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File Created: 11-Aug-1986 by Larry Jones (LDJ)
Last Edit:  03-May-2007 by Nicole Robinson (NR)

Summary Help Help

Name BANK Mining Division Skeena
BCGS Map 103H031
Status Showing NTS Map 103H05W
Latitude 053º 19' 29'' UTM 09 (NAD 83)
Longitude 129º 58' 01'' Northing 5908830
Easting 435597
Commodities Gold, Lead, Zinc, Copper Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

Banks Island lies along the western edge of the Coast Plutonic Complex characterized by northwest trending granitic bodies, mainly granodiorite-quartz monzonite and quartz diorite which are separated by narrow (100 to 200 metres) persistent metasedimentary belts, mainly crystalline limestone, micaceous quartzite skarn, and schist. The metasedimentary rocks generally exhibit a wide range of "grani- tization" effects and contact metasomatism.

In an area 800 metres by 300 metres, six areas of mineralized, east trending, quartz veins occur in quartz monzonite. Minerals include pyrite, galena, sphalerite, chalcopyrite, and minor bornite. The veins occur either as small swarms over areas approximately 2 by 2 metres or as single veins.

The largest vein, 2 by 0.38 metres, assayed 1.37 grams per tonne gold over 0.38 metres. A pyritic quartz vein 200 metres to the south assayed 5.07 grams per tonne gold over 0.50 metres and a 0.08 metre chip sample of a vein, 700 metres to the north, assayed 15.77 grams per tonne gold (Assessment Report 13071).

The quartz monzonite is generally fresh unfractured and unmineralized.

EMPR EXPL 1984-369,370
EMPR PF (Prospectus, May 23, 1990)
GSC MAP 23-1970; 1385A
GSC P 70-41
EMPR PFD 903367, 17953, 827811