0.288
0.272
0.235
0.036
0.073
0.431
0.164
1.765
0.026
0.033
0.041
0.005
0.045
0.005
0.005
0.046
0.005
0.005
0.027
0.005
3.851
4.988
9.521
1.749
2.795
6.259
0.038
0.022
0.051
3.209
0.034
0.067
0.026
0.005
0.03
Agppm
1
1
1
1
1
2
9
7
1
1
1
4
17
35
5
1
1
1
1
1
1
1
1
1
1
3
1
54
41
40
13
17
19
3
1
1
2
1
1
1
1
1
Wide
2
1
1
3
1
3
0.55
1
2
2
4
2.5
0.8
1.8
0.7
2
1.5
2.5
1.8
2
3
5
2
2.5
2.5
6
3.5
1
1
1.5
1.3
1
2
3.5
2.5
4
0.5
2
3
3
4
4
Sample Area
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
Type
rock sample
chanel
chanel
chanel
grab sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
chanel
chanel
chanel
chanel
chanel
chanel
chanel
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
Geology
fault zone
fault zone
fault zone
cuarz fragments
fault zone
fault zone
fault zone
fault zone
fault zone
dacitic rock with strong sili
fault zone
andesitic rock with silicification and ox
Sample_Name
PNA‐107
PNA‐108
PNA‐109
PNA‐110
PNA‐111
PNA‐112
PNA‐113
PNA‐114
PNA‐115
PNA‐116
PNA‐117
PNA‐118
PNA‐119
PNA‐120
PNA‐121
PNA‐122
PNA‐123
PNA‐124
PNA‐125
PNA‐185
PNA‐186
PNA‐194
PNA‐195
PNA‐196
PNA‐197
PNA‐198
PNA‐199
PNA‐200
PNA‐201
PNA‐202
PNA‐203
PNA‐204
PNA‐205
PNA‐206
PNA‐207
PNA‐208
PNA‐209
PNA‐210
PNA‐211
PNA‐212
PNA‐213
PNA‐214
East_WGS84
467696
467684
467685
467697
467695
467646
467643
467639
467634
467657
467657
467600
467598
467596
467561
467560
467557
467555
467542
467400
467395
471898
471898
471898
471898
471900
471910
471919
471915
471910
471906
471901
471880
471920
471920
471940
471935
471931
471926
471922
471918
471907
North_WGS 84
2574669
2574679
2574682
2574747
2574746
2574731
2574735
2574738
2574740
2574765
2574765
2574768
2574770
2574773
2574812
2574815
2574816
2574819
2574832
2574504
2574500
2576412
2576416
2576418
2576420
2576422
2576427
2576511
2576514
2576516
2576519
2576519
2576530
2576510
2576530
2576608
2576608
2576611
2576613
2576616
2576618
2576623
Auppm
0.23
0.005
0.048
0.032
0.148
0.072
0.019
0.527
0.04
0.039
0.005
0.011
0.005
0.01
0.005
0.031
0.057
0.179
0.024
0.005
0.005
0.076
0.003
0.003
0.305
0.098
1.303
0.016
0.038
0.154
0.048
0.782
0.161
0.013
0.585
0.015
0.165
0.063
0.003
0.174
0.102
0.016
Agppm
1
1
1
1
3
1
1
1
2
1
1
1
1
1
3
1
3
3
2
19
1
15
2
37
18
2
28
2
2
10
2
16
2
2
14
2
2
2
2
2
2
2
Wide
1
3
2
2
3
5
5
5
5
3
3
3
3
3
3
3
3
6
4
3
3
4
2
1.5
3
2
1.5
5
5
5
5
5
5
1.5
1.5
5
5
5
5
5
5
5
Sample Area
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego centro
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
Type
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
Geology
cuartz breccia with pirite
andesitic rock with cuartz veinlets
dacite rock with oxi
dacite rock with oxi
andesitic rock with pirite
fault zone
fault zone
andesitic rock with strong oxi
andesitic rock with silicification and cuartz veinlets
Sample_Name
PNA‐215
PNA‐216
PNA‐217
PNA‐218
PNA‐219
PNA‐220
PNA‐221
PNA‐222
PNA‐223
PNA‐224
PNA‐225
PNA‐226
PNA‐227
PNA‐228
PNA‐229
PNA‐230
