The application of geophysics to the discovery of the Hellyer ore deposit, Tasmania

In August 1983, a drill hole aimed at a deep conductor in Northwestern Tasmania intersected 24 m of high grade base and precious metal mineralization at a depth of 120 m. This intersection proved to be the small, shallow end of the 15 Mt Hellyer deposit (Sise & Jack 1984; Eadie & Silic 1984). The ore body is covered by greater than 100 m of volcanics, making the story of its discovery technically impressive.