Found 2,008 items made of Refine Search .
Found 2,008 items made of Refine Search .
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Black obsidian biface that is broken on one side. There is an adhering matrix on one side. K. Peterson 2/3/99
Black obsidian biface that is broken on one sid. There is an adhering matrix on one side. K. Peterson 2/3/99
Black obsidian biface, with an adhering matrix on one side. D. Bradley 02/10/99
Black obsidian biface with both ends broken. M. Christopher 10/26/98.
Black obsidian, stemmed, round-shouldered point with an adhering martix on one side. 11/02/98 D. Bradley.
Black obsidian point with serrated edges and a broken tip. One side is side-notched, the opposite side is stemmed. There is an adhering matrix on one side. D. Bradley 02/17/99
Black obsidian, stemmed point with square shoulders. D. Bradley 02/10/99
Obsidian side-notched point, with expanding stem and parallel flaking. Both barbs are broken.
Black obsidian biface. There is an adhering matrix on one side. 11/30/98 D. Bradley
Black obsidian stemmed point. M. Christopher 10/23/1998. 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-] 126 [Collection Name] Bergen [Analysis] Specimen No: 53 [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.