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Radiocarbon Dating in the Mariana Islands

Author(s): Fiona Petchey ; Geoffrey Clark ; Patrick O'Day ; Richard Jennings

Year: 2017

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Summary

One of the most enigmatic human dispersals into the Pacific is the colonisation of the Mariana Islands. Here the interpretation of radiocarbon (14C) dates from early settlement sites are hotly debated. One interpretation suggests the Marianas were colonised directly from the northern Philippines around ~3500 BP. However, the age of one of the earliest Mariana sites; Bapot-1, has recently been revised down to ~3200-3080 cal. BP following research by Petchey et al. (in press) which demonstrated that 14C depleted waters (hardwaters) had been incorporated into the estuarine Anadara antiquata shells, but not into shells belonging to reef dwelling animals. This research has demonstrated the importance of integrating radiocarbon, environmental and zoological information when building island chronologies. This presentation discusses our ongoing research into the marine 14C offsets in this region.


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Cite this Record

Radiocarbon Dating in the Mariana Islands. Fiona Petchey, Geoffrey Clark, Patrick O'Day, Richard Jennings. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 430803)


Keywords

Geographic Keywords
Oceania


Spatial Coverage

min long: 111.973; min lat: -52.052 ; max long: -87.715; max lat: 53.331 ;

Record Identifiers

Abstract Id(s): 15250

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America