New atlas charts
Resource explorers, mining companies, researchers and the public will be able to more closely investigate what geological structures lie beneath Australia with the release of an atlas of Australia's deep seismic reflection profiles.
what lies beneath
In a joint venture between Geoscience Australia and the Australian National University, images of seismic reflection data that were collected over more than 30 years have been compiled into a single publication.
The data have been obtained in six Australian States and the Northern Territory using explosives and, more recently, Vibroseis vibrator trucks. Equipment on these vehicles transmits sound waves into the Earth, some of which are reflected back to the surface from deep structures or major rock boundaries.
The compilation includes a number of large-scale reflection transect groups of 1000 kilometres or more that link across major geological provinces and an extensive bibliography of reports and relevant publications.
The atlas has been published as part of the UNCOVER initiative which identifies that improved information about the sub-surface is a prerequisite for extending exploration in Australia into areas with sedimentary cover.
Geoscience Australia's predecessor, the Bureau of Mineral Resources, started experimental seismic reflection probing in the late 1950s and expanded this work during the 1960s to 1980s with major profiling undertaken in southern Queensland. The atlas presents sections from the earliest phase of digital recording, which was first used in 1976.
The Deep Crustal Seismic Reflection Profiling Australia 1978-2011 atlas is available at this PS News link.
Data associated with the atlas is available at this PS News link.
Edition 379, 17 September 2013