PNA‐231
PNA‐232
PNA‐233
PNA‐234
PNA‐235
PNA‐236
East_WGS84
471950
471931
471920
472387
472382
472432
472432
472430
472427
472425
472423
472420
472418
472415
472422
472421
472420
470262
470261
470178
470079
470078
North_WGS 84
2576681
2576675
2576680
2577134
2577128
2577220
2577387
2577388
2577393
2577397
2577401
2577406
2577410
2577414
2577455
2577460
2577465
2576853
2576854
2577003
2576754
2576756
Auppm
0.205
0.058
0.082
0.125
0.046
0.037
0.19
0.031
0.057
0.202
0.064
0.036
0.016
0.016
0.392
0.032
0.037
0.003
0.003
0.096
0.024
3.333
Agppm
12
50
12
2
2
2
22
2
2
23
12
2
2
2
24
2
2
21
2
2
2
2
Wide
5
4
4
7.5
5
5
2.5
5
5
5
5
5
5
5
5
5
5
1
5
5
1.5
1.5
Sample Area
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
san diego este
Type
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
rock sample
Geology
51
Appendix III
Author Sample Data
February 2011
IQP Assay Data SGS Labs
ANALYTE
METHOD
DETECTION
UNITS
26576
26577
26578
26579
26580
26581
26582
26583
26584
26585
26586
26587
DUP-26576
AuAASGT
FAG323
0.01
g/t
>10
0.18
0.094
2.642
7.798
1.795
2.303
3.199
0.031
0.649
0.015
>10
>10
Ag
FAG323
10
g/t
161
24
<10
76
26
<10
550
30
<10
<10
<10
<10
175
Au
FAG303
Ag
ICP14B
1
ppm
58.64 >10
N.A.
>10
N.A.
N.A.
>10
N.A.
>10
N.A.
N.A.
>10
N.A.
>10
N.A.
<2
N.A.
<2
N.A.
<2
15
58.45 >10
2
g/t
7
9
3
Al
ICP14B
0.01
%
0.49
1.5
1.05
1.17
1.05
1.42
0.02
0.84
2.51
2.71
1.57
0.17
0.49
As
ICP14B
Ba
ICP14B
10
ppm
1
ppm
46
<10
56
66
28
15
19
199
28
23
<10
11
47
109
21
109
178
19
76
15
17
57
41
86
7
111
Be
ICP14B
0.5
ppm
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
1.1
0.6
0.6
0.6
<0.5
<0.5
Bi
ICP14B
10
ppm
40
<10
<10
70
150
<10
30
10
<10
<10
<10
20
40
Ca
ICP14B
0.01
%
<0.01
<0.01
0.03
<0.01
<0.01
<0.01
<0.01
2.55
0.96
1.06
0.62
0.02
<0.01
Cd
ICP14B
Co
ICP14B
1
ppm
<1
<1
<1
<1
<1
<1
<1
<1
<1
Cr
ICP14B
1
ppm
<1
<1
1
ppm
6
<1
<1
<1
68 <1
6
3
4
<1
Cu
ICP14B
8
13
15
7
10 <1
1
ppm
11
26
18
18
21
15
2
6
17
14
10
12
834
208
333
655
545
312
773
287
41
19
125
122
841
52
Appendix IV
Laboratory Sample Preparation and
Assay Methods
February 2011
Sample Preparation Package – PREP-31
Standard Sample Preparation: Dry, Crush, Split and Pulverize
Sample preparation is the most critical step in the entire laboratory operation.
The purpose of preparation is to produce a homogeneous analytical subsample that is fully representative of the material submitted to the laboratory.
The sample is logged in the tracking system, weighed, dried and finely
crushed to better than 70 % passing a 2 mm (Tyler 9 mesh, US Std. No.10)
screen. A split of up to 250 g is taken and pulverized to better than 85 %
passing a 75 micron (Tyler 200 mesh, US Std. No. 200) screen. This method
is appropriate for rock chip or drill samples.
Method
Code
Description
LOG-22
Sample is logged in tracking system and a bar code label is
attached.
CRU-31
Fine crushing of rock chip and drill samples to better than
70 % of the sample passing 2 mm.
