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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  09-Apr-1991 by Garry J. Payie (GJP)

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Name SUNSET (L.954), SUNSET 2 Mining Division Trail Creek
BCGS Map 082F001
Status Past Producer NTS Map 082F04W
Latitude 049º 04' 01'' UTM 11 (NAD 83)
Longitude 117º 48' 32'' Northing 5435213
Easting 440915
Commodities Gold, Silver, Copper, Iron Deposit Types K04 : Au skarn
K03 : Fe skarn
Tectonic Belt Omineca Terrane Quesnel, Plutonic Rocks
Capsule Geology

The Sunset skarn deposit is hosted by the Early Jurassic Rossland monzonite which intrudes the Lower Jurassic Elise Formation (Rossland Group) volcanics and greenstone. The host rock is comprised of a biotite-hornblende-augite monzonite stock which is medium-grained, grey to green in color and hosts magnetite, apatite, some sphene with chlorite, epidote and pyrite.

The ore from the Sunset tunnel is contained in a magnetite- skarn and consists of massive pyrrhotite and magnetite with a fair amount of chalcopyrite intermixed in a quartz and altered monzonite gangue. The massive magnetite shows good octahedral cleavage. A shaft was sunk on a 15 centimetre vein of ore. The ore was mined and shipped in 1898 and 1908 to the Trail smelter. A total of 30 tonnes of ore produced 373 grams gold, 809 grams silver and 99 kilograms copper.

EMPR AR 1897-537,539; 1898-1094,1157,1161,1193; 1899-717; 1900-861; 1905-253; 1908-105,247; 1914-332; 1949-158
EMPR BULL *74; 109
EMPR FIELDWORK 1987, pp. 19-30; 1988, pp. 33-43; 1989, pp. 11-27; 1990, pp. 9-31
EMPR OF 1988-1; 1989-11; 1990-8; 1990-9; 1991-2; 1991-16
GSC MAP 1004; 1504A; 1518
GSC MEM *77, pp. 79,171,172; 308
GSC OF 1195
GSC P 79-26
ECON GEOL Vol.68, 1973, pp. 1337-1346
PERS COMM Andrew, K.P.E., March 1991
Thorpe, R.I. (1967): Controls of Hypogene Sulphide Zoning, Rossland, British Columbia, Ph.D. Thesis, University of Wisconsin