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Obsidian
Obsidian was long valued by ancient peoples as a raw material for producing stone tools, and archaeologists have increasingly come to view obsidian studies as a crucial aid in understanding the past. Steven Shackley now shows how the geochemical and contextual analyses of archaeological obsidian can be applied to the interpretation of social and economic organization in the ancient Southwest. This book, the capstone of decades of investigation, integrates a wealth of obsidian research in one volume. It covers advances in analytical chemistry and field petrology that have enhanced our understanding of obsidian source heterogeneity, presents the most recent data on and interpretations of archa...
Food Identity Preservation and Traceability
A Practical Roadmap to IPT IntegrationFrom baby formula and peanut butter, to E. coli-tainted peppers and salmonella-tainted pistachios, no food product or means of its production is immune to risks. And while these risks may never be fully eliminated, identity preservation and traceability (IPT) systems make it easier to determine the source and e
