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File Created: 20-Dec-1989 by Garry J. Payie (GJP)
Last Edit:  29-Nov-2013 by Karl A. Flower (KAF)

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NMI
Name GOLD CREST, GUPPY, WARN BAY Mining Division Alberni
BCGS Map 092F022
Status Showing NTS Map 092F05E
Latitude 049º 15' 40'' UTM 10 (NAD 83)
Longitude 125º 44' 21'' Northing 5460094
Easting 300711
Commodities Gold Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Gold Crest occurrence is located near shore on the western side of Warn Bay.

The region is underlain by Paleozoic Sicker Group sediments and volcanics. These are overlain by Upper Triassic Vancouver Group rocks consisting of Karmutsen Formation volcanics and Quatsino Formation limestone. Stocks of the Jurassic Island Intrusions consisting of granodiorite to quartz diorite intrude the strata. An assemblage of rocks belonging to the pre-Jurassic Westcoast Complex also occurs in the area. The assemblage consists of gneiss, amphibolite, agmatite, and quartz diorite or tonalite. This complex is considered to be derived from Sicker and Vancouver group rocks which were migmatized in early Jurassic time. Its mobilized granitoid part is thought to have become the source of the Jurassic Island Intrusions.

The showing consists of a brecciated shear in Sicker volcanics. Quartz healed breccia, quartz veining and fault gouge fill a 0.4 to 1.0 metre wide shear zone in an andesitic agglomerate. The zone strikes 166 degrees and dips 85 degrees to the east. In 1988, a one metre chip sample contained 3.09 grams per tonne gold and a sample of pyritic wallrock assayed 1.37 grams per tonne gold over 0.29 metres (Assessment Report 17589).

In 1986, W. Guppy completed a program of prospecting and geochemical sampling on the area as the Baycrest 1-3 mineral claims. During 1988 through 1990, Arklow Resources and Strabane Resources options the property and completed programs of prospecting, geological mapping, rock and soil sampling and ground magnetic and electromagnetic surveys.

Bibliography
EMPR ASS RPT 15551, *17589, 18890, 20219
EMPR EXPL 1987-C146, 1988-C85
EMPR FIELDWORK 1988, pp. 61-74
GSC MAP 17-1968; 1386A
GSC OF 463
GSC P 68-50; 72-44; 79-30
CJES Vol.24, No.10, 1987, pp. 2047-2064
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Rocks, Unpublished Ph.D. Thesis, Carleton University
Isachsen, C. (1984): Geology, Geochemistry and Geochronology of the
Westcoast Crystalline Complex and Related Rocks, Vancouver Island,
British Columbia, M.Sc. Thesis, University of British Columbia
EMPR PFD 672818

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