Time domain spectral IP measurements from the Rosebery mine

Abstract

The Rosebery mine is a volcanogenic massive sulphide deposit located on the west coast of Tasmania. Before mining, the deposit contained in excess of 15 Mt of ore with grades averaging 18% zinc, 5.5% lead, 0.5% copper, 187 g/t silver and 3.8 g/t gold. The mine lies in a sedimentary sequence within the Cambrian Mt Read Volcanics and the sulphides occur in association with (pyrite-bearing) 'Black Shales', within altered and pyritized 'Host Rocks'. The 'Footwall Schists' are siliceous and also contain disseminated pyrite. The hanging wall 'Massive Pyroclastics' are unaltered (Fig. 1).