Authors / CoAuthors
Belford, D.J.
Abstract
Dredge and core samples of sediments recovered from the west Tasmanian margin, South Tasman Rise and the Lord Howe Rise, on R.V. Sonne, are of possible Eocene, late Oligocene, early and late Miocene, early and late Pliocene, and Pleistocene or younger ages. Reworked Paleocene and Eocene specimens occur in some cores and dredge samples of late Oligocene age. Some cores show a major stratigraphical break from late Oligocene to Pleistocene. The coiling direction of Turborotalia pachyderma was investigated as a possible method of correlation of younger cores, and also as an indicator of palaeoclimatic changes. No correlation between cores was possible using coiling curves, which indicate rapid and irregular changes in sea-water temperatures over small areas, assuming that the coiling direction of T. pachyderma is an indication of sea-water temperature.
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document
eCat Id
81238
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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- GA PublicationJournal
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
1989-01-01T00:00:00
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geoscientificInformation
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BMR Journal of Australian Geology and Geophysics 11:1:37-62
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