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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  29-May-2013 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name GEORGINA Mining Division Nanaimo
BCGS Map 092F029
Status Showing NTS Map 092F08E
Latitude 049º 16' 13'' UTM 10 (NAD 83)
Longitude 124º 14' 21'' Northing 5458241
Easting 409857
Commodities Copper, Gold, Silver Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell, Overlap Assemblage
Capsule Geology

The Georgina occurrence is located south of Nanoose Creek, approximately 3.6 kilometres west of the creek mouth.

The area is underlain by Sicker Group rocks, thought to be correlative with the Devonian McLaughlin Ridge Formation (Cowichan uplift). These are intruded by fine to coarse-grained diorite of the Jurassic Island Intrusions and unconformably overlain by Upper Cretaceous Comox Formation (Nanaimo Group) fossiliferous sandstone and conglomerate. The Sicker rocks comprise black shale, felsic volcanic rocks, maroon and grey schist and andesite.

Locally, a strong 1.8 metre wide northwest trending shear zone within the Sicker volcanic rocks hosts a 10 centimetre wide quartz-carbonate vein striking 285 degrees and dipping 75 degrees north. The vein is mineralized with chalcopyrite, pyrite and arsenopyrite and assays give values in gold and silver. Several unmineralized veinlets also occur.

The vein was exploited by a small shaft and trenches along the bank of a creek. In 1986 and 1987, MineQuest Exploration Associated Ltd. completed programs of rock and silt geochemical sampling, geological mapping and prospecting. A chip sample from dump material at the shaft assayed 4.11 grams per tonne gold (Assessment Report 16041).

Bibliography
EMPR AR *1934-F7; 1935-G46; 1936-F63; 1939-A89
EMPR ASS RPT 14762, *16041
EMPR FIELDWORK 1987, pp. 81-91; 1988, pp. 61-74
EMPR PF (*092F General File - Rpt. by H. Laanela (1965), Gunnex
Limited, Occurrence #1)
GSC MAP 17-1968; 49-1963; 1386A
GSC OF 463; 1272
GSC P 68-50
EMPR PFD 6400, 751459, 521058

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