ed
883
o l a r Ri ze ap to iro /R
istivity
urvey
-
TITLE
S p o u t Lake P r o p e r t y
C e n t r a l G r i d of t h e WC C l a i m s
AUTHORS
G.M. Leary, G.M. D e P a o l i and
J.F. A l l a n , P.Eng. ( B . C . )
DATE
July 1 9 7 2
COMMODITY
cu
LOCATION-Area
Lac La H a c h e
-Mining D i v i s i o n
Clinton
-Coordinates
Latitude 51°58'N,
9 2 P/14, 9 3 A / 3
-NTS
Longitude 1 2 1 " 2 2 ' W
AMAX V a n c o u v e r O f f i c e
3%
NO...........
I
.........
:
MAP............................................
I
TABLE
-
APPENDIX I
-
O F ' CONTENTS
G t a t e m e n t of C o s t s
I O .
i
ILLUSTRATIONS
c
1
SUMMARY
The " c e n t r a l g r i d " on the WC c l a i m s i s l o c a t e d w i t h i n
t h e I n t e r i o r P l a t e a u i n t h e s o u t h e a s t s i d e of Spout Lake 1 4 a i r m i l e s n o r t h of Lac La Hache, B.C.
I n 1 9 7 2 , a n induced p o l a r i -
z a t i o n s u r v e y t o t a l l i n g 7 3 m i l e s was conducted o v e r two of t h e
known copper showings w i t h i n t h e g r i d a r e a .
The p r o p e r t y r e g i o n a l l y o c c u r s w i t h i n a b e l t of Nicola.
Group r o c k s i n t r u d e d b y s e v e r a l b o d i e s of d i o r i t e t o monzonite.
The g r i d a r e a c o v e r s a n o r t h e a s t e r l y d i p p i n g sequence of N i c o l a
b a s a l t f l o w s o v e r l a i n by b r e c c i a s , t u f f s and v o l c a n i c s e d i m e n t s .
Three s k a r n - t y p e copper showings o c c u r w i t h i n the g r i d a r e a .
Showings a r e c h a r a c t e r i z e d by r e p l a c e m e n t b o d i e s of m a g n e t i t e c h a l c o p y r i t e - p y r i t e a s s o c i a t e d w i t h t o u r m a l i n e , c a l c i t e and l i m e
s i l i c a t e minerals.
2
INTRODUCTION
The WC c l a i m s a r e l o c a t e d w i t h i n t h e I n t e r i o r P l a t e a u
14 a i r m i l e s n o r t h of Lac: La Hache on t h e n o r t h w e s t and s o u t h e a s t
s i d e s of Spout Lake ( F i g u r e s 1, 2 and 3 ) .
a c c e s s i b l e by secondary roads.
Claims a r e r e a d i l y
This r e p o r t covers t h e r e s u l t s
of a n induced p o l a r i z a t i o n s u r v e y c a r r i e d o u t from June 14 t o 18,
1972, on p a r t s of t h e " c e n t r a l g r i d " l y i n g on t h e s o u t h e a s t s i d e
o f Spout Lake,
The s u r v e y was c a r r i e d o u t o v e r known c o p p e r
showings.
Topography of t h e " c e n t r a l g r i d " a r e a c o n s i s t s o f a few
rounded h i l l s up t o 4000 f e e t a l t i t u d e s e p a r a t e d b y low l y i n g
r e l a t i v e l y - f l a t ground g e n t l y d i p p i n g towards Spout Lake t o t h e
n o r t h a t an a l t i t u d e o f 3 5 0 0 f e e t .
Swamps and marshy ground
l o c a l l y o c c u r i n t h e e a s t e r n p o r t i o n of t h e g r i d a r e a m a i n l y
a d j a c e n t a n o r t h e r l y flowing stream.
V e g e t a t i o n v a r i e s from open
s t a n d s of j a c k p i n e on h i l l t o p s t o s m a l l t h i c k j a c k p i n e and
0
d e c i d u o u s t r e e s i n low l y i n g a r e a s .
The induced p o l a r i z a t i o n s u r v e y is t o be a p p l i e d t o one
y e a r s a s s e s s m e n t t o e a c h of t h e f o l l o w i n g c l a i m s ( F i g u r e 2 ) .
Claim Names
WC
WC
WC
WC
816-23 i n c l .
#26
#31-40 i n c l .
#45-52 i n c l .
Record Numbers
26586-26593 i n c l .
26536
26599-26608 i n c l .
26771-26778 i n c l .
