Abstract:Despite their ubiquity, surface occurrences of obsidian artifacts at archaeological sites throughout western North America have traditionally been viewed as unworthy of serious attention because of the difficulty in dating them. In the past 40 years, the time sensitivity of certain Great Basin projectile point types has been established, which brings the importance of surface collections more center stage. With the coming of age and refinement of geochemical methods, obsidian artifacts from these surface sites… Show more
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