INDUCED POLAXIZAT ION SURVEY OX BEHALF OF CANWAY
Transcription
INDUCED POLAXIZAT ION SURVEY OX BEHALF OF CANWAY
INDUCED POLAXIZAT I O N SURVEY OX BEHALF OF CANWAY EWLOMTIONS LTD. ,, . . c - . AUTHOR: Glen E. W h i t e , B.Sc., Geophysicist STAN, SKULL a n d I b I C m i n e r a l c l a i m s , 1 5 m i l e s N-100 P I E House, 3. C , C l i n t o n Mining D i v i s i o n . Lat. 5 1 ° 4 9 ' ~ Long. 121°12'W N.T.S. 92 P 1 4 P. ENG: E. Cruz DATE OF WORK: Tilay 6-10, 1974 DATii OP IGPOXI!: J u n e 6 , 1 9 7 4 C O N T E N T S ..................................... 1 Property ........................................ 1 Location and Access .............................. 1 General Geology ................................. 1 Introduction Survey Specifications ......................... (2) Induced Polarization System ............. (3) Survey Grid ............ ...... ...... ... Discussion of Xesults ............................ Conclusions and Recommendations .................. Statement of Qualifications ...................... Instrument Specifications ........................ Certificate - E . D . Cruz ........................ . (1) Electrode Array 2 2 2 2 - 3 3 4 5 6 Illustrations #/ Figure 1 2 . + & -' . d ' .Location .Induced and Claims Nap Polarization .Chargeability 3 .Induced Polarization .Apparent Resistivity CANWAY EXPLORATIONS SKULL,STAN,MAC CLAIMS LOCATION AND CLAIMS ION MAP 1 " . 4 0 MILES APPROX LTD. MAP CLAIMS MAP 1/2" = 1500 APPROX INTRODUCT ION From May 6 t o May 1 0 , 1974, Glen E. White Geopliysical C o n s u l t i n g and S e r v i c e s L t d . conducted on b e h a l f of Canway E x p l o r a t i o n s L t d . a l i m i t e d program of induced p o l a r i z a t i o n s u r v e y i n g on t h e S t a n , S k u l l and Fiat m i n e r a l c l a i m s , 1 0 0 Tiile House a r e a , C l i n t o n K i n i n g D i v i s i o n , B.C. The s u r v e y w a s conducted t o v a l i d a t e a c h a r g e a b i l i t y anomaly d e t e c t e d w i t h a u n i t p u l s e t y p e I.P. i n 1969. The data w a s then correlated with t h e chargeability data obtained around t h e "Beaver Dam1' showing t o t r y and d e l i n e a t e a n y regional chargeability trends. PROPERTY The induced p o l a r i z a t i o n s u r v e y was conducted o v e r p o r t i o n s of m i n e r a l c l a i m s S k u l l 7-10, S t a n 3-6 a n d Ekc 3-6 as i l l u s t r a t e d i n F i g u r e 1. LOCATICES AILTD ACCESS The S k u l l , Mac and S t a n m i n e r a l c l a i m s a r e l o c a t e d some 4 m i l e s w e s t of t h e v i l l a g e of F o r e s t Grove, B.C. L a t i t u d e 51°49'N, L o n g i t u d e 121°12 ' ! I , fi.T. S. 92 P14 F a c i l e a c c e s s t o t h e p r o p e r t y i s by an o l d l o g g i n g r o a d which i n t e r s e c t s t h e highway t o F o r e s t Grove a b o u t one m i l e s o u t h of t h e town. GENEUL - GEOLOGY G e o l o g i c a l Fiap S o n a p a r t e R i v e r 3-1966 shows t h e c l a i m group t o be u n d e r l a i n by u p p e r T r i a s s i c o r l o w e r J u r a s s i c H o r n b l e n d e - b i o t i t e , quartz d i o r i t e . A u g i t e a n d e s i t e flows, a l - g i l l i t e s , g r e p ~ a c k e sand l i r ~ ~ e s t o nof e t h e N i c o l a group, T r i a s s i c i n a g e , lie i m e d i a t e l y s o u t h and s o u t h w e s t of t h e s u r v e y a r e a . Copper m i n e r a l i z a t i o n has been found i n c h l o r i t i c a l t e r e d and potassium-feldspar enriched f r a c t u r e s in the diorite. Electrode Array The d a t a was obtained using t h e Wenner a r r a y . This a r r a y c o n s i s t s of two outside c u r r e n t s t a k e s and C1 and C2 and two i n s i d e p o t e n t i a l e l e c t r o d e s PI and P2 which a r e spaced equal d i s t a n c e a p a r t , known a s t h e "af1 spacing, and moved t o g e t h e r along a t r a v e r s e l i n e . A 300 f o o t !'au spacing was used f o r t h i s survey. Induced P o l a r i z a t i o n System A time domain Suntec FX I11 r e c e i v e r and a LOP0 t r a n s m i t t e r were used f o r t h i s survey. The d a t a recorded i n t h e f i e l d c o n s i s t e d of t h e c u r r e n t ( I ) flowing through e l e c t r o d e s C 1 and C2, t h e primary voltage (Vp) appearing between e l e c t r o d e s PI and P2 during t h e c u r r e n t on p a r t of t h e cycle and f o u r s e p e n t s , $1 , T.12, X3, and 114, i n during t h e c u r r e n t percent of t h e secondary voltage o f f . A continuous cycle time of 4 seconds was used w i t h approximztely 1.5 seconds on and 0.5 off w i t h t h e c u r r e n t t h e n r e v e r s i n g i n p o l a r i t y t o complete t h e cycle u n t i l s t a b l e readings were obtained. A period of 20 a s e c . and a delay time of 1 5 msec. were used. The f o u r :? f a c t o r s were then numerically surmed t o o b t a i n t h e a r e a under t h e decay curve i n milliseconds. t~,) Survey G r i d Some 5.5 l i n e miles of surveying were completed a c r o s s f o u r Horth-South d i r e c t e d l i n e s A-D and along t h e o l d logging roads which c r i s s - c r o s s t h e a r e a of i n t e r e s t . DISCUSSIOI: OF RXSULTS The c h a r g e a b i l i t y d a t a i s shown on F i p r e 2 and t h e apparent r e s i s t i v i t y on Figure 3 a t a s c a l e of 1" = 1000'. For c o n t i n u i t y t h e r e s u l t s of t h i s survey a r e shown along w i t h t h e d a t a f r o m t h e 1972 Induced P o l a r i z a t i o n program. The resistivity data shovrs moderate changes which in general can be attributed to variations in the physical characteristics of the overburden and depth to bedrock. The chargeability data shows a small anomaly on line A which reached a maximum of 7.4 milliseconds. This anomly is supported by readings taken along line D and the logging road. Line A tends to follow a northwest directed topographic depression which may represent a mineralized structural zone, since the chargeability values along it are biased to the anomalous side. If this is the case, it would agree with chargeability data near the Beaver Dam showing which is biased in a northwest-southeast direction. During the early part of Nay 1974, a limited amount of induced polarization surveying was conducted over the Stan, Skull and Xac mineral claims on behalf of Canway Explorations Ltd. The survey detected a zone of anomalous chargeabilities which confirmed the anomaly obtained in 1969 with the unit pulse I.?. systen. Since there is no apparent outcrop in the area, possibly a limited amount of further induced polarization surveying should be conducted to try and extend the anomlous chargeability zone such that it would warrent diamond drilling. Respectfully submitted, GLXN E. IvXITE GZGPIIYSICAL COflSULT IliG AUD SERVICES LTD. GlenE.White B.Sc. Geophysicist STATEIllEKT OF QUALIFICATIONS Name : WHITE, Glen E. Profession: Geophysicist Education: B.Sc. Geophysics Geology University of British Columbia - Professional Associations: Associate member of Society of Exploration Geophysicists. Active member B.C. Society of Kining Geophysicists. Experience: Pre-Graduate experience in Geology Geochemistry Geophysics with Anaconda American Brass. - Two years Mining Geophysicist with Sulmac Explorations Ltd. and Airborne Geophysics with Spartan Air Services Ltd. One year Aining Geophysicist and Technical Sales Planager in the Pacific north-west for W. P. NcGill and Associates. Two years Bining Geophysicist and supervisor Airborne and Ground Geophysical Divisions, with Geo-S Surveys Ltd. Two years Chief Geophysicist