Found 2,008 items made of Refine Search .
Found 2,008 items made of Refine Search .
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Black obsidian biface fragment. D. Bradley 01/27/99
Black obsidian, side-notched point. There is matrix adhering to one side. D. Bradley 01/11/99
Black obsidian stemmed and side-notched point, with concave base. M. Christopher 01/08/99
Black obsidian, corner-notched point. There is an adhering matrix on one side. D. Bradley 01/29/99
Black obsidian biface. D. Bradley 01/20/99
Black obsidian, lanceolate-shaped, stemmed point. There is an adhering matrix on one side. D. Bradley 01/29/99
Black obsidian, side-notched point. The base is broken. D. Bradley 01/11/99
Black obsidian stemmed point with rounded tip. K. Peterson 11/30/98
Black, tip is gone.
Black obsidian side-notched point fragment with an expanding stem. M. Christopher 10/26/98. Dr. Dennis Jenkins, University of Oregon, sent this specimen to Northwest Research Obsidian Studies Laboratory, Corvalis, OR for analysis (on loan 11/30/98 - 4/9/99). A portion of this specimen was removed for obsidian hydration. The source of raw material was determined to be Cougar Mountain. Northwest Research Obsidian Lab placed a paper tag in the specimen bag with the following information: [Lab Contract #] BO-98-91 [Catalog #1989-57/35-M-] 172 [Collection Name] Bergen [Analysis] Specimen No: 59 [Source Location] Cougar Mountain See also the following report from Northwest Research Obsidian Studies Lab for more detailed analytical data: Skinner, Craig E. and Jennifer J. Thatcher 1998 "X-ray Fluoresence Analysis of Artifact Obsidian from the Bergen Site, Fort Rock Lake Basin, Lake County, Oregon." Northwest Research Obsidian Studies Laboratory, Report 98-91, Corvalis OR. Dr. Jenkins' interpretation of the data was reported at the Northwest Anthropological Conference, 4/8/99 - 4/10/99 in his paper entitled, "Obsidian Characterization and Hydration Results of the Fort Rock Basin Prehistory Project." D. Bradley 04/12/99.