Found 2,076 items made of . Refine Search
Found 2,076 items made of . Refine Search
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Black obsidian, stemmed point. One side is round-shouldered; the other is square-shouldered. 12/01/98 D. Bradley
Black obsidian, rectangular biface with minimal flaking on ventral side. K. Peterson 1/20/98
Triangular; obsidian point, point broken off.
Black obsidian biface, with retouched edges. One end is broken. D. Bradley 01/11/99
Black obsidian parallel stemmed point with rounded shoulders. The base has a chip removed latitudinally. K. Peterson 10/16/98
Black obsidian lanceolate point with concave base. K. Peterson 2/3/99
Black obsidian biface with retouched edges. M. Christopher 10/23/1998.
Black obsidian biface. There is matrix adhering to one side. D. Bradley 01/11/99
Black obsidian lanceolate-shaped point that is stemmed with parallel flaking and retouched edges. M. Christopher 10/16/1998. 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 Silver Lake/Sycan Marsh. 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-] 25 [Collection Name] Bergen [Analysis] Specimen No: 2 [Source Location] Silver Lake/Sycan Marsh 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.
Black obsidian side-notched point with concave base. Tip and one side of blade broken. Blade break is longitudinal and extends from tip break to shoulder base. K. Peterson 11/30/98