Uranium-series dating of speleothems and bones from Victoria Cave, Naracoorte, South Australia

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Authors:Ayliffe, L. K.; Veeh, H. H.
Author Affiliations:Primary:
Flinders Univ. South Aust., Dep. Earth Sci., Adelaide, South Aust., Australia
Volume Title:Isotopes in palaeoenvironments
Volume Authors:Chivas, Allan R., editor
Source:Chemical Geology; Isotope Geoscience Section, 72(3), p.211-234; 12th International sedimentological congress session on Isotopes in palaeoenvironments and dating, Canberra, Australia, Aug. 24-30, 1986, edited by Allan R. Chivas. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0168-9622
Publication Date:1988
Note:In English. 37 refs.; illus. incl. 3 tables, sketch map
Summary:The age distribution of the speleothem samples shows that growth stopped or slowed during the penultimate glaciation. This agrees with observations from several other caves and suggests that glacial conditions were unfavourable for speleothem formation. The U-series ages of fossil bones are younger than those of associated speleothems indicating secondary addition of U to the bones, which was probably not a single event but a succession of short events. The absolute age control provided by the speleothems, combined with the minimum age limits for individual bones, suggests that the bone deposit was formed prior to the last interglacial period, most probably during Oxygen-isotope Stage 6. [R.E.S.]
Subjects:Absolute age; Bones; Calcite; Carbonates; Caves; Cenozoic; Climate effects; Dates; Geochronology; Paleoclimatology; Quaternary; Solution features; Speleothems; Th/U; Uranium disequilibrium; Australasia; Australia; South Australia; Naracoorte; Victoria Cave
Abstract Numbers:89M/0058
Record ID:1988044748
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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