The Wudtsi (Westmin) occurrence is located at an elevation of approximately 1230 metres on a north-facing slope, south of Valleau Creek and approximately 5.4 kilometres north of the north shore of Wudtsi Lake.
At the headwaters of Valleau Creek, approximately 5 kilometres north of the south end of Wudtsi Lake, a small, hybrid stock intrudes the volcanic sediments of the Upper Triassic Inzana Lake Formation of the Middle Triassic to Lower Jurassic Takla Group. The stock is a varitextured diorite and gabbro body and is probably of similar age to the Takla rocks. A hornfelsed mesocratic hornblende diorite phase contains pyrrhotite-bearing quartz stringers that yielded 190 parts per million copper when analysed (Open File 1993-3). Epiclastic sandstone and siltstone hosts are hornfelsed and potassically(?) altered and contain disseminated pyrite.
A widespread area of carbonatization and foliation within the volcanic rocks on the eastern side of Westmin’s 1992 grid has within it areas of disseminated pyrite mineralization, as well as weak stockworks of quartz-calcite veinlets which contain trace amounts of chalcopyrite. An extremely bleached example of the carbonatized rocks at one location contains minor disseminations of malachite(?) along with pyrite.
Work History
In 1990 and 1991, Westmin Mines Ltd. completed programs of geochemical (soil and stream sediment sampling), geological mapping and a 1100 line-kilometre airborne geophysical (electromagnetic and magnetic) survey on the area as apart of the Wudleau North property.
The northern part of the large Wudleau claim block, which covered the Wudtsi, was examined by owner Westmin Resources in 1992. The work included linecutting, rock (28 samples) and soil (309 samples), sampling, gradient-style induced polarization surveying (31.8 kilometres) and geological mapping. The work identified a significant multi-element geochemical and induced polarization chargeability anomaly associated with carbonatized and foliated mafic volcanic rocks on the east side of the Wudleau North Grid covering an area of approximately 1.5 by 0.8 kilometre. A rock sample (560216) from the Wudtsi occurrence assayed 0.425 gram per tonne gold (Assessment Report 22757).
In 2005, Serengeti Resources Inc. carried out a 530-kilometre airborne magnetic-radiometric survey and collected 12 rock samples on their Valleau and Germansen properties. Also in 2005, Redton Resources Inc. completed a 5764.0 line-kilometre airborne magnetic and electromagnetic survey on the area as the Takla-Redton property. In 2006, a program of geological mapping and geochemical (rock, silt, and soil) sampling was completed on the property.
In 2012, a program of soil sampling was completed on the area as the Vall 1-3 claims. This work identified anomalous gold-in-soils (up to 1.425 parts per million) located approximately 400 metres south-southeast of the Wudtsi (Westmin) occurrence at an elevation of approximately 1310 metres (Assessment Report 33413).
In 2013, a program of prospecting, minor hand trenching and geochemical (rock and soil) sampling was completed on the Vall 1 claim. Sampling of small hand trenches and pits in the area of the 2012 soil anomalies identified fine-grained, iron-carbonate–altered rock cut by hairline to 0.10-metre wide quartz veins hosting pyrite yielding up to 2.09 grams per tonne gold (sample RGKVR-011; Assessment Report 34449).
In 2015 and 2016, further programs of rock and soil sampling were completed on the area. A 2.0-metre chip sample (5677594) from the area sampled in 2012 and 2013 of a silica-carbonate–altered outcrop hosting a 0.15-metre wide quartz vein, and pyrite yielded 0.41 gram per tonne gold, whereas a select grab sample (5677601) of a fine-grained, carbonate-chlorite-sericite–altered rock hosting stockworks of pyrite, galena, sphalerite, and trace arsenopyrite and chalcopyrite, taken approximately 200 metres east-northeast of the Wudtsi zone, assayed 0.131 gram per tonne gold, 19.8 grams per tonne silver, 0.38 per cent lead and 0.44 per cent zinc (Assessment Report 36369).
