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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  25-Mar-2026 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name AB Mining Division Victoria
BCGS Map 092C089
Status Showing NTS Map 092C16W
Latitude 048º 51' 29'' UTM 10 (NAD 83)
Longitude 124º 17' 35'' Northing 5412483
Easting 405155
Commodities Copper, Gold Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The AB showing is located on a north-facing slope, south of Cowichan Lake and approximately 6.4 kilometres southeast of the Community of Caycuse.

Regionally, the area is underlain by extensively faulted rocks of the Upper Triassic Vancouver Group and the Upper Triassic to Lower Jurassic Bonanza Group. The basal Vancouver Group sequence is comprised of basalt flows, breccias and tuffs of the Karmutsen Formation overlain by Quatsino Formation limestone, which in turn is overlain by black argillites of the Parsons Bay Formation. The overlying Bonanza Group consists of a sequence of argillites, cherts, cherty tuffs, volcanic and/or sedimentary breccias, sandstones and basaltic to rhyolitic flows. The overall package of rocks has been broadly to tightly folded with fold axes generally trending northwest and intruded by granodioritic and feldspar porphyritic dikes and bodies of the Early to Middle Jurassic Island Plutonic Suite. At lower elevations, locally around Cowichan Valley, undivided sedimentary rocks of the Upper Cretaceous Nanaimo Group overlay the previous units.

Locally, chalcopyrite, pyrite and chalcocite mineralization are reported to be associated with volcanic rocks. No other information is available.

Approximately 850 metres to the northwest of the plotted location of the occurrence a contact between a limestone and volcanic rock hosts disseminations and veinlets of chalcopyrite and pyrite mineralization.

Work History

In 2014 and 2018, the area immediately north was prospected and sampled as the Caycuse & Friends and Andy claims. A rock sample from the northwest contact zone assayed 0.166 gram per tonne gold (Assessment Report 34893).

During 2020 through 2024, programs of prospecting, geochemical (rock, silt and soil) and biogeochemical sampling, spectral analysis/remote sensing and a 3.0 line-kilometre ground magnetic survey were conducted on the area as the Cowichan property by Darcy Vis.

Bibliography
EMPR ASS RPT *34893, 37694, 39563, 40741, 41595, 42009, 42518
EMPR BULL 37
EMPR FIELDWORK 1977, p. 23; 1986, pp. 223-229; 1987, pp. 81-91; 1989,
pp. 503-510
EMPR GEM *1969-222
EMPR OF 1987-2; RGS 24, 1990
EMPR MP MAP 1992-2
EMPR PF (In General File: B.C. Forest Products Road Map, Cowichan
Lake Area, 1963)
GSC MAP 1386A
GSC MEM 13
GSC OF 463; 821; 1272
GSC P 72-44; 76-1A; 79-30
Carson, D.J.T. (1968): Metallogenic study of Vancouver Island with
emphasis on the relationships of mineral deposits to plutonic
rocks, Ph.D. Thesis, Carleton University

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