GEOCHEMICAL REPORT on the NOBAR, THAR, CANOE and HIHO

GEOCHEMICAL REPORT on the NOBAR, THAR, CANOE and HIHO

BOX 4127, W H I T E H O R S E , Y.T.
-
1016
5 1 0 W E S T HASTINCS STREET
VANCOUVER, B.C. V6B 1L8
GEOCHEMICAL REPORT
on t h e
NOBAR, THAR, CANOE and H I H O CLAIM GROUP
LIARD M I N I N G D I V I S I O N
NTS 94F/14W
L a t i tude: 57"54 ' N
Longitude: 125"43 ' W
by
R.C.
Carne
ARCHER, CATHRO & ASSOCIATES (1981) LIMITED
for
GETTY CANADIAN METALS, LIMITED (Owner)
and
GATAGA JOINT VENTURE (Operator)
Submitted January 7, 1982
Y l A 3SQ
(403) 667-4415
TABLE OF CONTENTS
PAGE
ILLUSTRATIONS
Figure
Description
Locati on
1
Location Map
Follows page 2
2
Stratigraphic Column
Follows page 3
3
Claim Map (1:20,000 scale)
In Pocket A
4
Coppe r Geoc hemi stry
In Pocket B
5
Lead Geochemistry
In Pocket C
6
Zinc Geochemistry
In Pocket D
7
Silver Geochemistry
In Pocket E
APPENDICES
Appendix I
Statement o f Qualifications
Appendix I1
Summary of Costs
5
- 1 -
LIST OF CLAIMS
Claim
Record
Number
Number
o f Units
Noba r
Thar
Canoe
HiHo
3101
3 100
3099
3098
18
20
16
16
*
W
Record Date
E x p i r y Date
August
August
August
August
August
August
August
August
8,
8,
8,
8,
Pending acceptance o f t h i s r e p o r t
1980
1980
1980
1980
8,
8,
8,
8,
1982*
1982*
1982*
1982"
- 2 -
GEOCHEMICAL REPORT
on the
NOBAR, THAR, CANOE and HIHO. CLAIM GROUP
Introduction
The Nobar, Thar, Canoe and HiHo c l a i m group was s t a k e d i n 1980 by Gataga
J o i n t Venture i n the name of Welcome North Mines Ltd. t o c o v e r a p o s s i b l e s t r i k e
extension of s t r a t i f o r m z i n c - l e a d - s i l v e r m i n e r a l i z a t i o n on the Bear c l a i m s l o c a t e d
10 km t o the n o r t h e a s t .
Gataga J o i n t Venture (GJV), formed i n 1977 t o e x p l o r e
f o r lead-zinc i n n o r t h e a s t British Columbia, i s a s y n d i c a t e composed o f A q u i t a i n e
Company of Canada L t d . ,
Chevron Canada Limited, Getty Canadian Metals, Limited,
Welcome North Mines L t d . and Castlemaine E x p l o r a t i o n Ltd.
T h e Nobar, Thar,
Canoe and HiHo c l a i m s a r e p a r t of a l a r g e r group whose ownership was t r a n s f e r r e d
from Welcome North Mines Ltd. t o Getty Canadian Metals, Limited i n A p r i l 1981.
The e x p l o r a t i o n program was managed by Archer, Cathro & A s s o c i a t e s (1981) Limited
and was d i r e c t e d i n the f i e l d f o r the f i f t h successive season by R.C.
Carne.
About 150 s o i l samples were taken a t roughly 50 m x 100 m i n t e r v a l s on
the Nobar and Thar c l a i m s .
The remainder o f the claim group was n o t sampled
by the d a t e of f i l i n g o f this work.
Topographic c o n t r o l f o r the geochemical
survey was e s t a b l i s h e d w i t h the a i d of a contoured 1:5,000 s c a l e o r t h o p h o t o
map produced from a e r i a l photography flown by GJV i n 1979.
The 198Fwork was
c a r r i e d out i n the period June 1 t o June 7.
