The Tsay occurrence is situated 3.5 kilometres north-northeast of the east end of Wudsti Lake.
The occurrence is hosted by a regional-scale northwest-trending structure that extends 10 kilometres from the west end of Tsaydaychi Lake to the headwaters of Valleau Creek. The zone, 1.5 to 2 kilometres wide, lies entirely within the Upper Triassic Inzana Lake Formation (Takla Group) and is characterized by iron-carbonate and quartz-sericite alteration. Disseminated green mica (mariposite?) and pyrite occur in intensely altered, pale buff-coloured, foliated sediments.
The presence of anomalous arsenic values with carbonate- quartz-sericite alteration and mariposite suggests a listwanite association. The fault structure has potential for hosting gold-bearing quartz veins, and is thus an interesting regional exploration target. Placer gold in the area (Valleau Creek, 093N 053) may be related to this structure.
Work History
In 1969, reconnaissance mapping and sampling was performed on the area.
During 1990 through 1992, Westmin Mines Ltd. completed programs of geochemical (rock, soil and stream sediment sampling), geological mapping, a 31.8 line-kilometre induced polarization survey and a 1100 line-kilometre airborne geophysical (electromagnetic and magnetic) survey on the area as apart of the Wudleau North property
In 1993, a grab sample yielded 0.0135 per cent arsenic and 0.0098 per cent copper (Open File 1993-3).
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 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 0.32 gram per tonne gold) in the area of the Tsay occurrence (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. In 2015 and 2016, further programs of rock and soil sampling were completed on the area.