PACHUCA PROJECT Municipality of Atotonilco El Grande, Hidalgo

PACHUCA PROJECT
Municipality of Atotonilco El Grande, Hidalgo. MEXICO
LOCATION AND ACCESS:
The project is located in the central part of the State of Hidalgo 13 Km in a direct line from
Pachuca, the State’s capital. The coordinates are 526,559 E and 2´245,367 N UTM .
The site is accessed by Federal highway # 105 that connects the City of Pachuca with
Mineral Del Monte and Atotonilco El Grande. From Atotonilco El Grande the project can be
accessed by good, four seasons, gravel roads. (See figures 1 & 2)
Figure 1 Location map for the Pachuca project in the Municipality of Atotonilco El Grande in the State of Hidalgo, Mexico.
1
Figure 2 Detailed map without scale of the principal access routes to the project using Pachuca City as the point of
departure.
2
GEOLOGY AND MINERALIZATION:
In physiographical terms, the Project can be divided into two zones; 1, the southwest limit
of the Sierra Madre Oriental that is characterized by the elongated mountains oriented in a NWSE direction and 2, the region to the west of the neovolcanic axis formed by the volcanic
ranges, gentle hills and alluvial plains.
The exposed rocks vary from Lower Cretasic to the present. The oldest rocks are
comprised of calcareous limestone of Lower Cretasic and thinly bedded limestone of the Doctor
formations overlain by late sediments of Upper Cretasic Mendez Formation.
From the Terciary Age, specifically from the Eocene, there is a conglomerate (unconformity)
comprised of limestone and volcanic rock fragments in a highly cemented silt of the Morro
Formation ( Segestrom 1957).
The major part of the Lower Tertiary, that is in unconformity with the Grupo Morro, is
comprised of lava breccias with a composition of rhyolite, andesite and even to dacite which
also contain some dykes that are at times mineralized. All of these rocks are locally known as
the “Grupo Pachuca” (Geyne, Fries Segestrom, Black and Wilson, 1963), these being the
principal host rocks for the regions economic deposits.
Covering the “Grupo Pachuca” as an unconformity is a brecciated dacite of the Zamate
formation that is of post-mineralization age.
These formations are found separated by errosinal disconformities.
Towards the end of the Tertiary Age, there were lake basin unit type deposits formed
consisting of limonites interwoven with sandy shales and basalts that reach to the Quaternary
period.
Figure 3 Geologic map of the area.
LOCAL GEOLOGY
In the area of interest there are no major old workings or small gambusino type openings
that could assist in preliminary exploration but one can use the exploration results of the
Canadian junior mining company Solitario Resources and its strategic alliance partner on the
project, Newmont Mining.
3
Figure 4 Location of Amajac and Tezahuapa mining claims and their location relative to Solitario Resources' claims. Note
similarities in surface structures of the world famous Pachuca mining district to the SE compared to the Solitario
exploration mapping. Information obtained from http://www.solitarioresources.com/pachucareal.html.
MINERALIZATION
The mineralization may be the same as that in the Pachuca District with economic
polymetalic structures whose principal product would be silver. In addition to this, from the field
observations, it is possible that a large, disseminated, lower grade gold deposit exists in the
area.
CLAIMS
There are a total of 4855 Ha’s in two, non-contigious, mining claim. The
two lots are:
TEZAHUAPA
1875 Ha’s
File number
103/00429
AMAJAC
2980 Ha’s
File number
103/00430
4
Both of these claims are good standing and in the process of being given a title number.
(See figures 3 and 4)
Photo 1 Strong argillaceous alteration of volcanic rocks where the existing hydrothermal presence in the region can be seen.
5
SAMPLING
Reconnaissance chip simples have been taken and sampled for gold, yielding values of
between 0.02 gr/t to 0.15 gr/t.*
*Preliminary Results
Sampling taken at ERSA Global de México, located in Torreón, Coah, MEX
OBSERVATIONS AND COMMENTS
The Pachuca exploration area is easily assessable with principal highways nearby and
excellent all season gravel roads. Traveling distance from Pachuca City to the site is about one
hour, or 2.5 to 3 hours from Mexico City’s airport.
Preliminary exploration targets are simply extensions of structures defined by Solitario
Resources and the many gossan zones on the properties.
There is a large hydrothermal expression demonstrated by the large alteration zones in the
central area of the Majac claim that may indicate the existence of a large volume gold
dissemination area.
Very little exploration has been done on the property aside from sampling. Detailed mapping
and sampling are required as the next steps in the exploration of this project.
6