High Precision U/Th Dating of First Polynesian Settlement

Burley, David, Weisler, Marshall I. and Zhao, Jian-xin (2012) High Precision U/Th Dating of First Polynesian Settlement. PLoS One, 7 11: e48769-1-e48769-5. doi:10.1371/journal.pone.0048769

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Author Burley, David
Weisler, Marshall I.
Zhao, Jian-xin
Title High Precision U/Th Dating of First Polynesian Settlement
Journal name PLoS One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2012-11
Year available 2012
Sub-type Article (original research)
DOI 10.1371/journal.pone.0048769
Open Access Status DOI
Volume 7
Issue 11
Start page e48769-1
End page e48769-5
Total pages 6
Place of publication San Francisco, CA, United States
Publisher Public Library of Science
Collection year 2013
Language eng
Formatted abstract
Previous studies document Nukuleka in the Kingdom of Tonga as a founder colony for first settlement of Polynesia by Lapita peoples. A limited number of radiocarbon dates are one line of evidence supporting this claim, but they cannot precisely establish when this event occurred, nor can they afford a detailed chronology for sequent occupation. High precision U/Th dates of Acropora coral files (abraders) from Nukuleka give unprecedented resolution, identifying the founder event by 2838±8 BP and documenting site development over the ensuing 250 years. The potential for dating error due to post depositional diagenetic alteration of ancient corals at Nukuleka also is addressed through sample preparation protocols and paired dates on spatially separated samples for individual specimens. Acropora coral files are widely distributed in Lapita sites across Oceania. U/Th dating of these artifacts provides unparalleled opportunities for greater precision and insight into the speed and timing of this final chapter in human settlement of the globe.
Keyword Chronology
Thorium
Uranium
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Social Science Publications
Centre for Microscopy and Microanalysis Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
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