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Successfully Dating Rock Art in Southern Africa Using Improved Sampling Methods and New Characterization and Pretreatment Protocols
Published online by Cambridge University Press: 09 September 2016
Abstract
Worldwide, dating rock art is difficult to achieve because of the frequent lack of datable material and the difficulty of removing contamination from samples. Our research aimed to select the paints that would be the most likely to be successfully radiocarbon dated and to estimate the quantity of paint needed depending on the nature of the paint and the weathering and alteration products associated with it. To achieve this aim, a two-step sampling strategy, coupled with a multi-instrument characterization (including SEM-EDS, Raman spectroscopy, and FTIR spectroscopy analysis) and a modified acid-base-acid (ABA) pretreatment, was created. In total, 41 samples were dated from 14 sites in three separate regions of southern Africa. These novel protocols ensure that the 14C chronology produced was robust and could also be subsequently applied to different regions with possible variations in paint preparation, geology, weathering conditions, and contaminants.
- Type
- Chemical Pretreatment Approaches
- Information
- Radiocarbon , Volume 59 , Special Issue 3: Proceedings of the 22nd International Radiocarbon Conference (Part 2 of 2) , June 2017 , pp. 659 - 677
- Copyright
- © 2016 by the Arizona Board of Regents on behalf of the University of Arizona
Footnotes
Current address: Laboratoire d’archéologie historique, Laval University, 3 rue de la Vieille-Université (Pavillon Camille-Roy), Quebec City, Canada, and Centre interuniversitaire d'études sur les lettres, les arts et les traditions, Laval University, Quebec City, Canada.
Selected Papers from the 2015 Radiocarbon Conference, Dakar, Senegal, 16–20 November 2015
References
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