Expanding the utility of Uranium-series dating of speleothems for archaeological and palaeontological applications

St Pierre, E, Zhao, JX and Reed, E (2009) Expanding the utility of Uranium-series dating of speleothems for archaeological and palaeontological applications. Journal of Archaeological Science, 36 7: 1416-1423. doi:10.1016/j.jas.2009.02.004


Author St Pierre, E
Zhao, JX
Reed, E
Title Expanding the utility of Uranium-series dating of speleothems for archaeological and palaeontological applications
Journal name Journal of Archaeological Science   Check publisher's open access policy
ISSN 0305-4403
Publication date 2009-07-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jas.2009.02.004
Open Access Status Not yet assessed
Volume 36
Issue 7
Start page 1416
End page 1423
Total pages 8
Editor John P Grattan
Karl W Butzer
Richard G Klein
Place of publication London England
Publisher Academic Press Ltd Elsevier Science Ltd
Language eng
Subject C1
2101 Archaeology
970104 Expanding Knowledge in the Earth Sciences
Abstract Uranium-series (U-series) dating of speleothems is frequently used for palaeoclimate studies but its archaeological and palaeontological applications are limited to stratigraphically significant speleothem formations, such as flowstones, to provide maximum and minimum temporal points. This study targeted soda straw stalactites for U-series dating. In contrast. to other speleothem formations, soda straw stalactites are fragile, have typically short life spans (usually only years but rarely up to a few hundred years) and are frequently incorporated into cave deposits. Results of thermal ionisation mass spectrometry (TIMS) U-series dating of soda straw stalactites from palaeontological excavations at Blanche Cave, South Australia, show that small, dense, clean straws tend to yield ages closest to the time of stratigraphic deposition. A correlation between soda straw U-series ages and radiocarbon ages of charcoal from the site is shown. Multiple soda straw age determinations for a single stratigraphic unit are required in order to verify age concordance. In conjunction with other dating methods, U-series dating of soda straw stalactites may help to significantly constrain the age of stratigraphic units and associated archaeological and palaeontological deposits in order to provide more robust chronologies. Here we advocate the collection of soda straw stalactites at future excavations of limestone cave sites. (C) 2009 Elsevier Ltd. All rights reserved.
Keyword Chronology
HOMINID SITE
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID LP0453664
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Centre for Microscopy and Microanalysis Publications
 
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Created: Thu, 03 Sep 2009, 18:00:07 EST by Mr Andrew Martlew on behalf of Centre for Microscopy and Microanalysis