Journal article
Cenozoic deformation in the Otway Basin, southern Australian margin: Implications for the origin and nature of post-breakup compression at rifted margins
SP Holford, AK Tuitt, RR Hillis, PF Green, MS Stoker, IR Duddy, M Sandiford, DR Tassone
Basin Research | Published : 2014
DOI: 10.1111/bre.12035
Abstract
There is growing recognition that pulses of compressive tectonic structuring punctuate the post-breakup subsidence histories of many 'passive' rifted continental margins. To obtain new insights into the nature and origin of compression at passive margins, we have conducted a comprehensive analysis of the post-breakup (<43 Ma) deformation history of the offshore Otway Basin, southern Australian margin, using a regional seismic database tied to multiple wells. Through mapping of a number of regional intra-Cenozoic unconformities we have determined growth chronologies for a number of major anticlinal structures, most of which are ̃NE-SW-trending folds that developed during mild inversion of syn..
View full abstractGrants
Awarded by Natural Environment Research Council
Funding Acknowledgements
This publication was supported by ARC Discovery Project DP0897612, and forms TRaX record #264. We gratefully acknowledge PGS for their generous donation of the SAMDA, DMITRE and DPI Victoria for access to additional seismic data, and SMT/IHS for provision of KINGDOM. We thank Chris Jackson for editorial assistance, reviewers Tony Dore and Jaume Verges for their constructive feedback, and colleagues in the S 3 Research Group for useful discussions on the stress and neotectonics of southeastern Australia. MSS publishes with the permission of the Executive Director, British Geological Survey (Natural Environment Research Council).