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File Created: 20-Nov-1986 by Larry Jones (LDJ)
Last Edit:  10-Aug-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI 103I9 Cu10
Name FRISCO, LEGATE CREEK Mining Division Omineca
BCGS Map 103I070
Status Past Producer NTS Map 103I09E
Latitude 054º 40' 04'' UTM 09 (NAD 83)
Longitude 128º 05' 36'' Northing 6058201
Easting 558476
Commodities Copper, Silver, Gold, Lead, Zinc Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Stikine, Plutonic Rocks
Capsule Geology

The Frisco occurrence is located along the south side of Frisco Creek in rugged terrain approximately 35 kilometres northeast of Terrace. Access to the property is gained by all-weather road northward from Terrace along the Skeena River valley, then along a forestry road about 20 kilometres southeastward up the valley of Legate Creek (ca. 1988). A trail established in the early 1900s leads to showings on the property, which are at and above timberline.

Andesites of the Jurassic Hazelton Group are intruded by quartz porphyry sills up to 30 metres wide. Disseminations and stringers of chalcopyrite and bornite occur above the sills over a 30 metre distance. A 12 metre wide mineralized zone strikes east and dips 30 degrees south. A grab sample from sorted ore assayed 11.62 per cent copper and 398 grams per tonne silver (Geological Survey of Canada Memoir 212).

About 300 metres to the east, a quartz vein, 15 to 60 centimetres wide, is exposed for 30 metres along the hangingwall side of another quartz porphyry sill intruding the andesite. The vein is sparsely mineralized with chalcocite and tetrahedrite. A 10-centimetre sample across the vein assayed 2489 grams per tonne silver, 5.2 per cent copper and 0.69 gram per tonne gold (Minister of Mines Annual Report 1928).

The Frisco showing was sampled in 1988 with a grab sample assaying 0.18 gram per tonne gold, 301.4 grams per tonne silver, 6.1 per cent copper, 1.9 per cent lead and 0.2 per cent zinc (Assessment Report 18475).

In 1917, 9 tonnes of ore was shipped from this property. From this ore, 15,552 grams of silver and 2903 kilograms of copper were recovered.

In 1988, Cedarmine Resources Inc. conducted a short geological exploration program on the Top claim which covers the Frisco and M&K (103I 062) showings.

Bibliography
EMPR AR 1916-90,101; 1917-447; 1920-84; 1923-105; 1925-130; *1928-149
EMPR ASS RPT *18475, 21105, 27786
EMPR MAP 69-1; 8
EMR MP CORPFILE (Glen Copper Mines Limited)
GSC MAP 11-1956; 278A; 1136A; 1385A
GSC MEM *212, p. 23; 329, p. 94
GSC P 36-20, pp. 32,33; 36-17
GSC SUM RPT *1925A , p. 111
Dandy, L. (2012-03-01): Geological, Geochemical and Diamond Drilling Report on the Terrace Property

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