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A STUDY OF OBSIDIAN SOURCE USAGE IN THE CENTRAL ANDES OF ARGENTINA AND CHILE

Authors

  • M. GIESSO,

    Corresponding author
    1. Northeastern Illinois University, Department of Anthropology, 5500 N. St. Louis Avenue, Chicago, Illinois 60625-4699, USA
      email mgiesso@neiu.edu
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  • V. DURÁN,

    1. Department of Archaeology, Universidad Nacional de Cuyo, Centro Universitario—M5502JMA. Mendoza, Argentina
    2. Department of Archaeology, CONICET, Avda. Rivadavia 1917—CP C1033AAJ—Cdad. de Buenos Aires, Argentina
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  • G. NEME,

    1. Department of Archaeology, CONICET, Avda. Rivadavia 1917—CP C1033AAJ—Cdad. de Buenos Aires, Argentina
    2. Department of Anthropology, Museo de Historia Natural de San Rafael, Parque Mariano Moreno (5600) San Rafael, Mza. Argentina
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  • M. D. GLASCOCK,

    1. Archaeometry Laboratory, Research Reactor Center, University of Missouri-Columbia, 1513 Research Drive, Columbia, MO 65211, USA
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  • V. CORTEGOSO,

    1. Department of Archaeology, Universidad Nacional de Cuyo, Centro Universitario—M5502JMA. Mendoza, Argentina
    2. Department of Archaeology, CONICET, Avda. Rivadavia 1917—CP C1033AAJ—Cdad. de Buenos Aires, Argentina
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  • A. GIL,

    1. Department of Archaeology, CONICET, Avda. Rivadavia 1917—CP C1033AAJ—Cdad. de Buenos Aires, Argentina
    2. Department of Anthropology, Museo de Historia Natural de San Rafael, Parque Mariano Moreno (5600) San Rafael, Mza. Argentina
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  • L. SANHUEZA

    1. Department of Anthropology, Universidad de Chile, Av. Libertador Bernardo O'Higgins 1058, Santiago de Chile, Chile
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email mgiesso@neiu.edu

Abstract

We present the results of XRF analysis for 428 obsidian samples from archaeological sites in the Argentinian province of Mendoza and from central Chile. The archaeological samples come from different environments and have dates that range from 9000 to 300 bp. The results indicate that all known sources were utilized; however, the beginnings and the intensities of their exploitation were variable. On the contrary, strong differences appear, especially between the Cordilleran and the non-Cordillera sources. We suggest that this pattern is mainly related to differences in the accessibility, quality and abundance of the obsidian in the sources.

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