Archaeologists used __________________ analysis to identify sources of obsidian tools found in the Great Basin.

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Trace element analysis is commonly used to identify the source of obsidian, a volcanic glass that was widely traded in prehistoric times. Radiocarbon analysis is used to date organic materials such as bones, charcoal, and plant remains. Zooarchaeological analysis is used to identify and study animal remains. Botanical analysis is used to identify and study plant remains.

Archaeologists Used __________________ Analysis to Identify Sources of Obsidian Tools