The Officer Basin is an elongate intracratonic depression underlying western South Australia and eastern Western Australia, and bounded by the Musgrave, Gawler and Yilgarn Blocks. Its southern and eastern margins are overlapped by the Tertiary Eucla...

A review made of the literature covering post-Precambrian volcanism in South Australia has indicated that less well-known, minor, mainly acid to intermediate volcanic rocks of the lower Palaeozoic are separated by a wide time gap from the better known...

This progress report summarises the field characteristics of the major rock types of the BIRKSGATE 1:250 000 mapsheet area. The crystalline basement rocks are granite gneisses and granites of the Musgrave Block. These are of uncertain age and are...