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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  30-May-2022 by Karl A. Flower (KAF)

Summary Help Help

NMI 092L5 Fe3
Name POWER, LIT 16-23, LIT 30-33, LITTLE LAKE Mining Division Alberni
BCGS Map 092L023
Status Prospect NTS Map 092L05E
Latitude 050º 15' 24'' UTM 09 (NAD 83)
Longitude 127º 30' 58'' Northing 5568222
Easting 605777
Commodities Iron, Magnetite Deposit Types
Tectonic Belt Insular Terrane Wrangell
Capsule Geology

The Power occurrence is located east of the Power River, approximately 6.6 kilometres north-northwest of Power Lake.

The area is underlain by layered dark green basalts, rhyolite, andesite, breccia and minor limy sediments thought to be correlative with the Lower Jurassic Bonanza Group. The area has been extensively faulted and intruded by dikes and sills of andesite, diorite and gabbro, related to the Early to Middle Jurassic Island Plutonic Suite.

Magnetite showings, notably the "A", "C", and "B" zones, are found as lenses along or near faults or shear zones in the basalt east of the Power River. The lenses host either massive magnetite or contain scattered grains of magnetite with epidote, pyroxene and sparsely disseminated sulphides. Contacts of magnetite lenses with basalt are sharp and the basalt is unaltered. Small cross-faults offset several of the magnetite deposits.

The A, C and B zones lie in a nearly straight east-west line running slightly south of east from the river.

The A zone is shaped like a narrow canoe with an average width of 18 metres, depth of 46 metres and slope length of 152 metres. It lies between 130 and 205 metres elevation. The C zone lies between 244 and 335 feet elevation and consists of magnetite, dike rocks and basalt in an irregular pattern. The B zone consists of two small bodies of magnetite, 12 and 6 metres across, at 701 metres elevation on the ridge (Minister of Mines Annual Report 1962).

Work History

In 1974, Texada Mines completed a program of rock sampling, geological mapping, trenching and a ground magnetometer survey on the area as the Lit 1-56 claims. In 1978, Geo-Lon Ventures acquired the property. In 1984, Brinco Mining Ltd. optioned the property from Jim McDonald as part of a larger property extending north, south and east (see Iron Cap [MINFILE 092L 228] and Fang [MINFILE 092L 265]). The company conducted detailed geological mapping near Hart Lake on the Bozo 4 claim and reconnaissance mapping on the eastern portion of the claim.

Bibliography
EMPR AR 1961-100; *1962-98
EMPR ASS RPT 5375, 6831, 12913
EMPR PF (Eastwood, P. & Adamson, R.S. (1962): Rio Tinto, Zone A & D Geology)
EMR MP CORPFILE (Rio Tinto Canadian Exploration Ltd.)
GSC ANN RPT 1886
GSC MAP 4-1974; 255A; 1552A
GSC OF 9; 170; 463
GSC P 69-1A; 70-1A; 72-44; 74-8; 79-30
GSC SUM RPT 1913; 1920A
Carson, D.J.T., (1968): Metallogenic Study of Vancouver Island with emphasis on the Relationship of Plutonic Rocks to Mineral Deposits, Ph.D. Thesis, Carleton University, Ottawa
Sangster, D.F., (1964): The Contact Metasomatic Magnetite Deposits of Southwestern British Columbia, Ph.D. Thesis, University of British Columbia

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