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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  29-Nov-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name TOFINO CREEK, WINTER, PAWNEE, CLEAR CREEK, FOREMOST Mining Division Alberni
BCGS Map 092F023
Status Prospect NTS Map 092F04E
Latitude 049º 14' 28'' UTM 10 (NAD 83)
Longitude 125º 35' 46'' Northing 5457503
Easting 311042
Commodities Copper, Magnetite, Iron, Molybdenum, Silver Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Tofino Creek occurrence is located on the western side of Tofino Creek, approximately 700 metres north of the creek mouth.

The Deer Bay area is underlain by the pre-Jurassic Westcoast Complex, an assemblage of greenstone, limestone, diorite, granite, granodiorite and basalt porphyry.

At the occurrence, greenstone along the footwall of a thin limestone band is skarn altered and contains chalcopyrite, malachite and magnetite. In 1988, two grab samples (954 and 955) of massive sulphides from a muck pile assayed 5.2 and 4.3 per cent copper with 58.9 and 29.7 grams per tonne silver, respectively (Assessment Report 17284).

Approximately 120 metres to the north, gently west-dipping greenstone located at the hanging wall of the limestone, is partly altered to garnet-diopside-pyroxene-amphibole skarn and contains magnetite and chalcopyrite. Diorite (dike?) in the greenstone is slightly altered and contains disseminated molybdenite.

About 60 metres south of the first showing, minor disseminated molybdenite occurs in skarn-altered diorite and granodiorite.

Immediately east of Tofino Creek, massive magnetite and associated chalcopyrite is exposed in blasted outcrop in an area of former workings. An intrusive dike in the area hosts molybdenite. In 1998, three samples (978, 979 and 980) from the former workings andexposed outcrop assayed from 3.0 to 9.6 per cent copper and 14.4 to 53.0 grams per tonne silver (Assessment Report 17284).

During 1988 through 1991, Stage Exploration Ltd., later Stag Holdings, completed programs of geochemical sampling and ground geophysical surveys on the area as apart of the Deer Bay property.

Bibliography
EMPR AR *1963-115; 1967-75
EMPR ASS RPT 8106, 8138, 14807, 16220, *17284, 21777
EMPR BULL 55; 20 PART V
EMPR EXPL 1980-169; 1986-C171; 1987-C144
EMPR GEM 1969-217; 1972-265; 1973-230; 1974-174
EMR MP CORPFILE (Taiga Mines Limited; Clear Creek Exploration Company
Limited)
GSC MAP 17-1968; 1386A
GSC OF 9, 61, 463
GSC P 66-1; 68-50, pp. 36, 38, 41; 72-44; 80-16
GSC SUM RPT 1920A
CJES Vol.24, No.10, 1987, pp. 2047-2064
GCNL #235 (1979); 49 (1988)
Carson, D.J.T. (1968): Metallogenic Study of Vancouver Island with
Emphasis on the Relationship of Plutonic Rocks and Mineral
Deposits, Ph.D. Thesis, Carleton University
Isachsen, C. (1984): Geology, Geochemistry and Geochronology of the
West Coast Crystalline Complex and Related Rocks, Vancouver
Island, British Columbia, M.Sc. Thesis, University of British
Columbia

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