The Lorex occurrence is located approximately 1.7 kilometres north of the east end of Pimainus Lakes.

The area lies within the central core of the Upper Triassic to Lower Jurassic Guichon Creek Batholith and is underlain by Bethsaida phase quartz monzonite to granodiorite. This rock is slightly porphyritic, coarse-grained, and characteristically contains large books of biotite and subrounded quartz phenocrysts. The Bethsaida rocks are intruded by pink aplite dikes 5 to 10 centimetres wide, many of which trend north.

Hydrothermal alteration is generally weak. There is a weak epidote-calcite zone in the northern part of the property. Very weak argillization, consisting of chlorite, sericite, and kaolinite, is widespread. Some minor secondary potassium feldspar is reported.

Copper mineralization on the Lorex 105, 107, 109, 112, and 134 claims consists of trace amounts of bornite, malachite and chalcopyrite associated with weak argillic alteration. Sulphides occur as thin coatings on fracture planes (Assessment Report 5888).

Work History

In 1969, Northlode Exploration Ltd. completed a program of soil sampling and a 24.0 line-kilometre ground magnetic survey on the area as the Lorex claims.

In 1970, Great Plains Development Co. Ltd. completed a program of soil sampling, geological mapping, a 34.4 line-kilometre ground magnetic survey and a 75.3 line-kilometre induced polarization survey on the area as the Lorex and Royal claim groups.

In 1975 and 1976, Lornex Mining Corp. Ltd. completed a program of geological mapping and a ground magnetic survey on the Lorex and Ross claims.

In 1980, Lornex Mining Corp. Ltd. completed 20 percussion drill holes, totalling 2127.5 metres, and one diamond drill hole, totalling 148 metres, on the area as the Bear, Dawn and J.D.G. claims. The following year, 14 percussion drill holes, totalling 1624.6 metres, were completed on the Dawn, Lynn and Bear claims.