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INDATA GROUP ' A a
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--- O p e r a t o r : E a s t . f i e l d R e s o u r c e s Ltci.
GEOCHEMICAL S O I L SWPVEY AlND
MAGNETOMETER SURVEY ' A - 1 ' G R I D - -"-- - -__ --
S s e c i f i c C l a i m s I n v o l v e d : S c h n a p p s 1 $5962 ( 2 0 ) S c h n a p p s 2 t 5 6 9 3 i 2 0 ) Indi~ t : .~ . 1 # 8 1 3 5 ( 2 0 ) Iridio 3 #6397 ( 1 8 ) l n d i o #6294 ( 2 0 )
S p e c i f i c NTS L o c a - t i o n : 33N/6W
D a t e : Marcn, 1987 .
Table of Contents
General Geographical & Physiographical Position
Property Definition
Methods
Summary of Work Completed
Detailea Tecnnical Data & Interpretations
Itemized Cost Statement
Author Qualifications
Geochemical Certificates
Table of Geochemical Soil Results ('A-1' Grid)
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
List of Figures
Page 1
1
2
2
3
4
5
Appenaix
Appendix
General Location Map
Claim Map
Orientation Map
Au, As Soil Geochemistry
Ag, Cu Soil Geochemistry
Contoured Magnetometer Survey A-1 Grid
Magnetometer Survey Point Readings
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INDATA PROJECT SCMNAPPS , lNOl0 , INDATA CLAIMS
CLAIM MAP
EASTFIELD RESOURCES LTD
Claim Group
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INDATA PROJECT SCHNAPPS . INDIO . INDATA C L A I M S
ORIENTATION MAP
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- 1 -
General Geographical and Physiographical Position
The Indata group of claims is located. in North Central British Columbia approximately 125 kilometers northwest of Fort St. James, B. C. and 135 kilometers east northeast of Snithers, B. C. It is situated on the west side of Indata Lake at elevations varying between 875 and 1,250 meters (2,850 and 4 , 1 0 0 ft.). Terrain within the claims is generally moderately undulating except along a limestone ridge occupying the eastern side of the claims. The limestone ridge strikes northsou-ch and is expressed in a series of discontinuous cliffs, generally facing easterly.
The Indata Group of claims is accessible by boat continuing from the ena of a logging road at die northwest end of Tchentlo Lake. Alternatively the claims are accessible by helicopter.
Almost all of the claims are vegetated by mature spruce pine forest.
Soils occurring on rhe claims are predominantly Brunisolic types. Overburden is commonly 3 to 5 meters ueep.
ProDertv Definition
Geoloqv of rhe Indata Claim GrouD
Green coloured silicified volcanics (andesitic to dacitic tuffs, latite and andesitic flows) occur with intercalated volcaniclastic sediments (graywacke). The volcanic and volcaniclastic units are in apparent fault contact with massive blue-grey limestone (the fault trends northsouth). The volcanic package has been intruded by several phases of intrusive activity including diorite, quartz diorite and gabbro. The volcanics are pervasively amphibolized carbonatized and silicifiea. Felsic rocks, possibly representing acid volcanics, have been observed in scattered outcrops within the predominantly mafic volcanic terrain. The volcanic stratigraphy is believed to strike northnorthwest and dip steeply to the west. The volcanics and the limestone are believed to belong to the Paleozoic aged Cache Creek Group.
The fault contact, separating the volcanic package from limestone, has been locally intruded by serpentinite (believed to be responsible for aeromagnetic response) . Outcrop in tne vicinity of the fault contact is scarce with overburden commonly exceeding three meters in depth.
- - -_-__________ 'Aeronagnetic Map 5239G, The Geological Survey of Canada.
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Mineralization
Two types of mineralization nave been identified within the Indata Group of claims. Copper mineralization in the form of fine grained chalcopyrite, pyri-te and magnetite occurs in sub-concordant clusters within tuffaceous rocks. This type of mineralization, typically grading 0.1% to 0.2% in over wide intersections, was identified in 1985 in diamond drill holes AA DDH-1 and AA DDH-2 (Imperial Metals Corporation).
A second and less understood type of mineralization occurs at or near the limestone contact. This second type of mineralization, o n l y recently recognized, is evidenced by extremely high soil geocnemical concentrations of silver-gold-arsenic -antimony-bismuth and tellurium (kg to 690 p.p.m., Au to 2500 p.p.b., As to 110,000 p.p.m., Sb to 310 p.p.m., Bi to 68 p.p.m., Te to 5 p.p.m.). Overburden coverage is complete in the vicinity of tnis second type of mineralization and trencning or drilling will be required .to expose it.
