Extended residence times for foraminifera in a marine-influenced terrestrial archaeological deposit and implications for palaeoenvironmental reconstruction

Nagel, Texas, Rosendahl, Daniel, Hua, Quan, Moss, Patrick, Sloss, Craig, Petchey, Fiona and Ulm, Sean (2016) Extended residence times for foraminifera in a marine-influenced terrestrial archaeological deposit and implications for palaeoenvironmental reconstruction. Journal of Archaeological Science: Reports, 5 25-34. doi:10.1016/j.jasrep.2015.11.008


Author Nagel, Texas
Rosendahl, Daniel
Hua, Quan
Moss, Patrick
Sloss, Craig
Petchey, Fiona
Ulm, Sean
Title Extended residence times for foraminifera in a marine-influenced terrestrial archaeological deposit and implications for palaeoenvironmental reconstruction
Journal name Journal of Archaeological Science: Reports
ISSN 2352-409X
Publication date 2016-02-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.jasrep.2015.11.008
Open Access Status Not Open Access
Volume 5
Start page 25
End page 34
Total pages 10
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2017
Language eng
Formatted abstract
Accelerator Mass Spectrometry (AMS) radiocarbon dating and taphonomic grading was undertaken on foraminifera preserved in the archaeological shell matrix site of Thundiy, Bentinck Island, southern Gulf of Carpentaria, Australia. Foraminifera were assigned to one of six taphonomic grades ranging from pristine to severely abraded. AMS dating demonstrates a weak relationship between preservation status and age. Foraminifera ages are inconsistent with multiple ages on marine shell from the same deposit implying significant sediment transport system residence ages (the time between death of the organism and final deposition) for foraminifera in the deposit. Results demonstrate that foraminifera cannot be assumed to be contemporary with other components of the sedimentary context in which they occur, indicating that caution is required in interpreting chronologies and palaeoenvironmental records based on foraminifera recovered from highly dynamic depositional settings. Findings point to the potential of foraminifera AMS dating of coastal archaeological deposits to contribute to evaluations of site integrity and chrono-stratigraphic analyses.
Keyword AMS radiocarbon dating
Foraminifera
Microfauna
Palaeoenvironmental reconstruction
Shell midden
Site formation processes
Taphonomy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
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