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File Created: 05-Jul-2013 by Karl A. Flower (KAF)
Last Edit:  08-Jul-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name SPUR 10, DOE LAKE Mining Division Victoria
BCGS Map 092C070
Status Showing NTS Map 092C09E
Latitude 048º 39' 50'' UTM 10 (NAD 83)
Longitude 124º 09' 14'' Northing 5390735
Easting 415036
Commodities Copper, Silver Deposit Types K01 : Cu skarn
Tectonic Belt Insular Terrane Wrangell, Plutonic Rocks
Capsule Geology

The Spur 10 occurrence is located north of Lens Creek, approximately 1.7 kilometres south of Doe Lake.

The area is underlain by massive volcanic rocks, dominantly basalts and andesites, of the Upper Triassic Karmutsen Formation (Vancouver Group). Overlying these is massive limestone of the Upper Triassic Quatsino Formation (Vancouver Group). The strata have been cut by several stocks and dike/sill swarms ranging in composition from diorite to aplite and dacite, sometimes feldspar phyric. These rocks are bounded to the north, east and south by a large mass of intrusive rock of the Lower to Middle Jurassic Island Plutonic Suite.

Locally, several skarn showings have been developed in both the volcanic and limestone units at or near intrusive contacts. The skarns contain varying amounts of sulphides, locally massive. Mineralization is typically podiform, discontinuous and leached. Two types of skarns have been developed: 1) garnet, actinolite ±chalcopyrite and pyrite in limestone adjacent dacite dikes and 2) massive magnetite, chalcopyrite and pyrite with lesser amounts of garnet, epidote, actinolite and quartz in basalt or basaltic tuff.

In 2005 through 2009, Le Baron Prospecting completed programs of geochemical sampling and prospecting on the area as the Doe Lake project. In 2007, grab samples of quartz containing chalcopyrite assayed up to 3.9 grams per tonne silver and 1.68 per cent copper (Assessment Report 30517).

Bibliography
EMPR ASS RPT 28668, 29291, 29543, *30517, 30643, 31274, 31490
EMPR EXPL 2002-29-40
EMPR FIELDWORK 1989, pp. 503-510
EMPR GEM 1970-291; 1971-226; 1977-E106
EMPR OF RGS 24
GSC MAP 1386A
GSC MEM 13
GSC OF 463; 821
GSC P 72-44; 76-1A; 79-30

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