SPL-21
Split sample using riffle splitter.
PUL-31
A sample split of up to 250 g is pulverized to better than
85 % of the sample passing 75 microns.
Revision 02.02
07-May-07
Page 1 of 2
Flow Chart - Sample Preparation Package – PREP-31
Standard Sample Preparation: Dry, Crush, Split and Pulverize
Receive
Sample
LOG-22
Affix Bar Code and Log Sample in LIMS
WEI-21
Record received sample weight
Is sample
dry?
NO
Dry Sample
YES
Keep
Reject
If samples air-dry
overnight, no charge to
client. If samples are
excessively wet, the
sample should be dried
to a maximum of
120°C. (DRY-21)
CRU-31
Fine crushing of rock chip and drill samples
to better than 70 % < 2 mm
QC testing of crushing
efficiency is conducted
on random samples
(CRU-QC).
SPL-21
Split sample using riffle
splitter
The sample reject is
saved or dumped
pending client
instructions. Prolonged
storage (> 45 days) of
rejects will be charged
to the client.
PUL-31
Up to 250 g sample split is pulverized to
better than 85 % < 75 microns
QC testing of
pulverizing efficiency is
conducted on random
samples (PUL-QC).
Retain
pulp for
analysis
Lab splits are required
when analyses must
be performed at a
location different than
where samples
received.
Reject
Revision 02.02
07-May-07
Page 2 of 2
Geochemical Procedure - ME-ICP41
Trace Level Methods Using Conventional ICP-AES Analysis
Sample Decomposition:
Analytical Method:
Nitric Aqua Regia Digestion (GEO-AR01)
Inductively Coupled Plasma - Atomic
Emission Spectroscopy (ICP - AES)
A prepared sample is digested with aqua regia in a graphite heating block.
After cooling, the resulting solution is diluted to 12.5 mL with deionized water,
mixed and analyzed by inductively coupled plasma-atomic emission
spectrometry. The analytical results are corrected for inter-element spectral
interferences.
NOTE: In the majority of geological matrices, data reported from an aqua
regia leach should be considered as representing only the leachable portion
of the particular analyte.
Symbol
Units
Lower
Limit
Upper
Limit
Default
Overlimit
Method
Silver
Ag
ppm
0.2
100
Ag-OG46
Aluminum
Al
%
0.01
25
Arsenic
As
ppm
2
10000
Boron
B
ppm
10
10000
Barium
Ba
ppm
10
10000
Beryllium
Be
ppm
0.5
1000
Bismuth
Bi
ppm
2
10000
Calcium
Ca
%
0.01
25
Cadmium
Cd
ppm
0.5
1000
Cobalt
Co
ppm
1
10000
Chromium
Cr
ppm
1
10000
Copper
Cu
ppm
1
10000
Iron
Fe
%
0.01
50
Element
Cu-OG46
Revision 06.02
20-Apr-09
Page 1 of 3
Fire Assay Procedure – Ag-GRA21, Ag-GRA22, Au-GRA21 and
Au-GRA22
Precious Metals Gravimetric Analysis Methods
Sample Decomposition:
Fire Assay Fusion (FA-FUSAG1,
FA-FUSAG2, FA-FUSGV1 and FAFUSGV2)
Gravimetric
Analytical Method:
A prepared sample is fused with a mixture of lead oxide, sodium carbonate,
borax, silica and other reagents in order to produce a lead button. The lead
button containing the precious metals is cupelled to remove the lead. The
remaining gold and silver bead is parted in dilute nitric acid, annealed and
weighed as gold. Silver, if requested, is then determined by the difference in
weights.
Method
Code
Element Symbol
Units
Sample
Weight
(g)
Detection
Limit
Upper
Limit
Ag-GRA21
Silver
Ag
ppm
30
5
10,000
Ag-GRA22
Silver
Ag
ppm
50
5
10,000
Au-GRA21
Gold
Au
ppm
30
0.05
1000
Au-GRA22
Gold
Au
ppm
50
0.05
1000
Revision 03.01
7-Mar-11
Page 1 of 1
Lab Accreditation & QA Overview (rev05.00)
Revision: 05.00
December 7, 2010
Page 1 of 9
ISO 9001
CRU-31
PUL-31
(
DetectionLimit
c
P) 100%
%Precision as a Function of Detection Limit
120.00%
100.00%
80.00%
% Precision
Pc
1 ppm DL
2 ppm DL
10 ppm DL
60.00%
40.00%
20.00%
0.00%
1
2
5
10
20
50
100
200
Concentration (ppm)
500
1000
2000
5000
10000
Minerals Services METHOD SUMMARY
Sample Reduction
1. Parameter(s) measured, unit(s):
All
2. Typical sample size:
.250 – 3 Kg.
