The Tas 51 occurrence is located at an elevation of approximately 960 metres, near the saddle of a low ridge separating tributaries of Kleedlee and Taslincheko creeks and approximately 7 kilometres east-southeast of the east end of Inzana Lake.

The region is underlain by sedimentary and volcanic rocks of the Upper Triassic to Lower Jurassic Takla Group within the Quesnel terrane. The group comprises the informally named Inzana Lake, Rainbow, Witch Lake and Chuchi Lake formations. The Takla Group rocks have been intruded by Upper Triassic to Lower Jurassic syenitic to monzonitic intrusive rocks.

The Inzana Lake Formation is a sequence of epiclastic sediments derived from a volcanic source. It is underlain by fine-grained slates and sediments of the Rainbow Formation derived (in part) from a continental source. In turn, it is overlain by augite porphyry flows and agglomerates of the Witch Lake Formation and the subaerial maroon and green flows of the Chuchi Lake Formation.

Locally, an altered hornblende-biotite porphyry(?) hosts up to 20 per cent disseminated pyrite with trace chalcopyrite.

In 1998, a rock sample (Tas 51) assayed 1.114 gram per tonne gold and 0.317 per cent copper (Assessment Report 25839).

Work History

The area has been explored in conjunction with the nearby Tas East (MINFILE 093K 080) occurrence and a completed exploration history can be found there.