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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  12-Jul-1989 by Peter S. Fischl (PSF)

Summary Help Help

NMI
Name HARDY ISLAND LIMESTONE Mining Division Vancouver
BCGS Map 092F080
Status Showing NTS Map 092F09E, 092F16E
Latitude 049º 44' 41'' UTM 10 (NAD 83)
Longitude 124º 09' 46'' Northing 5510897
Easting 416228
Commodities Limestone Deposit Types
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks
Capsule Geology

A shallow dipping to tightly folded band of limestone outcrops on the northeastern tip of Hardy Island in Jervis Inlet, 68 kilometres north-northwest of Nanaimo. This band is likely the northwestern continuation of the Upper Triassic Vancouver Group, Karmutsen Formation limestone bed on Nelson Island (see Nelson Island 092F 100). It lies in siliceous schist within quartz diorite of the Jurassic to Tertiary Coast Plutonic Complex. The limestone extends northwest from Blind Bay initially as a single 21 metre wide band that eventually splits into two narrower bands. The rock is generally fine grained and impure. It contains zones paralleling bedding comprised of silicates and pyrite. A sample contained 54.18 per cent CaO, 0.24 per cent MgO, 1.80 per cent SiO2 and 0.70 per cent Fe2O3 (CANMET Report 811, page 160).

Bibliography
EMPR BULL *23, p. 103; 39; 40, p. 95
GSC MAP 17-1968; 42-1963; 1386A
GSC OF *611
GSC P 66-1; 68-50; 72-44
GSC SUM RPT 916, pp. 14,15
CANMET RPT *811, Part 5, p. 160

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