Archaeometry at OSU’s Radiation Center |
Steps in establishing provenance for obsidian artifacts: |
1. Inventory, sample, and analyze known obsidian sources.
2. Establish a geochemical reference group for each source.
3. Analyze artifacts and assign to “best-fit” reference group.
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Because there are a limited number of obsidian sources in the landscape, many provenance projects begin by creating a regional data-base characterizing known obsidian flows. |