The Pam 11 (Bruce) occurrence is located at an elevation of approximately 320 metres on a north-facing slope, south of Dodd Lake and approximately 2.2 kilometres east of the east end of Ireland Lake.

The area is underlain by Cretaceous hornblende diorite and quartz diorite of the Coast Plutonic Complex, which have been intruded by later phases of granodiorite. The granodiorite has, in turn, been intruded by quartz feldspar porphyry and feldspar porphyry dikes. A few narrow andesite to basalt dikes cut all other rock types.

The granodiorite has been sericite-altered and hosts biotite, quartz sericite and pyrite. Silicification is associated with a quartz vein stockwork in the granodiorite as well as in an area containing lenses of quartz within brecciated granodiorite, parallel to a feldspar porphyry dike.

Veins, joints and dikes are controlled by a fracture system that trends 070 to 080 degrees and dips steeply north.

Pyrite and chalcopyrite, with minor pyrrhotite, magnetite and sphalerite, occur as disseminations within silicified granodiorite and in the quartz vein stockwork. The intensity of fracturing decreases away from the Main showing but pyrite-coated joints are still well developed 300 metres away. Pods and irregular masses of chalcopyrite also occur at the Main showing, trending 110 to 150 degrees and crosscutting the jointing. Diamond drilling in 1967, mostly in the vicinity of the main trench, included 16.5 metres of 0.25 per cent copper, whereas two samples from the main trench taken over a distance of 30 metres averaged 2.40 per cent copper (Caracas Mining Co., 1970 Prospectus, page 18).

Approximately 150 to 200 metres east of this occurrence, and on strike with it, chalcopyrite occurs as irregular masses near strongly silicified porphyritic granodiorite and quartz diorite.

Work History

In 1967, Falconbridge Nickel Mines Ltd. completed a program of geological mapping, soil sampling, ground geophysical (magnetic and electromagnetic) surveys, trenching and 14 drillholes, totalling 498.7 metres, on the area as the Bruce claims.

In 1971, Hanna Mining Co. completed a program of soil sampling and geological mapping on the area as the Bee, Dee, Bruce, Hi and Mars claims. In 1974 and 1975, the Redonda Syndicate completed programs of geological mapping, soil sampling, ground magnetic and induced polarization surveys and five diamond drill holes, totalling 702.0 metres, on the area as the Pam claims.

In 2017, Straightup Resources Inc. completed a program of geochemical (rock and soil) sampling on the area as the Hi-Mars property. A sample (No.32) from the Pam 11 occurrence area assayed 0.148 per cent copper and 0.056 per cent molybdenum (Straightup Resources Inc. [2018-06-24]: Technical Report, Hi-Mars Mineral Property, Southwest British Columbia, Canada).