Robust chronological reconstruction for young speleothems using radiocarbon

We have studied two young speleothems, SC4 from Smiths Cave (Christmas Island, eastern Indian Ocean) and WM7 from Wollondilly Cave (Wombeyan caves, SE Australia). Attempts to date these speleothems by the Th/U method have proved unsuccessful with some age reversals for SC4 due to multiple sources of...

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Bibliographic Details
Published in:Quaternary geochronology 2012-12, Vol.14, p.67-80
Main Authors: Hua, Quan, McDonald, Janece, Redwood, Dale, Drysdale, Russell, Lee, Sharen, Fallon, Stewart, Hellstrom, John
Format: Article
Language:English
Subjects:
Age-depth modelling
Bayesian statistics
Chronology
Dead carbon fraction
Radiocarbon dating
Speleothem
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Summary:We have studied two young speleothems, SC4 from Smiths Cave (Christmas Island, eastern Indian Ocean) and WM7 from Wollondilly Cave (Wombeyan caves, SE Australia). Attempts to date these speleothems by the Th/U method have proved unsuccessful with some age reversals for SC4 due to multiple sources of non-authigenic Th. This method has also resulted in imprecise ages for WM7 because of low U concentrations (
ISSN:1871-1014
1878-0350
DOI:10.1016/j.quageo.2012.04.017