Anniversary Dates
J u l y 5,
July 5,
J u l y 5,
J u l y 22,
1974
1974
1974
1374
PROPERTY GEOLOGY
P r o p e r t y g e o l o g y i s o n l y b r i e f l y d i s c u s s e d s i n c e it was
d e s c r i b e d i n a n e a r l i e r a s s e s s m e n t r e p o r t ( i . e . 1971 Geochemical
and G e o p h y s i c a l R e p o r t on t h e Spout Lake Cu p r o p e r t y b y
C.J.
Hodgson and G.M. DeE'aoli).
The " c e n t r a l g r i d " a r e a i s u n d e r l a i n b y a m o d e r a t e l y t o
s t e e p l y northeast-dipping
/\
sequence of N i c o l a r o c k s comprised of a
" l o w e r u n i t " of a u g i t e b z s a l t flows and a n " u p p e r u n i t ' ' of i n t e r bedded a u g i t e b a s a l t flows, v o l c a n i c s a n d s t o n e , greywacke, t h i n l y
t
3883
NO. ...
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...........
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.............................
CANAIIA
m*.nEW,a
M I N I AND TECHNICAL SVRVfYS
9J""m.
BRITISH
1"D " A m *
UAWW
COLUMBIA
128
I
r--I
127
+
-jr
I01
I
102
I
112
I
Ill
120
GROUP
2
-
'30
121
-
I32
--
I
37
I
3
8
I
UL-
1
--
CANADIAN
CARIB00
CLINTON
SUPERIOR
-Y
1L-,,,,.3j8.3 F2
GROUP
I
1
I
r
1
I
83
81
79
II
80
1
1
Ic--I
I
7i
72
B
I
C.GUNN
I49
GROUP
4
CORANEX
............
__
151
'
153
BETHLEHEM
_-
\
-
- .
i
---I
s-- - - - - r - T - - - T
I
1
161
I
- t -j-
I
150
152
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.A
:?: ?." .............................
.......".
.____-____L.
AMAX
rI
165
163
-t
.-
154
156
160
162
164
SPOUT
1
.-I--
L
PROPERTY
N S - B R I T I S H COLUMBIA
C L A I M MAP
I
1
LT D.
C L I N T O N AND C A R I B 0 0 M I
1
j----i
I
I ,
148
. .--
.'& 4
//
--
47
BETHLEHEM
I \ . * . .
.
.L-
II
SCALE
-
I"= 1 / 2 m i l e
J
ro
I
I
accompany r e p o r t
S P ~ r
U L A K E PROPERTY
GMDePaoli, G M L e a r y , J F A l l o n
'I
"
by
I9 72
c
- L E G E N D
Q UATER NARY
Glacial deposits and alluvium.
JURASSIC
TAKOMKANE BAJHOLITH - Basic
t 0 acid granitic racks.
TERTIARY
Plaleau hasalts.
U P P E R TRIASSIC
1 7 1
KAMLOOPS GROUP -Basic to acid
volcanic r a c k s .
AMAX
m-3
SPOUT
POTASH
CLINTON
AND
CARIB00
REGIONAL
SCALE'
MINING
JURASSIC
NICOLA GROUP - Yalcanic and
sedimentary rocks.
LIMITED
PROPERTY
LAKE
W C
- LOWER
CLAIMS
DIVISIONS
-
BRITISH
GEOLOGICAL
I
:
COLUMBIA
MAP
250,000
H. P
N.iT S. R e f
92 P 14, 93 A 3
FIG. 3
1 ,,..3F3.213#3
-
............ MA? .......................................
I
3
bedded a r g i l l i t e and limy a r g i l l i t e , t u f f s and breccia.
Three s k a r n - t y p e copper showings are p r e s e n t w i t h i n t h e
grid area.
They c o n s i s t o f c h a l c o p y r i t e - m a g n e t i t e - p y r i t e
m i n e r a l i z e d h o r i z o n s w i t h i n t h e " u p p e r u n i t " or w i t h i n r o c k s
i n t e r b e d d e d w i t h t h e "lower u n i t " t h a t a r e s i m i l a r t o t h o s e of
the " u p p e r u n i t " .
Calcite,
t o u r m a l i n e and s e v e r a l l i m e s i l i c a t e
minerals are' associated w i t h mineralized horizons.
The best showing w i t h i n the g r i d a r e a o c c u r s w i t h i n
c l a i m s WC # 2 4 and #26.
H e r e , minor s u l p h i d e s o c c u r t h r o u g h o u t
a n o r t h - s o u t h t r e n d i n g zone measuring up t o 1000 f e e t w i d e and
2200 f e e t long.
breccias.
Sulphides mainly occur i n skarned l i m y b a s a l t i c
Higher g r a d e m a g n e t i t e - r i c h b e d s o c c u r l o c a l l y w i t h i n
the m i n e r a l i z e d zone.
