The Ric-7 occurrence is one of a number of zinc-lead showings located in Richards Creek valley.
Regionally, the valley is underlain by a conformable sequence of Lower to Middle Devonian Stone Formation dolomite, Middle Devonian Dunedin Formation micritic limestone and Devonian to Carboniferous Besa River Formation shale. This sequence is overthrust by a panel of Stone Formation and Dunedin Formation strata, which is in turn overthrust by a sequence of Cambrian to Ordovician Kechika Group, Ordovician Skoki Formation and Silurian Nonda Formation rock.
The occurrence, exposed over a 70 by 35 metre area, occurs in the Stone Formation thrust panel near the stratigraphic contact with the overlying Dunedin Formation. Seven zones of pyrite, marcasite, sphalerite and galena occur as irregular massive pods and veinlets along fractures. The veinlets occasionally coalesce into an irregular network of veins. White sparry calcite and quartz-filled cavities are associated with the mineralization.
Work History
In 1972 and 1973, Cominco Ltd. completed programs of geological mapping, geochemical sampling and at least 16 diamond drill holes, totalling 952.2 metres, on the area as the Ric claims. No assays were reported. In 2008, Douglas Herriott prospected and sampled the area as the Red Cat property. No assays were reported.