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File Created: 07-May-1991 by Peter S. Fischl (PSF)
Last Edit:  15-Apr-2021 by Nicole Barlow (NB)

Summary Help Help

NMI
Name SOWCHEA CREEK VERMICULITE Mining Division Omineca
BCGS Map 093K038
Status Prospect NTS Map 093K07E
Latitude 054º 22' 55'' UTM 10 (NAD 83)
Longitude 124º 30' 46'' Northing 6027073
Easting 401752
Commodities Vermiculite Deposit Types M08 : Vermiculite deposits
Tectonic Belt Intermontane Terrane Cache Creek
Capsule Geology

The Sowchea Creek vermiculite prospect occurs north of Sowchea Creek, approximately 17 kilometres southwest of Fort St. James.

Vermiculite is concentrated in a zone of weathered medium-grained Jurassic hornblende diorite, exposed in five outcrops along a roadcut over a distance of 150 metres. Expandable mica also occurs in fresh medium-grained diorite exposed southwest and northeast of the weathered diorite.

Exfoliation tests on a sample of vermiculite were carried out by CANMET, Energy, Mines and Resources Canada. Vermiculite content of the tested sample averaged 11.8 per cent (Geological Fieldwork 1990, p. 267, Table 3-1-1). The material may be too fine-grained for use as loose insulation; 89 per cent of the vermiculite was found to occur in size fractions below 1.65 millimetres. Bulk densities of the minus 1.65-millimetre size fractions ranged from 357 to 434 kilograms per cubic metre, above the ASTM range of 88 to 128 kilograms per cubic metres specified for loose insulation.

Work History

In 1988, Orion Resources Ltd. conducted an investigation into the economic viability of vermiculite deposits of the Frank M.C. and Mag claims. Additionally, two rock samples were collected for assay.

In 2018, Sable Resources Ltd. conducted a soil and silt sampling geochemical survey over the Sauchi Creek claims and collected a total of 17 silt samples and 50 soil samples.

Bibliography
EMPR ASS RPT 17896, 37858
EMPR EXPL 1992-69-106
EMPR FIELDWORK *1989, pp. 481-487; *1990, pp. 265-268; 1992, pp. 69-86, 475-482
EMPR MIN POT MAP 1993-2
EMPR OF 1993-9
GSC MAP 630A, 971A, 1424A
GSC MEM 252
GSC OF 2593, 3182
GSC P 90-1F, pp. 115-120; 91-1A, pp. 7-13

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