British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  21-Jun-2006 by Kirk Hancock (KDH)

Summary Help Help

NMI 092H8 Au4
BCGS Map 092H040
Status Past Producer NTS Map 092H08E
Latitude 049º 22' 28'' UTM 10 (NAD 83)
Longitude 120º 02' 17'' Northing 5473302
Easting 715001
Commodities Gold, Silver, Copper, Arsenic Deposit Types K04 : Au skarn
K08 : Garnet skarn
Tectonic Belt Intermontane Terrane Quesnel, Plutonic Rocks
Capsule Geology

The Mascot Fraction is located on the northwest slope of Nickel Plate Mountain, 3 kilometres northeast of Hedley.

Nickel Plate Mountain is underlain by siltstone and limestone of the Hedley Formation and overlying limestone boulder conglomerate of the Whistle Creek Formation, both of the Upper Triassic Nicola Group. The sediments are extensively intruded by sills and dykes of hornblende porphyritic diorite of the Early Jurassic Hedley Intrusions.

This Crown-granted claim covers a portion of the Nickel Plate deposit, a westerly dipping skarn related gold deposit hosted in the upper part of the Hedley Formation. A discontinuous zone of garnet pyroxene skarn up to 300 metres thick and 6 square kilometres in area, is mineralized with arsenopyrite and pyrrhotite, with minor pyrite, chalcopyrite, sphalerite, and magnetite. Trace minerals include galena, native bismuth, gold, electrum, tetrahedrite, native copper, gersdorffite, marcasite, molybdenite, titanite, bismuth tellurides, cobaltite, erythrite, pyrargyrite and breithauptite. The deposit consists primarily of arsenopyrite, pyrrhotite and chalcopyrite, as disseminations and fracture-fillings, in a gangue of carbonate, pyroxene, scapolite, garnet and quartz at the Nickel Plate glory hole, 500 metres east-southeast of the Mascot Fraction claim. Two blade-like zones of mineralization, the Numbers 4 and 5 orebodies, plunge west-northwest at 24 degrees under the claim (Geological Survey of Canada Summary Report 1929, page 227A). Refer to the Nickel Plate mine (092HSE038) for a detailed review of the regional and mine geology.

The Hedley Gold Mining Company (operator of the Nickel Plate mine up to 1931), had mined the Nickel Plate deposit underground up to the boundaries of the claim. The company and the owner could not come to a suitable agreement regarding mining of ore on the Mascot Fraction. Hedley Mascot Gold Mines Ltd. was then formed in 1934 to acquire the Mascot Fraction, Copper Chief and Nick of Time claims.

Underground mining began in 1936 and continued through to 1949; 618,637 tonnes of ore grading 11.2 grams per tonne gold, 2.76 grams per tonne silver and 0.141 per cent copper were mined from three levels of underground workings over an elevation of 335 metres. Arsenic was also produced and sold as a byproduct of this operation. Mascot Gold Mines Ltd. completed 3733 metres of underground diamond drilling in 1987, resulting in open pit reserves of 466,000 tonnes grading 3.8 grams per tonne gold and underground reserves of 289,800 tonnes grading 5.5 grams per tonne gold (George Cross News Letter, February 29 (No. 41), 1988).

EMPR AR 1908-251; 1931-133; 1934-D18; 1935-D11; 1936-D3,D54;
1937-D3,D30; 1938-D33,D34; 1939-75; 1940-61; 1941-25,59,60;
1942-26,57; 1943-62,124; 1944-57; 1945-92,93; 1946-124;
*1947-139-142; 1948-123,124; 1949-131
EMPR BULL 20, pp. 3-20
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. 19-28
EMPR PF (Clippings; General Composite Plan (map), Hedley-Nickel Plate,
Dundee Mines Ltd.; Starr, C.C. (1926): Report on Preliminary
Examination of Mining Claims, Hedley Camp; Map of Hedley Camp
with Geology and claims, 1926, (in 092HSE062))
EMR MINES BR OTTAWA INVEST # 605, MD 2622, PUB # 748-179
EMR MP CORPFILE (Hedley Mascot Gold Mines Ltd., Kelowna Exploration
Co. Ltd.)
EMR MRD METALS FILE (Hedley Gold Mining Co.-Treatment of Cobalt Ores)
GSC MAP 2A; 568A; 888A; 889A; 41-1989
GSC MEM 2; 243, pp. 72,73
GSC OF 2167, pp. 59-80
GSC SUM RPT 1929, pp. 198A-252A
CIM TRANS VOL. 44, pp. 524-590 (1941)
GCNL #132, 1980; #196, 1982; #101, 1983; #49,#224, 1984; #55,#98,
1985; #150,#223, 1986; #17,#28,#59,#134,#136,1987; #41, 1988
N MINER SEPT 17, 1981; FEB 25, OCT 14, 1982; SEPT 1, 1983; FEB 9,
MARCH 29, 1984
THE MINER, MAY 1936, p. 27
V STOCKWATCH July 17, 1987