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File Created: 28-Nov-2013 by Karl A. Flower (KAF)
Last Edit:  04-Dec-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name LARRY LAKE EAST Mining Division Alberni
BCGS Map 092F013
Status Showing NTS Map 092F03W
Latitude 049º 07' 02'' UTM 10 (NAD 83)
Longitude 125º 25' 56'' Northing 5443336
Easting 322527
Commodities Silver Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Larry Lake East occurrence is located approximately 400 metres east of Larry Lake, at 190 metres elevation.

The area is underlain by Karmutsen Formation basalts and andesites, and Quatsino Formation limestone, both of the Upper Triassic Vancouver Group. These in turn are overlain by Lower Jurassic Bonanza Group flows, tuffs and breccias ranging from basalt to rhyodacite in composition. Stocks of quartz diorite and grano- diorite of the Jurassic Island Plutonic Suite intrude the strata. The youngest rocks in the area are Tertiary volcanics consisting of welded tuffs, breccias, basaltic tuffs and rhyodacites. Coeval Tertiary intrusions of quartz diorite to quartz monzonite occur and may be linked to the Eocene. Rocks of the pre-Jurassic Westcoast Complex occur in the region. They are related to the Jurassic Island Plutonic Suite, and considered to be derived from Sicker and Vancouver Groups rocks.

Locally, a 5 centimetre wide quartz vein hosting sulphide mineralization is exposed over 4.2 metres. In 1985, a sample (G6) of the vein assayed 6.4 grams per tonne silver with anomalous values in copper and gold (Assessment Report 14323).

In 1985, Jasmine Resources Limited completed a program of prospecting and rock sampling on the area as the Larry Lake East claim.

Bibliography
EMPR AR 1962-111-122
EMPR ASS RPT *14323
EMPR BULL 55
EMPR EXPL 1981-81
EMPR FIELDWORK 1988, pp. 61-74
GSC MAP 17-1968; 1386A
GSC OF 463
GSC P 68-50; 72-44
Carson, D.J.T. (1968): Metallogenic Study of Vancouver Island With
Emphasis on the Relationships of Mineral Deposits to Plutonic
Rocks, Unpublished Ph.D. Thesis, Carleton University

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