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Was there mid Holocene habitation in Madagascar? A reconsideration of the OSL dates from Lakaton'i Anja

Published online by Cambridge University Press:  10 April 2019

Atholl Anderson
Atholl Anderson*
Affiliation:
Department of Archaeology and Natural History, Australian National University, Canberra ACT 2600, Australia (Email: atholl.anderson@anu.edu.au)
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Abstract

Optically stimulated luminescence (OSL) dating of deposits at the Lakaton'i Anja rockshelter site in Madagascar extends the chronology of human activity on the island back to 4500 BP. These results have roused archaeological and palaeoecological interest in the implications of mid Holocene human colonisation of remote islands in the Indian Ocean. There is, however, evidence of extensive bioturbation at the site, reflected in over-dispersion and other characteristics of the OSL data. It is argued here that OSL ages on minor sedimentary components indicate a much younger chronology consistent with radiocarbon dates for human activity no earlier than the first millennium AD.

Keywords

MadagascarLakaton'i AnjaOSL datingstratigraphic bioturbation
Type
Debate
Information
Antiquity , Volume 93 , Issue 368 , April 2019 , pp. 478 - 487
Copyright
Copyright © Antiquity Publications Ltd, 2019 

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