3. Type of sample applicable (media):
Geological and metallurgical samples (ores, concentrates, rocks, soils and metallurgical process
products)
4. Sample preparation technique used:
Samples require various preparation procedures to ensure sample homogeneity, representative subsamples and prevent cross contamination. The stepwise procedure may involve all steps or some of
the steps depending upon the state of the sample as received. The sample is dried at 95 +/-10°C, if
received wet or if requested by client. Drying temperatures can vary based on client specific requests
or when mercury determination is requested. The next step involves crushing to reduce the sample
size to typically 2mm/10 mesh (9 mesh Tyler). The sample is then split via a riffle splitter continuously
in order to divide the sample into typically a 250g sub-sample for analysis and the remainder is stored
as a reject. A rotary sample divider may also be used to split the sample.
Pulverizing is done using pots made of either hardened chrome steel or mild steel material. Crushed
material is transferred into a clean pot and the pot is placed into a vibratory mill. Samples are
pulverized to typically 75 microns/200 mesh or otherwise specified by the client.
5. Method of analysis used:
This may involve various analyses depending upon the analytes requested and sample type.
6. Data reduction by:
Computer, on line, data fed to Laboratory Information Management System with secure audit trail.
7. Quality Control
Crushing/ Pulverizing
Parameters
Cru. Prep. Blank
Cru. Prep. Replicates
Cru. % Passing Checks
Pul. Prep. Blank
Pul. Prep. Replicates
Pul. % Passing Checks
Frequency
At the start of batch
Every 50 samples
Every 50 samples
At the start of batch
Every 50 samples
Every 50 samples
Quality Control Requirement
If not specified otherwise by the client
75% passing 9 mesh (2mm) (Tyler)
85% passing 200 mesh (75 um)
SGS Minerals Services in Durango is accredited by the Standards Council of Canada (SCC) for specific
mineral tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Copies of the current
scope of testing and accreditation documents are available upon request. A link to our current scope of
accreditation is available on our website or directly from the SCC website www.scc.ca.
Refer to our General Conditions of Service accessible at http://www.sgs.com/terms _and_conditions.htm.
SGS Minerals Services
Durango Laboratory
www.sgs.com
Member of the SGS Group (Société Générale de Surveillance)
ICP90Q: Preparation and Determination of 7 Elements in Mineralized (Ore Grade)
Samples by Sodium Peroxide Fusion and Inductively Coupled Plasma Optical
Emission Spectrometry [As, Fe, Cu, Ni, Pb, Sb, Zn; Na2O2; ICP-OES]
The method consists of a sodium peroxide fusion with ICP-OES finish and is applicable to the determination
of Copper, Lead, Nickel, Zinc, Arsenic, Antimony and Iron in any geological sample matrix. The method is
applicable to the assay analysis of base metals in samples and provides precision and accuracy of greater
than 5% for individual elements. Results are reported in %.
0.20 g
Crushed and Pulverized rocks, soils and sediments
Crushed and pulverized rock, soil and /or sediment samples are fused by Sodium peroxide in zirconium
crucibles and dissolved using dilute HNO3.
The digested sample solution is aspirated into the inductively coupled plasma Optical Emission
Spectrometer (ICP-OES) where the atoms in the plasma emit light (photons) with characteristic
wavelengths for each element. This light is recorded by optical spectrometers and when calibrated against
standards the technique provides a quantitative analysis of the original sample.
The results are exported via computer, on line, data fed to the Laboratory Information Management System
(LIMS CCLAS EL) with secure audit trail.
7. Quality control:
The ICP-OES is calibrated with each analytical run. An instrument blank and calibration check is analyzed
with each run. Preparation blanks and reference materials are analyzed randomly within the batch, one
replicate every 12 samples.
