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https://hdl.handle.net/2440/62048
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DC Field | Value | Language |
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dc.contributor.author | King, R. | - |
dc.contributor.author | Backe, G. | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Australian Journal of Earth Sciences, 2010; 57(7):1005-1012 | - |
dc.identifier.issn | 0812-0099 | - |
dc.identifier.issn | 1440-0952 | - |
dc.identifier.uri | http://hdl.handle.net/2440/62048 | - |
dc.description.abstract | The Hammerhead Delta-Deepwater Fold-Thrust Belt is located in the Ceduna Sub-Basin of the Bight Basin, offshore southern Australia. It is synonymous with the Hammerhead Supersequence and consists of three, Campanian to Maastrichtian, deltaic sediment packages. The Hammerhead Delta-Deepwater Fold-Thrust Belt is a short-lived gravity-gliding system that exhibits a distinctive spoon-shape in cross-section. The system detaches on a master horizon at the top of the Tiger Formation. Finite Element Method based two-dimensional restorations show that the Hammerhead Delta-Deepwater Fold-Thrust Belt is a near-balanced system with near equal amounts of up-dip extension and down-dip compression. Overall, there is only 2.4% additional extension in the Hammerhead Delta-Deepwater Fold-Thrust Belt. This near-balanced system is unusual in comparison with other passive margin Delta-Deepwater fold-thrust belts, which generally demonstrate large amounts of extension compared with shortening, due to the regional-scale progradational nature of the systems. The results suggest that sediment input to the Hammerhead Delta-Deepwater Fold-Thrust Belt was not sufficient to result in the regional-scale progradation of fault activity and that the sediment supply shutdown before the system could develop in an extensive passive margin Delta-Deepwater fold-thrust belt, hence demonstrating that it is sediment supply that drives ongoing gravitational deformation in Delta-Deepwater fold-thrust belts and not slope gradient. | - |
dc.description.statementofresponsibility | R. C. King and G. Backe | - |
dc.language.iso | en | - |
dc.publisher | Taylor & Francis Ltd. | - |
dc.rights | © 2010 Informa plc | - |
dc.source.uri | http://dx.doi.org/10.1080/08120099.2010.509409 | - |
dc.subject | Hammerhead Delta-Deepwater Fold-Thrust Belt | - |
dc.subject | Bight Basin | - |
dc.subject | deltaic tectonics | - |
dc.subject | deepwater fold-thrust belt | - |
dc.title | A balanced 2D structural model of the Hammerhead Delta-Deepwater Fold-Thrust Belt, Bight Basin, Australia | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1080/08120099.2010.509409 | - |
dc.relation.grant | ARC | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | King, R. [0000-0001-9160-996X] | - |
Appears in Collections: | Aurora harvest Australian School of Petroleum publications |
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