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File Created: 04-Jan-1990 by Garry J. Payie (GJP)
Last Edit:  10-Dec-2013 by Karl A. Flower (KAF)

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NMI
Name RANT POINT, CYPRESS Mining Division Alberni
BCGS Map 092F021
Status Showing NTS Map 092F05W
Latitude 049º 15' 41'' UTM 10 (NAD 83)
Longitude 125º 50' 08'' Northing 5460383
Easting 293700
Commodities Silver, Gold, Lead Deposit Types G06 : Noranda/Kuroko massive sulphide Cu-Pb-Zn
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Rant Point occurrence is located on the shoreline of Rant Point, near the entrance of Bedwell Sound.

The area is underlain by a thick succession of Paleozoic Sicker Group volcanics and sediments that have been intruded by numerous dykes, sills and plugs ranging from gabbro to granodiorite in composition.

The Sicker rocks comprise predominantly pyroclastic mafic to felsic volcanics with minor intercalations of chert, argillite and siltstone. The pyroclastics range from coarse lapilli (rarely breccia) tuffs to ash tuffs. Generally, the strata has an average strike of 150 degrees and dip of 50 degrees. Stocks of mafic intrusives belonging to the pre-Jurassic Westcoast Complex disrupt area strata.

Locally, a 4 metre wide exposure of massive sulphide is reported to occur in outcrop. The showing consists of 20 to 50 per cent sulphides (unspecified) hosted by pelitic sediments or tuff and schistose felsic and mafic metavolcanics. The massive sulphides are apparently concordant with the schistosity of the host volcaniclastics. In 1985, a sample of this material assayed 66.51 grams per tonne silver, 0.68 grams per tonne gold, 0.20 per cent lead, 0.026 per cent zinc and 0.006 per cent copper (Assessment Report 14003, Figure 3).

During 1985 through 1988, BHP-Utah Mines completed programs of geological mapping, rock, silt and soil sampling and ground geophysical surveys on the area as the Cypress, Maypay and Whitecliff claims.

Bibliography
EMPR ASS RPT *14003, 15563, 16742, 17359
EMPR EXPL 1985-C150, 1987-C146, 1988-C86
EMPR FIELDWORK 1988, pp. 61-74
EMPR GEM 1969-217, 1972-267
EMPR OF 1999-2
GSC MAP 17-1968; 1386A
GSC OF 463
GSC P 68-50; 79-30
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Rocks, Unpublished Ph.D. Thesis, Carleton University
EMPR PFD 672818, 831067

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