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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  27-Nov-14 by Laura deGroot(LDG)

Summary Help Help

NMI
Name HED, GOLD, GOLD HILL, GOLD MINE Mining Division Similkameen
BCGS Map 092H040
Status Prospect NTS Map 092H08E
Latitude 49º 21' 18" N UTM 10 (NAD 83)
Longitude 120º 08' 59" W Northing 5470828
Easting 706978
Commodities Gold, Zinc Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Quesnel, Plutonic Rocks
Capsule Geology

The Hed prospect is on the south side of the Similkameen River, about 5.3 kilometres west of Hedley.

The deposit is underlain by rocks from the Whistle Creek Formation, which is divisible into three stratigraphic sequences, with the oldest being well-bedded massive tuffs of andesitic to basaltic composition. Higher in the unit, ash tuffs with minor lapilli tuffs and volcanic breccias predominate.

A carbonate-quartz breccia vein cuts argillite, tuff and chert in the lower Whistle Creek Formation. Fine-grained to coarse porphyritic diorite dykes of the Hedley Intrusive suite crosscut the strata and locally contain disseminated pyrite and arsenopyrite. The vein strikes 158 degrees, dips vertically and is up to 15 metres wide (core length). Diamond drilling has traced the vein over a strike length of 55 metres. The vein is comprised of graphitic argillite clasts in a matrix of carbonate and quartz.

The breccia commonly contains 1 to 5 per cent disseminated pyrite, with occasional massive pyrite sections up to 15 centimetres in width. Minor black sphalerite occurs in areas with 3 to 20 per cent coarse pyrite. Gold values encountered in drilling varied up to 3.4 grams per tonne over 0.6 metre (Assessment Report 6060, page 17, hole 1-76, 16.8 to 17.4 metres). A grab sample of leached gossan developed over the vein assayed 70.15 grams per tonne gold (Assessment Report 6060, page 17).

The deposit was discovered by Canadian Occidental Petroleum Ltd. in 1976. The company completed soil and geological surveys, and drilled three holes totalling 244 metres.

Bibliography
EMPR ASS RPT *6060, 10018, 10882, 13988, 16427, *17966, 19351
EMPR EXPL 1976-E83; 1977-E128; 1982-178
EMPR FIELDWORK 1985, pp. 101-105; 1986, pp. 65-79; 1987, pp. 59-80
EMPR OF 1987-10; 1988-6
EMPR P 1989-3, pp. 19-25
EMPR PF (Prospectors Report 1999-14 by Grant Crooker)
GSC MAP 568A; 888A; 41-1989
GSC MEM 2; 243
GSC OF 2167, pp. 59-80
GSC SUM RPT 1929, pp. 198A-252A
CJES Vol. 9, pp. 1632-1639 (1972)

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