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Macusani Obsidian From Southern Peru: A Characterization Of Its Elemental Composition With A Demonstration Of Its Ancient Use, Nathan M. Craig, Robert Speakman, R. Popelka-Filcoff, Mark Aldenderfer, Luis Flores Blanco, Margaret Brown Vega, Michael Glasscock, Charles Stanish
Macusani Obsidian From Southern Peru: A Characterization Of Its Elemental Composition With A Demonstration Of Its Ancient Use, Nathan M. Craig, Robert Speakman, R. Popelka-Filcoff, Mark Aldenderfer, Luis Flores Blanco, Margaret Brown Vega, Michael Glasscock, Charles Stanish
Nathan M Craig
Transparent obsidian artifacts have been reported for the northern Lake Titicaca Basin. Based on instrumental neutron activation analysis (INAA) of these artifacts a distinct chemical group was identified. Yet, the location of the source of transparent obsidian in the southern Andes remained unreported in the archaeological literature. This paper reports on the chemical composition and geographic location of a source of transparent obsidian from the Macusani region of Peru. Through the use of INAA and portable X-ray fluorescence (PXRF) we demonstrate that Macusani obsidian or macusanite comprises (at least) two chemical groups. One of these groups was used for making …