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In 1998, Northwest Research contracted with Northwest Archaeological Associates (Seattle, Washington), to carry out trace element and hydration analyses for 618 obsidian artifacts recovered from 35 central and eastern Oregon archaeological sites (Skinner and Thatcher 1998). These sites paralleled Highway 20 and provided a unique geographic view of prehistoric obsidian use across a large region of Oregon in which little was then known of the topic. In the period of time since the completion of the project, we have maintained a very active field work program in central Oregon and have subsequently identified the geologic sources of numerous artifacts that were initially assigned to unknown sources. With the assistance of Dr. Nancy Sharp of Northwest Archaeological Associates, we have obtained permission to publish a revised and updated version of the project report as an Adobe Acrobat document that may be downloaded from this site. Revision of the document was completed in October of 2003 and you can now download it HERE.
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Skinner, Craig E. and Jennifer J. Thatcher. 1998. X-Ray Fluorescence and Obsidian Hydration Rim Measurement of Artifact Obsidian from 35 Archaeological Sites Associated with the Proposed FTV Western Fiber Build Project, Deschutes, Lake, Harney, and Malheur Counties, Oregon. Report 98-56 prepared for Northwest Archaeological Associates, Seattle, Washington, by Northwest Research Obsidian Studies Laboratory, Corvallis, Oregon.
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