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Evaluating Arizona’s geologic setting, mineral resources, and geologic hazards.
Celebrating the life and career of Paul J. Umhoefer (1955-2021)
5 December 2021
We are heartbroken by the news that Paul John Umhoefer (Ph.D.) passed away on November 24, 2021, in Flagstaff, AZ, at the age of 66.
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