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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  26-Sep-2007 by Mandy N. Desautels (MND)

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NMI 093H4 WO1
BCGS Map 093H012
Status Past Producer NTS Map 093H04E
Latitude 053º 08' 12'' UTM 10 (NAD 83)
Longitude 121º 39' 11'' Northing 5888321
Easting 590106
Commodities Tungsten, Gold, Lead, Zinc Deposit Types I01 : Au-quartz veins
I02 : Intrusion-related Au pyrrhotite veins
Tectonic Belt Omineca Terrane Barkerville
Capsule Geology

The Hardscrabble deposit lies within the Barkerville Terrane of the Omineca Belt. The Barkerville Terrane is in thrust contact with Triassic Quesnellia Terrane rocks to the west and Hadrynian to Lower Paleozoic Cariboo Terrane rocks to the east. The Barkerville Terrane in this region is underlain by the dominantly metasedimentary rocks of the Hadrynian to Lower Paleozoic Snowshoe Group. In this area the Snowshoe Group comprises limestone, phyllite and quartzite. These rocks have been regionally metamorphosed to greenschist facies.

The occurrence is found in a sequence of Snowshoe Group rocks consisting of fissile quartzite, relatively massive quartzite, calcareous phyllite, relatively pure phyllite and sandy limestone. Mineralization occurs in quartz-sulphide and quartz-carbonate scheelite veins and veinlets which are associated with faults and joints or which follow the schistosity of the enclosing rocks. The three types of mineralized veins are a gold-bearing lenticular quartz vein, two quartz-sulphide veins which apparently do not carry gold and scheelite bearing quartz veinlets or stringers. Sulphide veins are composed of quartz, pyrite, sphalerite and galena. Scheelite-bearing veinlets occur both crosscutting and following the bedding and schistosity of the enclosing rocks. These veins contain quartz, ankerite, calcite, scheelite and traces of sphalerite and galena. In general the mineralized veins are discontinuous and widely spaced.

A total of 9963 kilograms of tungsten was produced from this dposit in 1939 and 1941. In 1937, about 90 tonnes of ore was produced for testing puposes.

EM OF 1999-3
EMPR AR 1904-49; 1906-44; 1916-39,40; 1917-131; *1918-135,136;
1922-117; 1927-171; 1928-195; 1935-C40; 1936-C38; 1937-C34;
1938-C49; 1939-101; 1940-86; 1941-81; 1945-82
EMPR ASS RPT 7989, 10936, 10937, 11299
EMPR BC METAL (Fiche records - Columbia Tungsten Co. Mines Ltd.)
EMPR BULL *10, pp. 58-67; *10-Revised, pp. 82-90
EMPR EXPL 1980-330,331
EMPR OF 1991-17, 1999-3
EMPR PF (Report on the Hardscrabble Scheelite Deposit, 1918; Geology
of workings on Hardscrabble Creek, 1939; Hardscrabble Mine section
and level plans, Columbia Tungstens Co. Ltd., 1939; Sutherland
Brown, A., Holland, S.S., (1956) The Structure of the Northeast
Cariboo District, in 93H General Property File)
GSC EC GEOL 17, pp. 62-67
GSC MEM 149, pp. 210,211
GSC SUM RPT 1932A, pp. 55,56