Minor s u l p h i d e s , i n c l u d i n g p y r i t e , p y r r h o t i t e and c h a l c o p y r i t e w i t h associated magnetite, occur disseminated i n t h i n l y
bedded a r g i l l i t e and l i m e s i l i c a t e s o v e r a 400 f o o t s q u a r e a r e a
w i t h i n c l a i m s WC #48 and #50 i n t h e s o u t h e a s t e r n p o r t i o n of the
grid.
Also,
a n o t h e r s m a l l showing of l i m i t e d e x t e n t o c c u r s
i n s k a r n e d limy b a s a l t i c breccia i n the n o r t h w e s t e r n p o r t i o n of
t h e g r i d on WC #10 and H12.
4
INDUCED POLARIZATION/RESISTIVITY
SURVEY
I n t r o d u c t i o n and Theory
During t h e p e r i o d June 1 4 t o J u n e 18, 1972 a p p r o x i m a t e l y
7.5 l i n e m i l e s of induced polarization/resistivity
s u r v e y i n g was
completed on t h e " c e n t r a l g r i d " o f t h e WC c l a i m s .
The surveyed
a r e a encompasses copper showings exposed on c l a i m s WC #24 and # 2 6
i n t h e n o r t h - c e n t r a l p o r t i o n of the g r i d and on WC #48 and H50 t o
the s o u t h e a s t .
G.M.
The s u r v e y was e x e c u t e d b y AMAX p e r s o n n e l w i t h
DePaoli o p e r a t i n g t h e r e c e i v e r .
A dipole-dipole
configuration
was employed u t i l i z i n g a two hundred f o o t d i p o l e l e n g t h and r e a d i n g
o n l y the f i r s t s e p a r a t i o n ( a = 200 f e e t , n = 1).
The t e r m induced p o l a r i z a t i o n means e l e c t r i c a l p o l a r i z a t i o n ( i . e . s e p a r a t i o n of c h a r g e s ) induced b y a n a p p l i e d e l e c t r i c
field.
The c a u s e of t h i s p o l a r i z a t i o n i s changes i n the m o b i l i t i e s
of i o n s w i t h i n a rock.
A t the i n t e r f a c e s b e t w e e n z o n e s of
d i f f e r e n t m o b i l i t i e s , e x c e s s e s or d e f i c i e n c e s of i o n s o c c u r ; the
c o n c e n t r a t i o n g r a d i e n t s d e v e l o p e d oppose the c u r r e n t f l o w and
cause a p o l a r i z i n g e f f e c t .
When m i n e r a l g r a i n s b l o c k t h e p o r e
p a s s a g e s of r o c k s and a c u r r e n t i s a p p l i e d , a c o n c e n t r a t i o n o f
i o n s b u i l d s up a t the e l e c t r o l y t e ( w a t e r ) - m e t a l i n t e r f a c e w h i l e
a w a i t i n g a n e l e c t r o c h e m i c a l r e a c t i o n which must o c c u r b e f o r e t h e
e l e c t r i c c h a r g e c a n be t r a n s f e r r e d from a n i o n i n the e l e c t r o l y t e
t o a f r e e e l e c t r o n i n the m e t a l .
energy a t an e l e c t r o l y t e - m e t a l
This s t o r a g e of e l e c t r o c h e m i c a l
i n t e r f a c e i s t h e most i m p o r t a n t
c a u s e o f induced p o l a r i z a t i o n i n r o c k s .
I n the p u l s e - t r a n s i e n t o r t i m e domain method t h a t was
employed,
t h e i n t e r f a c e s w i t h i n t h e rock w e r e p o l a r i z e d b y
applying a steady direct c u r r e n t .
The c u r r e n t was t h e n a b r u p t l y
t e r m i n a t e d and measurement was made of t h e s m a l l d e c a y i n g v o l t a g e
caused by the p o l a r i z e d charges r e t u r n i n g t o e q u i l i b r i u m .
I n s t r u m e n t and P r o c e d u r e
AMAX's p o r t a b l e i n d u c e d p o l a r i z a t i o n u n i t was used f o r
5
t h e survey.
The equipment c o n s i s t s of t h e IPR-7 Newmont-type
r e c e i v e r ( 1 5 pounds) and t h e I P C - 7
m i t t e r (13 pounds).
2 5 w a t t b a t t e r y powered t r a n s -
The r e c e i v i n g d i p o l e c o n s i s t e d of a 200 f o o t
l e n g t h of w i r e c o n n e c t e d t o p o r o u s p o t s f i l l e d w i t h a s a t u r a t e d
s o l u t i o n of CUSO
The t . r a n s m i t t i n g d i p o l e employed a 200 f o o t
4'
length of w i r e connecting four f o o t s t a i n l e s s s t e e l rock e l e c t r o d e s .
