The TRI 10-11 (Nordling Creek) occurrence is located on a high ridge and steep slope north of Nordling Creek, approximately 5.5 kilometres northwest of the north end of Canswick Lake.
Regionally, the area is underlain by a conformable sequence of Silurian Nonda Formation, Lower Devonian Muncho-McConnell Formation, and Lower to Middle Devonian Stone Formation carbonates. To the east, this sequence is thrust over Middle Devonian Dunedin Formation carbonates and underlying Stone Formation strata. These are, in turn, overthrust onto Devonian to Carboniferous Besa River Formation shales.
Locally, mineralization occurs at a number of locations within Dunedin Formation limestone. At the main (TRI 10) zone, a barite-calcite–healed limestone breccia contains disseminated chalcopyrite and malachite. Approximately 60 metres east of the previous zone, a second barite breccia zone (TRI 11), dipping 80 degrees to the west, cuts east-sloping limestone beds and contains large blebs of galena and sphalerite.
In 1973, samples from the first zone yielded up to 2.0 per cent copper and samples from second zone yielded from 1 to 3 per cent lead with 5 to 12.4 per cent zinc (Assessment Report 4692).
In 1974, samples from a zone of mineralized boulders hosting disseminated chalcopyrite, galena and sphalerite in fragmental dark limestone with calcite-barite gangue, located approximately 1 kilometre to the northwest of the TRI 10-11 zones, yielded up to 1.1 per cent zinc, 1.1 per cent lead and 2.5 per cent copper (Samples F-147 and F-148; Assessment Report 5407).
Work History
During 1973 through 1975, Aquitane Company of Canada Ltd. completed programs of prospecting, geological mapping, geochemical (silt and soil) sampling and minor trenching on the area as the TRI, IRA, KEY, MEG and QYR claims.