Location and Access
The Nobar, Thar, Canoe and HiHo c l a i m group i s l o c a t e d immediately s o u t h e a s t
w
of the c e n t r a l South Gataga Lakes on NTS map sheet 94F/14W ( F i g u r e 1 ) .
The
Figure 1: Location o f the Nobar, Thar, Canoe
and HiHo c l a i m group.
.
- 3 -
centre of the group is l o c a t e d a t l a t i t u d e 57'54'N and l o n g i t u d e 125'43'W.
Access i s by f l o a t - e q u i p p e d , fixed-wing a i r c r a f t from Watson Lake, Yukon
T e r r i t o r y , about 310 km t o the n o r t h w e s t , t o Mayfield Lake l o c a t e d about 30
km n o r t h e a s t o f the property.
T h e n e a r e s t l a r g e town, 200 km t o the e a s t , i s
F o r t Nelson which does n o t have a f l o a t p l a n e base.
Fuel and camp supplies
used f o r the 1981 program were t r u c k e d 300 km from Watson Lake t o Muncho Lake
( k m 747 on the Alaska Highway) and f e r r i e d 100 km d u r i n g mid-April, 1981 by
ski-equipped, s i n g l e Otter a i r c r a f t t o a winter a i r s t r i p l o c a t e d a t the headwaters
of Driftpile Creek.
F i e l d work was conducted w i t h a h e l i c o p t e r supported program
based a t a permanent camp o c a t e d on D r i f t p i l e Creek, a b o u t 25 km t o the northwest.
Regional Geology
w
The Gataga Lakes a r e a l i e s w i t h i n Kechika Trough, a s o u t h e a s t e r l y e x t e n s i o n
of the much l a r g e r Selwyn Basin.
t o lower M i s s i s s i p p i a n .
Sedimentary rocks range i n age from Cambrian
P r i o r t o u p p e r Devonian, e a s t e r l y d e r i v e d c l a s t i c
sedimentary assemblages r e f l e c t normal sedimentation while the w e s t e r l y d e r i v a t i o n
of upper Devonian t o M i s s i s s i p p i a n sedimentary rocks r e s u l t e d from block f a u l t i n g
and up1 i f t along the c o n t i n e n t a l margin.
Regional s t r a t i g r a p h i c r e l a t i o n s h i p s
a r e summarized on Figure 2 .
S t r u c t u r e d geology of the a r e a i s dominated by n o r t h w e s t e r l y - t r e n d i n g ,
e a s t e r l y - d i r e c t e d thrust f a u l t s .
P e l i t i c sedimentary r o c k s w i t h i n thrust sheets
a r e complexly deformed i n t o u p r i g h t t o s l i g h t l y o v e r t u r n e d i s o c l i n a l f o l d s c u t
by numerous n e a r - v e r t i c a l s h e a r zones.
i s commonly well developed.
A p e n e t r a t i v e a x i a l plane f o l i a t i o n
S t r u c t u r a l geology i s complicated by deformation
i n i t i a t e d p r i o r t o d e p o s i t i o n of middle Devonian c l a s t i c rocks above a pronounced
'Irrrr
unconformi t y .
UNNAMED
I.RPER TRIASSIC
WARNEFORD FW.
2Ooo
1500
LOWER MlfSbSlPQlAY
uDsb
GUNSTEEL FM.
uDsh
uDrtr
lo00
UPPER DEVONIAN
mots
mDex
mMb
mDss
BESA RIVER FM.
500
0
MIDDLE DEIIONIAN
lDch
R O N RIVER GI?
Metres
LOWER ORDCMCIAN
KECHIKA GP
MIDDLE CAMBRIAN
ATAN
GP.
LOWER CAMBRIAN
-
UNNAMED
UPPER HADRYNIAN
Figure 2: Generalized stratigraphy, Gataga Lakes area.
- 4 -
Upper Devonian s i l i c e o u s and p y r i t i c b l a c k s h a l e s a r e h o s t t o numerous
s t r a t i f o r m b a r i t e and b a r i t e - l e a d - z i n c d e p o s i t s i n the a r e a , n o t a b l y t h o s e a t
D r i f t p i l e Creek, some 10 km along strike t o the s o u t h e a s t and a t the Cyprus
Anvil-Hudson Bay Oil and Gas Cirque c l a i m s , l o c a t e d about 130 km s o u t h e a s t
of the a r e a .
