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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  05-Jun-1990 by Peter S. Fischl (PSF)

Summary Help Help

NMI
Name JON, SUNDOWN Mining Division Vancouver
BCGS Map 092G061
Status Showing NTS Map 092G12W
Latitude 049º 39' 40'' UTM 10 (NAD 83)
Longitude 123º 57' 45'' Northing 5501397
Easting 430537
Commodities Copper, Molybdenum Deposit Types
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

A small zone of sparse copper-molybdenum mineralization occurs 3 kilometres northeast of the head of Pender Harbour, 3 kilometres southeast of Sakinaw Lake on Sechelt Peninsula.

The Jon showing is hosted in granite and granodiorite of Upper Jurassic age within the southwestern margin of the Jurassic to Tertiary Coast Plutonic Complex.

A fault zone striking 150 degrees for at least 140 metres and dipping 60 degrees northeast is mineralized with disseminated pyrite and pyrrhotite with minor to trace amounts of chalcopyrite and molybdenite. The zone varies up to 32 metres in width. The granite and granodiorite are silicified and weakly clay altered within this fault zone. Two 1.5 metre long chip samples assayed 0.1 per cent copper, trace molybdenum, and 0.01 per cent copper, 0.01 per cent molybdenum respectively (R.N. Beewar, 1972).

Bibliography
EMPR ASS RPT 4278, *5459, *6259
EMPR BULL 39
EMPR EXPL 1975-106,107; 1977-119,120
EMPR GEM 1973-241
EMPR PF (*Beewar, R.N. (1972): The Jon Group - Summary, Conclusions and Recommendations; Prospectus - Yukonadian Mineral Explorations Ltd., p. 12)
GSC MAP 42-1963; 1069A; 1386A
GSC OF 611
GSC P 90-1F, pp. 95-101
Ditson, G.M. (1978): Metallogeny of the Vancouver-Hope Area, British Columbia, M.Sc. Thesis, University of British Columbia

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