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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  26-Jun-1986 by Brian Grant (BG)

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NMI
Name BOIVIN, SOAB Mining Division Fort Steele
BCGS Map 082J005
Status Showing NTS Map 082J03E
Latitude 050º 01' 24'' UTM 11 (NAD 83)
Longitude 115º 04' 07'' Northing 5543012
Easting 638345
Commodities Zinc Deposit Types E12 : Mississippi Valley-type Pb-Zn
Tectonic Belt Foreland Terrane Ancestral North America
Capsule Geology

In the Boivin occurrence area, stratabound lead-zinc showings occur in platformal carbonates of the Upper Devonian Palliser Formation. A distinctive carbonate rock termed "Zebra Facies" that is characterized by fenestral (and geopetal) spar dolomite crescents in a fine-grained granular dolomite matrix, hosts the mineralization. It is interpreted to be of supratidal algal origin and is underlain and overlain by massive, subtidal limestone. Pale yellow to almost clear sphalerite is disseminated through the granular dolomite and is concentrated along the periphery of spar dolomite patches and within the spar dolomite. The mineralization is confined to a number of discrete zones generally less than 1 metre thick and a few metres in length. The Boivin showing measures approximately 12 by 2 metres and contains up to 20 per cent zinc.

Bibliography
EMPR AR 1953-155
EMPR ASS RPT 6263, 6910, *7489
EMPR EXPL 1976-E46; 1977-E60; 1978-E71; 1979-80
EMPR FIELDWORK *1980, p. 108
EMPR MAP *46
GSC OF 634
EMPR PFD 503433

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