Trench Across the Fault (IMAGE)
Caption
Dr. Olaf Zielke and Professor J. Ramon Arrowsmith of Arizona State University stand in the bottom of a trench across the San Andreas fault zone in the Carrizo Plain and discuss the exposures of faulted sediments and channel gravel visible in the walls.
Credit
Bidart Fan San Andreas fault research team, University of California Irvine and Arizona State University
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