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Integrating 3D geophysical data to a depth of 100 km

The South Australian Geophysical Reference Model (SAGRM) integrates 3D geophysical data that covers the entire state to a depth of 100 km. The model incorporates new gravity, magnetic, and magnetotelluric inversions with existing deep crustal reflection seismic surveys and seismological velocity models into an integrated 3D model.

The South Australian Geophysical Reference Model forms part of a collaborative project between the Department of State Development (DSD), the University of Adelaide (UoA), Geoscience Australia and the Deep Exploration Technologies Cooperative Research Centre (DET CRC). The South Australian Geophysical Reference Model is a valuable new research and exploration tool. The model enables users to visualise, query and interpret the state’s vast archive of geophysical datasets in a full 3D environment.

This is the first time a model of this size, complexity and completeness of geophysical data has been produced for the entire State. The model is a significant contribution to the lithospheric architecture theme of the UNCOVER initiative. The SAGRM is designed to be readily updateable and will incorporate new datasets, such as AusLamp, AusArray and the Gawler Craton magnetic survey, as they become available.

Gravity

Gravity data
Gravity iso-surface data

Magnetics

Magnetics data
Magnetics iso-surface data


Download the South Australian Geophysical Reference Model

Note: these models are presented as a 'proof of concept' only and their accuracy (spatial or otherwise) should not be relied upon for exploration or other decision making processes.

Publication Date: August 2016

For more information, contact:

Simon van der Wielen
Senior Geologist
+61 8 8204 1021
simon.vanderwielen@sa.gov.au

George Gouthas
Project Geoscientist
+61 8 8463 3073
george.gouthas@sa.gov.au

Dr Stephan Thiel
Senior Geophysicist
+61 8 8204 1181
stephan.thiel@sa.gov.au