All QC samples are verified using LIMS. The acceptance criteria are statistically controlled and control
charts are used to monitor accuracy and precision. Data that falls outside the control limits is investigated
and repeated as necessary.
SGS Minerals Services in Durango is accredited by the Standards Council of Canada (SCC) for specific mineral
tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Our method ICP90Q is currently
listed on the scope. ISO/IEC addresses both the quality management system and the technical aspects of
operating a testing laboratory. Copies of the current scope of testing and accreditation documents are available
upon request. A link to our current scope of accreditation is available on our website or directly from the SCC
website www.scc.ca.
Durango Laboratory
www.sgs.com
ICP40B: Preparation and determination of 32 Elements by 4-acid Digest and
Inductively Coupled Plasma Optical Emission Spectrometry [HNO3, HCl, HF, HClO4;
ICP-OES; Ag, Al, As, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, K, La, Li, Mg, Mn, Mo, Na, Ni, P,
Pb, Sb, Sc, Sn, Sr, Ti, V, W, Y, Zn, Zr]
The method is applicable to the determination of Aluminum, Antimony, Arsenic, Barium, Beryllium, Bismuth,
Cadmium, Calcium, Chromium, Cobalt, Copper, Iron, Lanthanum, Lead, Lithium, Magnesium, Manganese,
Molybdenum, Nickel, Phosphorus, Potassium, Scandium, Silver, Sodium, Strontium, Tin, Titanium, Tungsten,
Vanadium, Yttrium, Zinc and Zirconium in geological sample matrices. Results are reported in ppm (g/t) or %.
0.2 g
Crushed and pulverized rock, soil and /or sediment samples are digested using HNO3, HCl, HF and HClO4.
The digested sample solution is aspirated into the inductively coupled plasma Optical Emission
7. Quality control:
with each run. Preparation blanks and reference material are randomly placed; one replicate sample is
selected every 12 samples.
tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Our method ICP40B is currently listed
on the scope. ISO/IEC addresses both the quality management system and the technical aspects of operating a
testing laboratory. Copies of the current scope of testing and accreditation documents are available upon
request. A link to our current scope of accreditation is available on our website or directly from the SCC website
www.scc.ca.
Durango Laboratory
www.sgs.com
ICP14B: Preparation and Determination of 34 Elements by 2-acid Digest and
Inductively Coupled Plasma Optical Emission Spectrometry [HN03; HCL; ICP-OES;
Ag, Al, As, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S,
Sb, Sc, Sn, Sr, Ti, V, W, Y, Zn, Zr]
The method consists of a nitric and hydrochloric acid digestion (aqua regia) with an ICP-OES finish and is
applicable to the determination of Aluminium, Antimony, Arsenic, Barium, Beryllium, Bismuth, Cadmium,
Calcium, Chromium, Cobalt, Copper, Iron, Lanthanum, Lead, Lithium, Magnesium, Manganese, Mercury,
Molybdenum, Nickel, Phosphorus, Potassium, Scandium, Silver, Sodium, Strontium, Sulphur, Tin, Titanium,
Tungsten, Vanadium, Yttrium, Zinc and Zirconium in geological sample matrices. Individual detection limits,
accuracies, precisions and validation ranges are stated in the method file. Results are reported in ppm (g/t)
or %.
0.25 g
Crushed and pulverized rock, soil and /or sediment samples are digested using HNO3 and HCl.
The digested sample solution is aspirated into the Inductively Coupled Plasma Optical Emission
7. Quality control:
with each run. Preparation blanks and reference materials are analyzed randomly within the batch, one
replicate every 12 samples.
tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Our method ICP14B is currently listed
on the scope. ISO/IEC addresses both the quality management system and the technical aspects of operating a
testing laboratory. Copies of the current scope of testing and accreditation documents are available upon
request. A link to our current scope of accreditation is available on our website or directly from the SCC website
www.scc.ca.
