Cornwall limestone

The Cornwall Limestone prospect is located just west of Ashcroft, BC and immediately west of the Trans-Canada Highway. The Property consists of 2 claims totalling 265.94 ha. A great deal of exploration has been completed to the south on the Cornwall Limestone prospect to the order of 4 million dollars spent over the decades with at least 10,000m of drilling completed in 79 holes on the Red Hills Property.

A lens of limestone forms a north trending 400 metre long by 180 metre wide, double crested hill on the north side of Cornwall Creek, 3 kilometres due west of Ashcroft. The lens lies in the Eastern Belt of the Carboniferous to Jurassic Cache Creek Complex, consisting of a melange of chert, argillite, limestone, greenstone and ultramafic blocs of Pennsylvanian to Triassic age. A 46-metre thick bed of shale, argillite and quartzite striking 125° and dipping 65° northeast is exposed along the central depression.

The hill is comprised of uniform, medium grained, light grey to mottled limestone with a few scattered streaks of chert and some irregular patches of dolomite that become more frequent on the north side of the deposit. Thin films of rusty weathering calcareous shale are also present in the limestone. A 152.4-metre long chip sample across the top of the south crest analysed 55.12% CaO, 0.31% Mg), 0.34% insoluble, 0.52% R2O3, 0.03% Fe2O3, 0.011% MnO, 0.135% P2O5, nil sulphur and 43.55% ignition loss (Minister of Mines Annual Report 1958, page 92, sample 9).

Sampling of the limestone in 1991 yielded weighted averages of up to 54.55% CaO, 0.20% MgO and .050% SiO2 across 20 metres (Assessment Report 22278). In 1992 0.8 kilometre of magnetometer survey was completed and 49 samples collected and analysed.