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Application of X-ray fluorescence imaging to ceramics from the American Southwest

Cornell Affiliated Author(s)

Author

E.C. Geil
S.A. LeBlanc
D.S. Dale
R.E. Thorne

Abstract

We have used synchrotron-based X-ray fluorescence imaging (XRFI) to examine sherds of painted ceramics from prehistoric cultures of the American Southwest. These sherds are very well suited to XRFI analysis. Paints can generally be detected and distinguished by the fluorescence intensities of their constituent elements. Spatial maps of element distributions yield the spatial distribution of pigments. Pigments can be distinguished that are (or have become) visually similar; layers that have been obscured by overpainting can be examined; and pigment residues can be distinguished from surface contaminants deposited after painting and firing. As a result, XRFI allows the painted motifs to be clarified and hidden features to be revealed. Furthermore, the very rapid scanning and high sensitivity elemental detection possible with synchrotron-based XRFI facilitate measurements on large collections of sherds, allowing an integrative rather than anecdotal analysis. © 2013 Elsevier Ltd.

Date Published

Journal

Journal of Archaeological Science

Volume

40

Issue

12

Number of Pages

4780-4784,

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84886583148&doi=10.1016%2fj.jas.2013.05.014&partnerID=40&md5=fe2ae816271ef56a1c6b4ed96b4fd0f7

DOI

10.1016/j.jas.2013.05.014

Group (Lab)

Robert Thorne Group

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