Soil sampling o v e r the Nobar, Thar, Canoe and HiHo c l a i m group was designed
t o test the p o t e n t i a l of the underlying upper Devonian s h a l e s which a r e h o s t
t o a small s t r a t i f o r m z i n c - l e a d - s i l v e r showing on the GJV Bear c l a i m s l o c a t e d
10 km along s t r u c t u r a l strike t o the northwest.
Geoc herni ca 1 Su r vey
During the p e r i o d June 1 t o June 7, 1981 approximately 150 s o i l samples
were c o l l e c t e d from the Nobar and Thar c l a i m s and a d j a c e n t a r e a s .
Samples
were taken every 50 m a l o n g t r a v e r s e lines spaced a t 100 m i n t e r v a l s and running
perpendicular t o the regional s t r u c t u r a l g r a i n .
Samples, taken from the
"B'I
s o i l horizon where p o s s i b l e , were l o c a t e d w i t h the a i d of a H i p Chain measuring
device from base lines e s t a b l i s h e d w i t h a nylon c h a i n on a contoured 1:5,000
s c a l e orthophoto map.
Sample l o c a t i o n s were marked w i t h their prenumbered k r a f t
bag designation on orange survey f l a g g i n g .
All samples were shipped a i r f r e i g h t
t o Chernex Labs Ltd., North Vancouver, B.C. where they were d r i e d , s c r e e n e d t o
a minus 80 mesh f r a c t i o n and analyzed r o u t i n e l y f o r copper, l e a d , zinc and silver
c o n t e n t using a n i t r i c - p e r c h l o r i c a c i d e x t r a c t i o n and atomic a b s o r p t i o n spectrometry.
Samples which c o n t a i n e d a high barium c o n t e n t r e q u i r e d r e d i g e s t i o n due t o barium
i n t e r f e r e n c e with l e a d a n a l y s i s .
Qv
each sample i s s t o r e d a t the l a b .
A p o r t i o n of the m i n u s 80 mesh f r a c t i o n from
- 5 -
Background l e v e l s f o r the f o u r metals have p r e v i o u s l y been s t a t i s t i c a l l y
e s t a b l i s h e d on r e s u l t s of g r i d s o i l geochemical surveys c a r r i e d o u t by GJV o v e r
known m i n e r a l i z a t i o n a t D r i f t p i l e Creek.
Threshold
Value (ppm)
cu
Pb
Zn
Ag
Results a r e t a b u l a t e d below:
Moderately
Anomalous (ppm)
75
175
700
700
3000
0.6
2.5
Strongly
Anomal ous ( ppm)
150
300
3000
10000
5 .O
Copper anomalies a r e r a r e i n the a r e a , only minor copper values have been
recorded from known m i n e r a l i z a t i o n .
Lead geochemistry has proven t o be the
most valuable tool f o r both r e g i o n a l and d e t a i l e d e x p l o r a t i o n f o r s h a l e hosted
massive sulphide d e p o s i t s .
Lead d i s t r i b u t i o n i n both s o i l and s i l t i s n o t a s
e r r a t i c a s t h a t f o r zinc which has a h i g h mobility i n l o c a l l y a c i d ground waters.
Exotic z i n c s o i l geochemical anomalies r e s u l t i n g from d i s p e r s i o n i n a c i d springs
can range u p t o several p e r c e n t .
S i l v e r d i s t r i b u t i o n i s very e r r a t i c i n s o i l s
which over1 i e t h e Upper Devonian Gunsteel Formation.
Copper, l e a d , z i n c and s i l v e r geochemistry o f the Nobar, Thar, Canoe and
HiHo c l a i m group and surrounding a r e a i s shown on Figures 4 , 5 , 6 and 7, r e s p e c t i v e l y .
Copper.-values a r e low w i t h a few s c a t t e r e d , weakly anomalous values exceeding
t h e 75 ppm threshold value.
