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File Created: 21-Feb-1991 by Peter S. Fischl (PSF)
Last Edit:  01-Mar-1991 by Peter S. Fischl (PSF)

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Name A-35-E, PROPHET RIVER SULPHUR Mining Division Liard
BCGS Map 094I038
Status Showing NTS Map 094I08W
Latitude 058º 21' 38'' UTM 10 (NAD 83)
Longitude 120º 25' 40'' Northing 6471730
Easting 650488
Commodities Sulphur Deposit Types F03 : Gypsum-hosted sulphur
F02 : Bedded gypsum
Tectonic Belt Foreland Terrane Ancestral North America
Capsule Geology

Native sulphur was intersected in well a-35-E 94I/8, an exploratory hole drilled for hydrocarbons, located 130 kilometres east-southeast of Fort Nelson.

This well was drilled through a succession of evaporites, reefal carbonates and thin beds of clastic rocks of the Middle Devonian Elk Point Group. Two sulphur-bearing sections were intersected in the upper member of the Upper Keg River Formation. An interval at 2138.2 to 2141.5 metres depth contained a 1-metre section grading 30 per cent sulphur followed by a 9-metre interval of dolomite and anhydrite interbeds with a heavy sulphurous odour and possible native sulpur. A second interval at 2167.1 to 2173.2 metres depth comprised dolomite and possible thin sulphur-bearing beds. The native sulphur is yellow, coarsely crystalline to amorphous and burns out of the samples as sulphur dioxide.

EMPR FIELDWORK *1988, pp. 529-531
EMPR PF (Hora, Z.D. (1992): Frasch Sulphur Opportunities in British Columbia and Alberta, in supplement to Mining Engineering, 121st Annual Meeting & Exhibit, 1992 (draft version) - see 094G 023)
GSC P 75-11