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Establishing robust chronologies for models of modern human dispersal in Southeast Asia: implications for arrival and occupation in Sunda and Sahul

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posted on 28.03.2022, 11:31 by Lani M. Barnes
Models that reconstruct modern human dispersal across the great arc from Africa to Australia require solid chronologies from key sites in Southeast Asia. Sunda, the continental landmass that connects Asia to Southeast Asia and Australasia, contains important evidence to constrain both arrival and occupation of humans en route to Australia. This evidence, however, is rarely associated with robust chronologies due to an absence of stratigraphic consistency, low precision, reproducibility or accuracy. In this research, optimally stimulated luminescence (OSL) dating techniques were applied to three archaeological sites in Southeast Asia that encompass both arrival and occupation: Tam Pa Ling and Nam Lot in northern Laos and Tham Lod rockshelter in north-western Thailand. This application provided solid independent age estimates to confirm the integrity of the sequences. The timing of modern human arrival at Tam Pa Ling was identified as > 46 ka and arrival at Nam Lot after 50 ± 5 ka and before 46 ± 4 ka. Modern human occupation of Tham Lod was identified as occurring after 21 ± 4 ka and before 16 ± 2 ka. These robust chronologies have added evidence to understanding modern human arrival and occupation in Sunda. Furthermore these chronologies enable parallels to be drawn between the timing and archaeology of Late Pleistocene occupation in Sunda and Sahul. These similarities provide evidence to assess whether the Sunda occupants were the ancestors to the first Indigenous Australians.

History

Table of Contents

Chapter 1. Introduction -- Chapter 2. Establishing modern human presence in mainland Southeast Asia : the need for robust chronologies -- Chapter 3. Building from the previous research sites of Tam Pa Ling, Nam Lot and Tham Lod to establish robust chronologies -- Chapter 4. Methodology -- Chapter 5. Results -- Chapter 6. Discussion -- Chapter 7. Conclusion.

Notes

Theoretical thesis. Bibliography: pages 78-89

Awarding Institution

Macquarie University

Degree Type

Thesis MRes

Degree

MRes, Macquarie University, Faculty of Science and Engineering, Department of Environmental Sciences

Department, Centre or School

Department of Environmental Sciences

Year of Award

2015

Principal Supervisor

Kira Westaway

Rights

Copyright Lani M. Barnes 2014. Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Jurisdiction

Southeast Asia

Extent

1 online resource (vii, 127 pages) colour illustrations, colour maps

Former Identifiers

mq:53471 http://hdl.handle.net/1959.14/1135168