MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 092GSE034

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	04-Jan-1990	by	Laura L. Duffett (LLD)

SUMMARY


		NMI
Name	CROKER ISLAND QUARRY	Mining Division	New Westminster
		BCGS Map	092G046
Status	Past Producer	NTS Map	092G07W
Latitude	049º 26' 14''	UTM	10 (NAD 83)
Longitude	122º 52' 15''	Northing	5476070
		Easting	509365
Commodities	Granite, Dimension Stone, Aggregate, Building Stone	Deposit Types	R03 : Dimension stone - granite R15 : Crushed rock
Tectonic Belt	Coast Crystalline	Terrane	Plutonic Rocks


Capsule Geology	Granite was quarried from an outcrop that rises to a height of about 30 metres near the middle point, on the west side of Croker Island. No production figures are available. The granite or granodiorite is part of the Jurassic to Tertiary Coast Plutonic Complex. The intrusive rock is fairly uniform in appearance and exhibits horizontal sheet jointing, ranging from 0.3 to 4.5 metres in thickness.

Bibliography

EMPR IND MIN FILE (Hora, Z.D. (1979): Rock Quarries in British Columbia - Granite, p. 8 (in Ministry Library))

EMPR OF 1991-20

GSC MAP 1069A; 1151A; 1153A; 1386A

GSC MEM 335

GSC P 90-1F, pp. 95-107

Armstrong, J.E. (1990): Vancouver Geology, Geological Association of Canada (Cordilleran Section)

Ditson, G.M. (1978): Metallogeny of the Vancouver-Hope Area, British Columbia, M.Sc. Thesis, University of British Columbia