Methods
Soil samples were collected from the B horizon generally from a 30 to 40 cm depth. Soil samples were then air dried and sent to Acme Analytical Labs in Vancouver for I.C.P. geochemical determinations (gold by AA). Laboratory methods used by Acme Analytical Labs for the Eastfield samples are outlined on the top of the geochemical certificates which are appendixed in this report. (For general interest, it is noted that Imperial Metals Corporation (1984) used similar methods in tneir determination while Noranda Explorations Ltd. (1986) used atomic absorption techniques in their analyses. )
The magnetometer survey was completed using a Scintrex MP-2 Proton Precession Magnetometer. A method of closed loops was used during the survey to enable corrections to be made for diurnal variations. Field results were then computer corrected and computer plotted.
Summary of Work C o m p l e t e d
A total of 65 aauitional soil samples were collected to detail an area originally sampled by Imperial Metals Corporation in 1984. This detailed area, originally the southeastern portion of the 'A" grid, is now referred to as the 'A-1' yrid. A magnetometer survey, 4.2 kms in extent, was completed on this grid using a Scintrex MP-2 Proton Precession Magnetometer. All work completed was within the Schnapps #1 mineral claim.
- 3 -
Detailed Technical Data and Interpretations
Soil Survey
A summary of Khe various soil sample results (Imperial Metals Corporation 1984, Noranda Explorations Ltd. 1986 and Eastfield Resources Ltd. 1987) is included in this report as a table along with a composite soil arsenic-gold map (Figure 4) and a composite soil copper-silver map (Figure 5). It can be noted that a very strong arsenic-gold-silver-copper soil anomaly trends in a north by northeasterly airection through chis grid.
This anomaly is long and sinuous and has a north by northeast trend for more than 200 meters. (This anomaly is additionally anomalous in antimony, bismuth and tellurium.)
Magnetometer Survey
A contoured map plot of tne magnetometer survey (Figure 6) and a point plot of the individual s-tations wiizh their obtained readings (Figure 7) is included in this report. An increase in total field magnetic response towards the northeast is noted. A magnetic low, centered at OON 2 8 5 E , is believed to correspond to a well altered intrusive tha-t occurs in -chis area. (Primary magnetite may have been destroyed during alteration and be responsible for the resulting magnetic low. )
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SOIL GEOCHEMISTRY
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- 4 -
Itemized Cost Statement
costs:
Hel i cop te r - 7 h r s
G e o c h e m i c a l A n a l y t i c a l - 6 5 samples
Manpower - J a n u a r y 1 0 t o 1 7 , M o r t o n , 7 days (3 $ 2 0 0 M a c k e n z i e , 7 days @ $ 1 2 0 G r e e n , 7 days @ $ 1 2 0
R o o m a n d Board - 2 1 man days @ $50
V e h i c l e - 3 , 7 0 0 km @ $0 .25 /km
Repor t P r e p a r a t i o n
T o t a l
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- 5 -
Author's Qualifications
I , JAMES WILLIAM MORTON, CERTIFY THE FOLLOWING:
I g r a d u a t e d f rom C a r l e t o n U n i v e r s i t y , O t t a w a , i n 1 9 7 1 w i t h a B a c h e l o r of S c i e n c e i n Geology.
I g r a d u a t e d f rom t h e U n i v e r s i t y o f B r i t i s h Columbia , Vancouver , i n 1976 w i t h a Master o f S c i e n c e i n S o i l S c i e n c e .
I h a v e worked f o r v a r i o u s m i n i n g a n d e x p l o r a t i o n compan ies s i n c e 1 9 6 9 .
I s u p e r v i s e d a l l o f t h e work d e s c r i b e d i n t h i s r epor t .
G e o l o g i s t
I N D A T A LAKE P R O J E C T
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ACME M L Y T I C A L LABORATORIES LTD. DATE RECEIVED: JAN 26 1987 852 E.HCISTINtS ST.VANCOUVER B.C. V6A 1R6 .'HONE 253-3158 DATA LINE 251-1011 DATE REPORT MCIILED:
GEOCHEMICCbL I C P nNALYSIS
,540 6fiAH SAHPLE IS DI6ESTED WITH 3ML 3-1-2 HCL-HNO3-HZO AT ?5 DE6. C FOR ONE HOUR AND IS DILUTED TO 10 HL WITH HATER. THIS LEACH IS PARTIAL FOR HN.FE.CA.P.CR.H6.BI.TI.B.AL.NA.K.W.SI.ZR,CE.SN.Y.NB AND TA. AU DETECTION L I H I T BY I C P IS 3 PPII. - SAtlPLE TYPE: SOILS -35HESH b+lLVEBJZIN6 AUl ANALYSIS BY AA FROH 10 6RAH SAHPLE. H6 ANALYSIS BY FLMLESS AA.