As a counterpoint to Red Gate we have secured the Roger River gold project in Tasmania. Unlike Western Australian gold deposits Roger River belongs to the epithermal family of deposits. Roger River comprises uneroded, hot spring related silicification, argillic alteration and associated diatreme breccias with a strike length of at least 7 km in a classic basin and range setting. The system is controlled by the regional scale Roger River Fault (RRF), a reverse fault and the most obvious source of the mineralising fluids. It and its numerous splay faults, truncate very favourable reactive carbonate host rocks and it exhibits the same trace element geochemical suite including Au, As and Hg common to these deposits. In these systems, the often lucrative fine grained, pyritic Au zones can be attributed to subtle mineralogical changes in the host limestone unit.
The predominantly carbonate-rich host rocks at Roger River are ideal for the emplacement of hot spring related epithermal mineralisation, either disseminated or as structurally controlled mineralised zones which can form economic deposits. The tenement has seen only limited stratigraphic drill testing, and an early program of air core and/or RC drilling into existing untested geochemical and structural targets, is proposed.