Geological mapping conducted in an area surrounding Hyde, Central Otago, indicated that chlorite subzone schist underlay a succession of Tertiary rocks consisting of marine and freshwater sediments of the Stranraer Group, ...

In the Past, only a brief outline of the Mill has been published – Chem. Eng. Min. Mag. – Nov. 1939 – and this investigation has been the more interesting, not only on account of the efficient manner in which the gold is ...