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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  22-Feb-1991 by David G. Bailey (DGB)

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Name BIG CREEK MAGNESITE, BIG CREEK Mining Division Clinton
BCGS Map 092O065
Status Showing NTS Map 092O11E
Latitude 051º 42' 00'' UTM 10 (NAD 83)
Longitude 123º 02' 05'' Northing 5727673
Easting 497600
Commodities Hydromagnesite, Magnesite Deposit Types F09 : Playa and Alkaline Lake Evaporites
Tectonic Belt Intermontane Terrane Stikine, Overlap Assemblage
Capsule Geology

Hydromagnesite deposits are being formed today in many of the playas of the Chilcotin Plateau, a region characterised by a semi- arid climate, relatively mature topography and, in some areas, internal drainage systems.

The Big Creek hydromagnesite showing occurs about six kilometres south of the Fletcher Lake showing (092O 084) in the same drainage system as Fletcher lake. It is estimated that about 500 tonnes of hydromagnesite are present with the composition of 64.2 per cent MgCO3, 5.7 per cent CaCO3, 0.60 per cent Al2O3, 1 per cent Fe2O3, 11 per cent water and 16 per cent insoluble material (Bulletin 4).

EMPR BULL *4, pp. 113-115
EMPR FIELDWORK 2000, pp. 327-336
EMPR OF 1987-13
GSC MEM 249, pp. 145-146
GSC OF 534; 2207