Durango Laboratory
www.sgs.com
Durango Laboratory
www.sgs.com
FAG323: Preparation and Determination of Gold and/or Silver by Lead Fusion Fire
Assay, Atomic Absorption Spectrometry or Gravimetric Finish [ME-FAA313 for Au by
AAS; ME-FAG323 for Au by AAS and Ag by Gravimetric; ME-FAG313 for Ag by
Gravimetric; ME-FAG303 for Au by Gravimetric]
This method summary applies to FAG323 (combined Au and Ag determinations), FAA313 (Au
determination with AAS finish), FAG303 (Au determination with a Gravimetric Finish), and FAG313 (Ag
determination only). All codes have been combined since the method is Fire Assay (consisting of two
consecutive pyrometallurgical processes), with only slight variations either based on the client’s request
and/or Au concentrations. Results are reported in ppb, ppm, g/t or %.
30 g
Crushed and pulverized rocks.
Crushed and pulverized rock samples are weighed, mixed with lead oxide flux and fused at approximately
1100°C, followed by cupellation of a lead button resulting in a dore bead consisting of gold and silver. In
some cases when no dore bead is visible or when there is not enough silver present, the bead is either
recupelled with silver and lead foil, in order to allow for gold determination or the sample is refused with
silver nitrate.
If FAG323 is selected by the client, the dore bead is first weighed by micro-balance for total silver and gold.
Gravimetric Analysis is a technique through which the amount of an analyte can be determined through the
measurement of mass from the use of a micro balance.
The dore bead is then transferred to at test tube where silver is precipitated by acid forming silver chloride,
and gold remains in solution.
The solution is aspirated into a Flame Atomic Absorption Spectrometer (AAS), aerosolized, and mixed with
combustible gas (acetylene and air). The mixture is ignited in a flame that has a temperature ranging from
2,100 to 2,800 C. During combustion, atoms of gold in the sample are reduced to free, unexcited ground
state atoms, which absorb light. Light of the appropriate wavelength is supplied and the amount of light
absorbed can be measured against a standard curve.
The silver is then calculated by difference.
If FAA313 is selected, then gold only is determined with an AAS.
If FAG313 is selected, then the dore bead is weighed by micro balance for silver only.
If FAG303 is selected, the dore bead is placed into a porcelain crucible, where silver is removed by using
dilute Nitric Acid and heating to 650 C. The remaining gold is determined by micro-balance.
Durango Laboratory
www.sgs.com
7. Quality control:
Fusion blanks and certified reference materials are analyzed randomly within the batch, one replicate every
12 samples. The micro-balance is calibrated annually by an accredited source. It is verified using a
calibrated, traceable weight on a daily basis as required. All QC samples are verified using LIMS. The
acceptance criteria are statistically controlled and control charts are used to monitor accuracy and precision.
Data that falls outside the control limits is investigated and repeated as necessary.
tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Our methods FAA313, FAG323,
FAG313, and FAG303 are currently listed on the scope. ISO/IEC addresses both the quality management
system and the technical aspects of operating a testing laboratory. Copies of the current scope of testing and
accreditation documents are available upon request. A link to our current scope of accreditation is available on
our website or directly from the SCC website www.scc.ca.
Durango Laboratory
www.sgs.com
AAS21E: Preparation and Determination of Silver by 3-acid Digest and Atomic
Absorption Spectrometry [HNO3, HCl, HF; Ag; AAS]
The method consists of a nitric, hydrochloric and hydrofluoric acid digestion with an atomic absorption
spectrometry finish (AAS), and is applicable to the determination of Silver in geological sample matrices.
Results are reported in g/t (ppm)
2 g in 50 mL
Crushed and pulverized rock, soil and /or sediment samples are digested using HNO3, HCl and HF in 50 mL
centrifuge tubes in a hot water bath.
The digested sample solution is aspirated into Flame Atomic Absorption Spectrometer (AAS), aerosolized,
and mixed with the combustible gas, acetylene and air. The mixture is ignited in a flame at a temperature
that ranges from 2100 to 2800 C. During combustion, atoms of the Silver in the sample are reduced to free,
unexcited ground state atoms, which absorb light. Light of the appropriate wavelength is supplied and the
amount of light absorbed can be measured against a standard curve.
