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File Created: 03-Jan-1995 by Garry J. Payie (GJP)
Last Edit:  03-Jan-1995 by Garry J. Payie (GJP)

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Name RANDEB 1 Mining Division New Westminster
BCGS Map 092H043
Status Showing NTS Map 092H06W
Latitude 049º 28' 27'' UTM 10 (NAD 83)
Longitude 121º 24' 33'' Northing 5481385
Easting 615247
Commodities Gold, Copper, Silver, Nickel Deposit Types M05 : Alaskan-type Pt+/-Os+/-Rh+/-Ir
Tectonic Belt Coast Crystalline Terrane Undivided Metamorphic Assembl.
Capsule Geology

The area of the Randeb 1 showing is underlain by mainly quartz-sericite-biotite gneiss and associated lenses of metavolcanic and ultramafic rocks. A lens of serpentinized peridotite is the primary hostrock of the showing. These rocks are part of the Custer Gniess, a metamorphic package probably derived from lower Mesozoic and possibly Paleozoic and Precambrian rocks and metamorphosed in the Late Cretaceous and early Tertiary. Intrusions of feldspar porphyry granodiorite and quartz diorite occur nearby.

Pyrrhotite and chalcopyrite occur in the peridotite. Pentlandite, cubanite and magnetite were also reported from this location. A sample of the peridotite yielded 1.8 grams per tonne gold, 2.7 grams per tonne silver, 0.06 per cent copper and greater than 0.05 per cent nickel (Assessment Report 10997). A sample of the nearby gneiss yielded 1.8 grams per tonne gold, 0.6 gram per tonne silver and negligible copper and nickel. In 1987, the zone was determined to have a maximum north-south extent of 130 metres.

EMPR ASS RPT 1226, *10997, 14562, 14857, 16326
EMPR EXPL 1982-172; 1985-C172; 1986-C207; 1987-C170
GSC MAP 12-1969; 737A; 1069A; 41-1989
GSC P 69-47
Read, P.B. (1960): The Geology of the Fraser Valley Between Hope and Emory Creek, British Columbia, unpublished M.Sc. thesis, University of British Columbia, Vancouver, British Columbia, p. 145
EMPR PFD 650184, 902464, 902465