Geophysically Imaging Paleoproterozoic Terrane Boundaries in the Unexposed Northern Gawler Craton, Marla Region

Graham Baines; David Giles; Peter Betts; Guillaume Backé

doi:10.1071/ASEG2009ab097

ISSN: 2202-0586
E-ISSN:

oa Geophysically Imaging Paleoproterozoic Terrane Boundaries in the Unexposed Northern Gawler Craton, Marla Region
Authors Graham Baines^a, David Giles^a, Peter Betts^b and Guillaume Backé^a
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^a Centre for Mineral Exploration Under Cover, School of Earth and Environmental Sciences,University of Adelaide,, South Australia, , 5005, *, ([email protected], ) ^b School of Geosciences, Australian Crustal Research Centre,Monash University
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2009, Issue ASEG2009 - 20th Geophysical Conference, Dec 2009, p. 1 - 5
DOI: https://doi.org/10.1071/ASEG2009ab097
- Published online: 01 Dec 2009

Abstract

Introduction

The northern Gawler Craton, South Australia holds the key to understanding the Palaeo- to Mesoproterozoic evolution of Australia and the geodynamic setting and significance of major mineralizing systems active at that time, particularly the iron-oxide copper gold (IOCG) mineralization of the Olympic Domain (~1580 Ma). Unfortunately, these basement rocks are buried beneath significant thicknesses of Neoproterozoic and younger sediments, such that that our understanding of their architecture, composition and evolution has to be derived from analysis of limited basement penetrating drill-holes and regional geophysical data. Here, we present an interpretation of the basement geology of the Marla Region as constrained by available drill-hole, seismic and potential field data.

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References

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Article Type: Research Article

Keyword(s): Crustal Evolution; Forward Modelling; Gawler Craton; Inversion; Potential Field Data

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oa Geophysically Imaging Paleoproterozoic Terrane Boundaries in the Unexposed Northern Gawler Craton, Marla Region

Abstract

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