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Evaluating NAA, pXRF, and LIBS from the Perspective of Ochre from Gledswood Shelter 1, Queensland, Australia

Author(s): Neil Hauser ; Lynley Wallis ; Jenny Milligan ; Wayne Wilson ; Alan Watchman

Year: 2015

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Summary

Title: Evaluating NAA, pXRF, and LIBS from the Perspective of Ochre from Gledswood Shelter 1, Queensland, Australia

Authors: Neil Hauser, Jenny Milligan, Lynley Wallis, Alan Watchman, and Wayne Wilson

Gledswood Shelter 1, Queensland, Australia was utilized by prehistoric people for 40,000 years. As part of the investigation of ochre from Gledswood Shelter 1, several samples recovered from different levels of the shelter were subjected to NAA (neutron activation analysis), pXRF (portable X-ray fluorescence), and LIBS (laser induced breakdown spectroscopy) to identify which samples might have come from the same quarries. Actual sources for the ochre are not known. These analyses provided an opportunity to compare and contrast the information obtained from each of the three elemental analysis methods. In addition, information obtained from all three methods was leveraged to better understand the nature of the samples. Each method has its strengths and weaknesses but together provide more robust characterization of the samples than any one method alone.

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Evaluating NAA, pXRF, and LIBS from the Perspective of Ochre from Gledswood Shelter 1, Queensland, Australia. Neil Hauser, Jenny Milligan, Lynley Wallis, Alan Watchman, Wayne Wilson. Presented at The 80th Annual Meeting of the Society for American Archaeology, San Francisco, California. 2015 ( tDAR id: 397460)


Keywords

Geographic Keywords
Oceania


Spatial Coverage

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

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