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File Created: 21-Oct-1986 by Larry Jones (LDJ)
Last Edit:  10-Aug-1989 by Laura L. Duffett (LLD)

Summary Help Help

NMI 103I16 Ag4
Name WINDFALL Mining Division Omineca
BCGS Map 103I098
Status Showing NTS Map 103I16W
Latitude 054º 56' 24'' UTM 09 (NAD 83)
Longitude 128º 25' 51'' Northing 6088263
Easting 536463
Commodities Silver, Lead, Zinc, Copper, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Bowser Lake
Capsule Geology

A quartz vein containing sphalerite, galena, chalcopyrite and pyrite occurs at the crest of a small anticline in argillites of the Jurassic to Cretaceous Bowser Lake Group. The vein, striking 110 degrees and dipping 45 degrees south, is 1.0 to 1.5 metres wide and about 12 metres long. It is cut off to the north by an east striking, 45 degree north dipping fault. A 1.5 metre sample assayed 240 grams per tonne silver, 7.2 per cent lead, 24 per cent zinc, 0.9 per cent copper and 0.34 grams per tonne gold (Minister of Mines Annual Report 1931). Thirty metres to the north, a 3 to 12 metre wide feldspar porphyry sill strikes 120 degrees and dips 15 degrees north.

Bibliography
EMPR AR 1931-71,72,79
EMPR MAP 69-1; 8
GSC MAP 11-1956; 1136A; 278A; 1385A
GSC MEM *212, pp. 47-49; 329, pp. 93,94
GSC P *36-20, pp. 52,53; 36-17
EMPR PFD 672422

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