A palaeomagnetic study of Empress 1A, a stratigraphic drillhole in the Officer Basin: evidence for a low-latitude position of Australia in the Neoproterozoic

A palaeomagnetic study of the continuously cored Empress 1A deep stratigrap hic drillhole in the Officer Basin, Western Australia, has revealed a stabl e high-temperature remanence component for the Early Palaeozoic Table Hill Volcanics, and the Neoproterozoic Lupton, Steptoe, Kanpa, Hussar, and Brown e Formations. The low inclination of the remanence supports a low-latitude position for Australia in the Neoproterozoic and Early Palaeozoic. These pa laeolatitudinal estimates are consistent with the results of previous palae omagnetic studies of Australian Neoproterozoic rocks, and support a low-lat itude position during deposition of glaciogenic rocks in the Marinoan Lupto n Formation. (C) 2001 Elsevier Science B.V. All rights reserved.