Found 2,048 items made of Refine Search .
Found 2,048 items made of Refine Search .
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Black obsidian, side-notched point with concave base. D. Bradley 01/29/99
Black obsidian side-notched point with a flat contracting base; the entire point is curved to the right of the dorsal side. 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 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-] 75 [Collection Name] Bergen [Analysis] Specimen No: 35 [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.
Black obsidian chipped stone tool. Possibly a stem for point with a contracting stem and square shoulders. There is an adhering matrix on one side. 12/01/98 D. Bradley
Black obsidian, split-stemmed point with broken tip. There is an adhering matrix on both sides. 12/01/98 D. Bradley
Black obsidian corner-notched point with tip and both barbs broken. K. Peterson 11/30/98
Black obsidian, triangular-shaped biface. D. Bradley 01/28/99
Black obsidian, coner-notched, stemmed point with a contracting stem. M. Christopher 10/30/1998
Black obsidian stemmed point, with retouched edges. One shoulder is square, the opposite shoulder is round. D. Bradley 01/11/99
Black obsidian point fragment. D. Bradley 01/12/99
Black obsidian leaf-shaped biface with a flat base. M. Christopher 01/08/99