Survey p r o c e d u r e r e q u i r e d f o u r men equi-spaced 200 f e e t
a p a r t along t h e l i n e .
The advance man p r e p a r e d t h e e l e c t r o d e
s i t e f o r t h e lead p o t e n t i a l e l e c t r o d e by digging a small hole.
When moving t h e a r r a y the l e a d man advanced the p o t e n t i a l d i p o l e
w i r e two hundred f e e t .
'I!he second man o p e r a t e d t h e r e c e i v e r .
He
n o r m a l l y s i t u a t e d h i s electrode i n the same s i t e the lead man
prepared.
Because d i s t a n c e p e r m i t s , t h e r e c e i v e r o p e r a t o r s i g n a l s
moves and t r a n s m i t t e r "on" p e r i o d s by voice.
o p e r a t e s the t r a n s m i t t e r .
The t h i r d man
He e s t a b l i s h e s h i s c u r r e n t electrode
and a d v a n c e s t h e 2 0 0 f o o t c u r r e n t d i p o l e w i r e .
p r e p a r e s the second c u r r e n t e l e c t r o d e s i t e .
The t r a i l i n g man
Using v i c e g r i p p l i e r s
the l a s t two " c u r r e n t " men r e t r a c t t h e s t a i n l e s s s t e e l r o d s t h e y
have hammered i n t o the ground and r e - u s e t h e m on t h e n e x t s e t - u p .
R e s u l t s and D i s c u s s i The c h a r g e a b i l i t y i n m i l l i s e c o n d s and t h e r e s i s t i v i t y
i n ohm-meters h a v e been p l o t t e d and c o n t o u r e d i n p l a n view a s
p r e s e n t e d on F i g u r e s 4 and 5 r e s p e c t i v e l y .
T h e c h a r g e a b i l i t y map o u t l i n e s two s m a l l p o l a r i z a b l e
bodies.
The n o r t h e r n most body c e n t e r e d around s t a t i o n 8 S , 8E,
y i e l d i n g t h e h i g h e s t response ( 4 2 m i l l i s e c o n d s ) .
P i c k i n g the
20 m i l l i s e c o n d c o n t o u r a s b e i n g s i g n i f i c a n t t h i s body h a s a n
extension trending southeast.
The s o u t h e r n most body i s more
e q u i - d i m e n s i o n a l i n shape and i s centered a b o u t c o o r d i n a t e s 22.5,
153.
These c h a r g e a b i l i t y a n o m a l i e s a s d e f i n e d by t h e 20 m i l l i -
second c o n t o u r g e n e r a l l y i n d i c a t e 1s t o 29/0 m e t a l l i c a l l y
p o l a r i z a b l e m a t e r i a l b y volume.
Mineralization evident i n
6
outcrop in the vicinity of 5 0 S , 48E did not yield a chargeability
cclr
response above background.
AMAX Vancouver O f f ice
G.M.
Leary
G.M.
DePaoli
APPENDIX I
w
STATEMENT OF COSTS
Claim Name WC #16-23 inclusive Record Number 26586-26593 inclusive
#26
26596
#31-40 inclusive
26599- 26608
#45-52 inclusive
26771-26778
Period of Work June 14
-
18, 1972
Summary of Work Line Refurbishing - 8.8 line miles
Induced Polarization Survey
7.5 line miles
-
Personnel and Salaries
G.M. Leary, M.Sc.Geologist I/C, 601-535 Thurlow Street, Vancouver,B.C
$ 108.72
2 days 0 $54.36/day
G.M. DePaoli, B.Sc.Geophysicist, 601-535 Thurlow St.,Vancouver, E.C.
5 days @ $51.21/day
256.05
M . J . Meneghetti, Jr.Assistant, 247 West 2nd, North Vancouver, B.C.
5 days @ $15.60/day
78.00
G . C . Stock, Jr.Assistant, 1725 i J 16th, Vancouver, B.C.
5 days @ $22,53/day
112.65
E.A. Antoniuk, Jr.Assistant, 6311 Denhigh Ave., S.Burnaby, B.C.
5 days @ $30.00/day
150.00
b
Packsack Drillinq (7/8" diameter core)
36 feet (3 $7.50/day
270.00
Line Refurbishinq
8.8 miles@ $170.00/line mile
1,496.00
Board
-
Vehicle
22 man days@ $10.00/day
220.00
-
100.00
5 days @ $20.00/day
Report Preparation and Drafting
This work is to be applied f o r one year on
WC
WC
WC
WC
#16-23 inclusive
$26
#31-40 inclusive
#45-52 inclusive
b
200.00
w'
Tu'
*ov;i;c~!uf Eritisli C'c,lumhin. this
ly
of
//f7&,
2c;b -[Vii ning
A.C.
Recorder,