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File Created: 03-Oct-1989 by Peter S. Fischl (PSF)
Last Edit:  22-Sep-1995 by Gilles J. Arseneau (GJA)

Summary Help Help

NMI
Name SCHROEDER CREEK Mining Division Slocan
BCGS Map 082K006
Status Past Producer NTS Map 082K02W
Latitude 050º 01' 50'' UTM 11 (NAD 83)
Longitude 116º 54' 35'' Northing 5542032
Easting 506466
Commodities Limestone Deposit Types R09 : Limestone
Tectonic Belt Omineca Terrane Kootenay, Ancestral North America
Capsule Geology

The Schroeder Creek limestone quarry is situated just south of the mouth of Schroeder Creek, on the west shore of Kootenay Lake, in the Slocan Mining Division.

Regionally, the area lies within the Kootenay Arc near the margin of the Ancestral North American Terrane. The Kootenay Arc is a curving belt of highly deformed metasedimentary and metavolcanic rocks which includes the Upper Proterozoic Horsethief Creek Group, the Eocambrian Hamill Group, the Lower Cambrian Badshot Formation, and the lower Paleozoic Lardeau Group. The volcano-sedimentary sequence is intruded by numerous Ordovician, Devonian and Mississippian granitoid plutons. The rocks have undergone regional metamorphism to middle or upper greenschist facies (Paper 1993-1).

Limestone was quarried and used as flux for the smelter at Nelson earlier this century. The quarry lies in a band of light grey to dark grey, massive, coarse-grained limestone of the Lower Cambrian Badshot Formation that trends north-northwest for 2.0 kilometres, crossing the creek 0.4 kilometre above its mouth. The bed dips steeply to the east. Underlying quartzites of the Lower Cambrian Hamill Group outcrop to the west. Two grab samples assayed as follows in per cent (Geological Survey of Canada Memoir 173, page 34):

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Sample CaCO3 MgCO3 Insolubles Fe2O3+Al2O3

1 89.28 6.81 2.91 0.48

2 96.07 2.50 0.52 0.56

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Sample 1 is of dark grey limestone, and Sample 2 is of light grey limestone.

Bibliography
EMPR AR 1959-172
EMPR BULL 49; *53, p. 23, Fig.2B
EMPR FIELDWORK 1992, pp. 9-16
EMPR GEOS MAP 1995-1
EMPR OF 1992-18, p. 104
EMPR PF (82KSE General File - Geology map by P. Billingsley, 1958)
GSC MAP 12-1957; 235A; 1326A
GSC MEM *173, p. 34; 369, pp. 58-59
Pope, A.J. (1989): The Tectonics and Mineralization of the Toby- Horsethief Creek Area, Purcell Mountains, Southeast British Columbia, Canada, unpublished Ph.D. Thesis, University of London, England
EMPR PFD 1676

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