The Petrie barite occurrence is located on a north-south–trending ridge, south of Petrie Creek and approximately 6 kilometres northeast of the southeast end of Redfern Lake.

Regionally, the area is underlain by Devonian and Carboniferous (Mississippian) Besa River Formation phyllitic shale, overthrust from the west by Middle Devonian Dunedin Formation carbonates and Lower to Middle Devonian Stone Formation dolomites.

Approximately 500 metres east of this thrust fault, a 5.5-metre band of massive barite is hosted within the Besa River Formation phyllitic shale. The barite is apparently concordant with the bedding and parallel to the fault.

Work History

In 1972, Vestor Explorations Ltd. completed a program of geological mapping and soil sampling on the Redfern Lake area as the Chilly, Damn, Egg and Foo claims. In 1973, Rio Tinto Exploration Canada Inc. completed a program of geological mapping, minor rock sampling, a 36.2 line-kilometre induced polarization survey, a 30.5 line-kilometre ground magnetic survey and a photogeological study on the Foo, Egg, Chilly, Vista and Damn claim groups. In 1974, Rio Tinto Canadian Exploration Ltd. completed nine diamond drill holes, totalling 608.0 metres, on the Vestor property. The following year, a further program of geological mapping and soil sampling was completed on the property. In 1979, Teck Explorations Ltd. completed a program of geological mapping and geochemical (rock and soil) sampling on the Vestor property.