Investigating the Orocopia Schist (IMAGE)
Caption
UW Assistant Professor Jay Chapman teaches a winter-term field course in southern Arizona, during which students were able to investigate the Orocopia Schist in person. Chapman is the author of a new paper that suggests the rock originated as sand and mud subducted off the coast of California around 75 million years ago, then returned to the Earth’s crust by rising up through the mantle as enormous diapirs.
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University of Wyoming
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