Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/62048
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dc.contributor.authorKing, R.-
dc.contributor.authorBacke, G.-
dc.date.issued2010-
dc.identifier.citationAustralian Journal of Earth Sciences, 2010; 57(7):1005-1012-
dc.identifier.issn0812-0099-
dc.identifier.issn1440-0952-
dc.identifier.urihttp://hdl.handle.net/2440/62048-
dc.description.abstractThe 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.statementofresponsibilityR. C. King and G. Backe-
dc.language.isoen-
dc.publisherTaylor & Francis Ltd.-
dc.rights© 2010 Informa plc-
dc.source.urihttp://dx.doi.org/10.1080/08120099.2010.509409-
dc.subjectHammerhead Delta-Deepwater Fold-Thrust Belt-
dc.subjectBight Basin-
dc.subjectdeltaic tectonics-
dc.subjectdeepwater fold-thrust belt-
dc.titleA balanced 2D structural model of the Hammerhead Delta-Deepwater Fold-Thrust Belt, Bight Basin, Australia-
dc.typeJournal article-
dc.identifier.doi10.1080/08120099.2010.509409-
dc.relation.grantARC-
pubs.publication-statusPublished-
dc.identifier.orcidKing, R. [0000-0001-9160-996X]-
Appears in Collections:Aurora harvest
Australian School of Petroleum publications

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