Tri-Con Exploration Surveys L t d . Three years Consulting Geophysicist. Active experience in all Geologic provinces of Canada. A P P E F D I X Instrument Specifications A. Induced Polarization Receiver - Huntec 1.X I11 tine domain volts (2) Sensitivity - Vp 10-2 to (1) Type Vp ( 3 ) Range - (5) M Factor (7) Size B. - 10- to 10 volts li,: resolution 0.1$ resolution to 10 volts 30 x (4) Self Potential (6) Power -= - -f 1 volt 0,155 - Rechargeable 0.7 ampere at 12 volts batteries - 16" x 9" x 5 3/4" Induced Polarization Transmitter (1) Type - Huntec LOP0 I{-3 (2) Maximum Current - ( 3 ) Kaximum Voltage - 1,800 V D.C. (4) Load Power - (5 ) Load Curmnt (6) Cycle Time 1.5 A D.C. 160 watts - O 75$ efficiency Continuously ad justable - 2, 4, 8 or16 seconds C E R T I F I C A T E I, E r n e s t o D. Cruz, DO HEIDBY CERTIFY AS POLLOVS: (1) That I a m a Consulting Mining Engineer and r e s i d e a t 8596 Terrace D r . , D e l t a , B.C. (2) That I a m a Graduate of Mapua I n s t i t u t e of Technology P h i l l i p i n e s (B.A.sc.) and U n i v e r s i t y of Washington ( L ASc . ) i n t h e F a c u l t y of Xining Engineering. (3) That I a m a r e g i s t e r e d P. BNG i n t h e A s s o c i a t i o n of P r o f e s s i o n a l Bngineers i n t h e province of B r i t i s h Columbia. (4) That I have p r a c t i s e d g e o l o g i c a l engineering f o r e l e v e n (11) y e a r s . . (5) That I have reviewed a r e p o r t d a t e d June 6, 1974 based on work conducted by Glen E. White Geophysical Consulting and S e r v i c e s Ltd. under t h e s u p e r v i s i o n cf Glen E . V h i t e , B.Sc., Geophysicist, and concur w i t h the findings therein. (6) That t h i s r e p o r t c o n s i s t s of 6 t y p e w r i t t e n pages and two maps. (7) That I have no i n t e r e s t d i r e c t l y o r i n d i r e c t l y i n t h e S t a n , S k u l l o r Pkc mineral claims o r t h e s e c u r i t i e s of Canway E x p l o r a t i o n s Ltd. n o r do I expect t o a c q u i r e o r r e c e i v e any. DATED a t ~ a n c o u v e r ,B r i t i s h Columbia, t h i s 6 t h day of June, 1974. P. ENG rj~;ki!?;IOS O F CANADA: I <fez, J?* P R ~ v ~ x Oc F~ !3~1TISii : C O I - I . ~ . S '~ ~ ~3x1 ~ , I .?,i,i? ~ d " , L . d i To WIT: of f ' 4 ' > 1nd.uced Polariza.tj.on Survey Sku.11, S t d f ~ .<%.I #.:1! ?.7-- r(2 ,%ir::s Can.?nlay Z x p l o r a t ions Ltd, in the Province of British Columbia, do so1em;ily daclare that f o r the above the costS s u r v e y were as f o l l o w s : ~ s o m e l - Date Total --- \qae ........P?ay 6-10, 1974. .......875/day. .......S450.00 C . Ashwortil. .... ....... .*.........$65/day. .......$390.00 .........$45/day.. .....s$270.00 R. Schmirl. ...... ... M. Bell. .Ii .ll .'I.. .lt. 0 , , ........$270.09 system 63 850/day ...............ZjSOO.00 A. Smith . . . . . . . . f t . . . . . . . . t i . . . . . . . . . , . $ 4 5 / Instrtment lease I.P. Meals and Accomodations 4 men day $2014day........,..,.eI$480.0C) .,,....... ~--.-L U L , . O O Vehicie l e a s e 4x4 inclu-ding gas GJ * $ ~ ~ ; ( l d y , . ?h Glen E. White Geophysicist-. I n t e r p r e t a t i o n , and Report .....,.....................,......$ Total........ 200.00 [email protected] And f make this solemn declaration conscientiously beiizving i t to be true, and knowing that it is of the same force and ellest as if made :indcr oath and by virtue of the '6 day of , Canada Evidence Act." I I , in the I I>cclaiad b c i ~ r cme at thc Province of Srltish Columbia, this " /"' I I /Yw /' , A.D. J fl J j, / / 2 SUEE mbhg R e ~ d e r _ ffi.lc,,.i:s Co, {rnisr;o/lt,r f o r rckiri .................... : .............. J'$,A.~~~~iri .9,:/,!;::O / ? J /j )or I/,C /*.~r Fr ;if.> ;r Cli!m??7!14rr~------..---- Pro;~i,:::c~f Gr;:,.~l! C0!((!?11>:i7. -.--. 7