Lead s o i l assays a r e uniformly low w i t h maximum
values well w i t h i n background v a r i a t i o n expected f o r t h e a r e a .
Zinc response
i s g e n e r a l l y low although weak t o moderately anomalous values occur from a small
a r e a i n t h e s o u t h e a s t corner of the g r i d .
S i l v e r response i s e r r a t i c .
Scattered
single-sample anomalies a s h i g h a s 7.4 ppm probably r e s u l t from s u r f a c e enrichment
Irr
i n organic s o i l s .
- 6 -
*
Conclusions and Recommenda t i o n s
A s o i l geochemical survey was conducted over p a r t s of t h e Nobar a n d Thar
claims a t 50 m by 100 m sample spacing between June 1 and June 7 , 1981.
The
samples were analyzed f o r copper, l e a d , zinc and s i l v e r .
No copper or lead anomalies a r e p r e s e n t .
E r r a t i c , anomalous z i n c and s i l v e r
response i s n o t considered t o be economically s i g n i f i c a n t .
i s recommended f o r t h e a r e a sampled.
No f u r t h e r work
The remainder o f the claim block should
be sampled w i t h r e l a t i v e l y wide-spaced l i n e s t o determine whether o r n o t z i n c ,
lead or s i l v e r m i n e r a l i z a t i o n i s p r e s e n t in t h e underlying s h a l e s .
R e s p e c t f u l l y submitted,
ARCHER, CATHRO & ASSOCIATES (1981) LIMITED,
I
W
/jm
R.C.
Carne
APPENDIX I
STATEMENT OF OUALIFICATIONS
I , Robert C. Carne, g e o l o g i s t , w i t h b u s i n e s s and r e s i d e n t i a l a d d r e s s e s i n
Vancouver, British Columbia, hereby c e r t i f y t h a t :
1)
I graduated from the University o f British Columbia i n 1974 w i t h a B.Sc.
and i n 1979 w i t h an M.Sc. majoring i n
Geological S c i e n c e s .
2)
I am a member o f the G e o l o g i c a l A s s o c i a t i o n o f Canada.
3)
From 1974 t o the p r e s e n t I have been a c t i v e l y engaged a s a g e o l o g i s t i n
mineral e x p l o r a t i o n i n British Columbia and Yukon T e r r i t o r y .
4)
I have p e r s o n a l l y p a r t i c i p a t e d i n o r s u p e r v i s e d the f i e l d work r e p o r t e d
herein and have i n t e r p r e t e d a l l d a t a r e s u l t i n g from this work.
R o b e r t C. Carne
APPENDIX I 1
SUMMARY OF COSTS
on work performed on t h e
NOBAR, THAR, CANOE and HIHO CLAIM GROUP
between June 1 and June 7 , 1981
S a l a r i e s & Wages
rcJ
R.C. Carne ( G e o l o g i s t )
June 1 , 2 & 7
2 days 8 $230/day
6, Riehl ( J r . A s s ' t . )
June 1 , 2 , 3 , 5 , 7
5 days @ $86/day
430.00
M. Jovanovic ( J r . A s s ' t . )
June 1 , 5 , 7
3 days 8 $86/day
258.00
D. B i l l a r d (Sr. Ass't.)
June 1 , 2 , 3
3 days 8 $llO/day
330.00
L. Ramsay ( J r . Ass't.)
June 1 , 2 , 3 , 5
4 days 8 $10l/day
404.00
D. Oatman ( J r . Ass't.)
June 5,7
2 days @ $86/day
$
460.00
172 .OO
$2 ,054.00
Assays & Geochemical Analyses
Analyses of 150 s o i l samples f o r C u , Pb, Zn & Ag 8 $4 e a .
600.00
Camp Maintenance ( i n c l . f ixed-wing c o s t s )
19 mndays 8 $50/day
Helicopter (incl
. fuel
950.00
costs on s i t e )
Northern Mountain H e l i c o p t e r s L t d . , Bell J e t Ranger 206B
5.2 hours 8 $450/hr
Report Preparation ( 8 10%)
2 ,340.00
$5 ,944.00
556 .OO
$6,500.00