Dampier Ridge, Tasman Sea, as a stranded continental fragment

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dc.creatorMcdougall, Ian
dc.creatorMaboko, Makenya A. H.
dc.creatorSymonds, Philip
dc.creatorMcCulloch, Malcolm T.
dc.creatorWilliams, I. S.
dc.creatorKudrass, H. R.
dc.date2016-05-12T15:22:54Z
dc.date2016-05-12T15:22:54Z
dc.date1994
dc.date.accessioned2018-03-27T08:57:07Z
dc.date.available2018-03-27T08:57:07Z
dc.descriptionFull text can be accessed http://www.tandfonline.com/doi/abs/10.1080/08120099408728150
dc.descriptionDredging of the Dampier Ridge recovered small fragments of granite, gabbro and sandstone. Dating of the igneous samples by the U-Pb, K-Ar and Rb-Sr methods yielded precise ages mainly in the range 250 to 270 Ma, mid-Permian. An imprecise Sm-Nd mineral age of approximately 310 Ma might reflect slightly earlier emplacement of the gabbro. A granitic fragment has a composition approximating that a manimum melt. Taken together with the Late Palaeozoic emplacement ages and other geochemical and geophysical data, the evidence strongly supports the conclusion that the Dampier Ridge is a continental fragment, formerly part of eastern Australia, with its present location a consequence of continential rifting and opening of the Tasman Basin by sea-floor spreading.
dc.identifierMcDougall, I., Maboko, M.A.H., Symonds, P.A., McCulloch, M.T., Williams, I.S. and Kudrass, H.R., 1994. Dampier Ridge, Tasman Sea, as a stranded continental fragment∗. Australian Journal of Earth Sciences, 41(5), pp.395-406.
dc.identifierhttp://hdl.handle.net/20.500.11810/2000
dc.identifier10.1080/08120099408728150
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2000
dc.languageen
dc.publisherTaylor and Francis
dc.subjectDampier Ridge
dc.subjectGeochemistry
dc.subjectGeochronology
dc.subjectIsotopic dating
dc.subjectMagmatism
dc.subjectTasman Basin
dc.titleDampier Ridge, Tasman Sea, as a stranded continental fragment
dc.typeJournal Article

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