7. Quality control:
The atomic absorption spectrometer (AAS) is calibrated with each workorder. An instrument blank and
calibration check is analyzed with each run. Preparation blank and reference material are analyzed
randomly withing the batch, one replicate sample every 12 samples.
tests listed on the scope of accreditations to the ISO/IEC 17025 standard. Our method AAS21E is currently
listed on the scope. ISO/IEC addresses both the quality management system and the technical aspects of
operating a testing laboratory. Copies of the current scope of testing and accreditation documents are available
upon request. A link to our current scope of accreditation is available on our website or directly from the SCC
website www.scc.ca.
Durango Laboratory
www.sgs.com
SCOPE OF ACCREDITATION
SGS MINERALES - DURANGO
Cd. Industrial C.P. 34208
Durango, DURANGO,
Accredited Laboratory No. 657
(Conforms with requirements of CAN-P-1579 , CAN-P-4E (ISO/IEC 17025:2005))
CONTACT:
TEL:
FAX:
EMAIL:
Ms. Valerie Murphy
(705) 652-2044
(705) 652-2129
[email protected]
CLIENTS SERVED:
All interested parties
FIELDS OF TESTING:
Chemical/Physical
PROGRAM SPECIALTY Mineral Analysis
AREA:
ISSUED ON:
2009-11-10
VALID TO:
2013-11-10
METALLIC ORES AND PRODUCTS
Mineral Analysis Testing
Mineral Assaying
ME-AAS21E
ME-CON11V
Preparation and Determination of Silver by 3-acid
Digest and Atomic Absorption Spectrometry [HNO3,
HCL, HF; Ag; AAS]
Preparation and Determination of Lead in Ores,
Concentrates and Metallurgical Products by Separation,
Precipitation and Titration of Acid Solubles, Fusion
with Atomic Absorption Spectrometry of Acid
The approved and most recent version of this document can be viewed on the SCC website at http://palcan.scc.ca/SpecsSearch/GLSearchForm.do
Page 1 of 2
Standards Council of Canada Accredited Laboratory No. 657
ME-CON12V
ME-FAA313
ME-FAG323
ME-FAG313
ME-FAG303
ME-ICP14B
ME-ICP40B
ME-ICP90Q
Insolubles [Pb, AAS]
Preparation and Determination of Zinc in Ores,
Concentrates and Metallurgical Products by Separation,
Precipitation and Titration of Acid Solubles, Fusion
with Inductively Coupled Plasma Optical Emission
Atomic Absorption Spectrometry of Acid Insolubles
[Zn, ICP-OES AAS]
Preparation and Determination of Gold and/or Silver by
Lead Fusion Fire Assay, Atomic Absorption
Spectrometry or Gravimetric Finish [ME-FAA313 for
Au by AAS; ME-FAG323 for Au by AAS and Ag by
Gravimetric; ME-FAG313 for Ag by Gravimetric;
ME-FAG303 for Au by gravimetric]
Preparation and Determination of 34 Elements by
2-acid Digest and Inductively Coupled Plasma Optical
Emission Spectrometry [HN03; HCL; ICP-OES; Ag,
Al, As, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, La,
Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Sn, Sr, Ti, V,
W, Y, Zn, Zr]
Preparation and Determination of 32 Elements by
4-acid Digest and Inductively Coupled Plasma Optical
Emission Spectrometry [HNO3, HCL, HF, HCLO4;
ICP-OES; Ag, Al, As, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu,
Fe, K, La, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Sb, Sc, Sn,
Sr, Ti, V, W, Y, Zn, Zr]
Preparation and Determination of 7 elements in
Mineralized (Ore Grade) Samples by Sodium Peroxide
Fusion and Inductively Coupled Plasma Optical
Emission Spectrometry [As, Fe, Cu, Ni, Pb, Sb, Zn;
Na2O2; ICP-OES]
Notes:
CAN-P-4E (ISO/IEC 17025:2005): General Requirements for the Competence of Testing and Calibration
Laboratories (ISO/IEC 17025: 2005)
CAN-P-1579: Guidelines for the Accreditation of Mineral Analysis Testing Laboratories
S. Cross, Director, Conformity Assessment
Date: 2009-11-10
Number of Scope Listings: 10
SCC 1003-15/831
Partner File #0
Partner:
The approved and most recent version of this document can be viewed on the SCC website at http://palcan.scc.ca/SpecsSearch/GLSearchForm.do
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