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ICP-MS Isotopic Signatures of Lead Ceramic Glazes, Rio Grande Valley, New Mexico, 1315–1700

Published online by Cambridge University Press:  26 February 2011

Nicholas E. Pingitore Jr ,
David Hill ,
Joshua Villalobos ,
Jeff Leach  and
John A. Peterson
Nicholas E. Pingitore Jr
Affiliation:
Department of Geological Sciences, The University of Texas at El Paso, El Paso, TX 79968–0555
David Hill
Affiliation:
Box 35063, Albuquerque, NM 87176–5063
Joshua Villalobos
Affiliation:
Department of Geological Sciences, The University of Texas at El Paso, El Paso, TX 79968–0555
Jeff Leach
Affiliation:
Department of Sociology & Anthropology, The University of Texas at El Paso, El Paso, Texas 79968
John A. Peterson
Affiliation:
Centro de Investigaciones Arqueológicas, 140 N. Stevens, Suite 202, El Paso, Texas 79905
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Abstract

ICP-MS isotopie analysis of lead ceramic glazes suggests at least two sources were exploited by Ancestral Pueblo potters to obtain the lead raw material, presumably galena (PbS). Five Rio Grande lead glazeware sherds from the Sandia area and two found at Socorro share a common isotopie fingerprint. The temper of one of the Socorro sherds confirms an origin in the Sandia area; petrography of the temper of the second sherd does not tie to any known Socorro source rock. Two other glazeware sherds from Socorro have a distinctly different lead isotopie signature. A fifth Socorro glaze may be a mixture of the Sandia and Socorro lead source materials. The differences in lead isotopie signature thus accord well with mineralogical differences in the ceramic pastes. Lead isotopie signatures generated by ICP-MS analysis are a powerful new tool for grouping glazeware sherds, classifying individual samples, defining lead sources, and delineating trade routes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 462: Symposium DD – Materials Issues in Art and Archaeology V , 1996 , 217
Copyright
Copyright © Materials Research Society 1997

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References

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