Also of Green River Formation chert ... it is clear that its owner either traveled far to procure specific types of stone or traded with others who did. In either case, the stone in the Fenn ...
Fort McCoy has archaeological sites within its boundaries that represent more than 10,000 years of history.Most of the artifacts from those sites ...
A new study in Chile shows how small differences in rock type can drive large differences in erosion, vegetation, and river networks, illuminating the role of mineralogy in shaping landscapes.
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