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File Created: 22-Nov-1991 by Peter S. Fischl (PSF)
Last Edit:  22-Apr-1992 by Peter S. Fischl (PSF)

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Name COPPER CLIFF, COPPER CLEFT (L.1877) Mining Division Osoyoos
BCGS Map 092H040
Status Showing NTS Map 092H08E
Latitude 049º 22' 19'' UTM 10 (NAD 83)
Longitude 120º 02' 26'' Northing 5473017
Easting 714830
Commodities Gold, Silver, Copper Deposit Types
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Copper Cliff (Copper Cleft) showing is situated on the west slope of Nickel Plate Mountain, near its summit, 2.8 kilometres northeast of Hedley.

This Crown-granted claim is underlain by siltstone and limestone of the Upper Triassic Hedley Formation. These sediments are intruded by hornblende porphyritic diorite dykes of the Early Jurassic Hedley Intrusions.

This showing consists of a large outcrop of pyrrhotite and copper sulphides ("copper pyrites"), occurring at the base of a 60 metre bluff. Mineralization is bedded, occurring in layers up to 8 centimetres thick that strike northeast and dip 45 degrees west, parallel to the slope. Sulphide layers vary in composition, with those in the upper part of the showing tending to be richer in copper sulphide and those in the lower part being richer in pyrrhotite. A representative sample assayed 4.11 grams per tonne gold, 96 grams per tonne silver and 1.6 per cent copper (Minister of Mines Annual Report 1901, page 1164).

EMPR AR 1899-742; 1900-883; 1901-1164; 1902-304; 1941-59
EMPR FIELDWORK 1985, pp. 101-105; 1986, pp. 65-79; 1987, pp. 59-80
EMPR GEM 1970-393
EMPR OF 1987-10; 1988-6
EMPR P 1989-3, pp. 19-35
GSC MAP 568A; 888A; 41-1989
GSC MEM 2; 243
GSC OF 2167, pp. 59-80