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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/6625

Title: Extended residence times for foraminifera in a marine-influenced terrestrial archaeological deposit and implications for palaeoenvironmental reconstruction.
Authors: Nagel, T
Rosendahl, D
Hua, Q
Moss, P
Sloss, C
Petchey, F
Ulm, S
Keywords: HOUSES
FORAMINIFERA
TERRESTRIAL ECOSYSTEMS
ARCHAEOLOGY
ISOTOPE DATING
SITE SELECTION
Issue Date: 1-Feb-2016
Publisher: Elsevier
Citation: Nagel, T., Rosendahl, D., Hua, Q., Moss, P., Sloss, C., Petchey, F., & Ulm, S. (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: http://dx.doi.org/10.1016/j.jasrep.2015.11.008
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. © 2015, Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.jasrep.2015.11.008
http://apo.ansto.gov.au/dspace/handle/10238/6625
ISSN: 2352-409X
Appears in Collections:Journal Articles

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