GSA Today
Volume 29

About the cover:
Graduate student Peter Lindquist (University of Vermont) examines exposures of Cretaceous gneiss in eastern Fiordland where crustal-scale reverse faults placed a large slice of lower crust up and to the east (right) over middle and upper crustal rocks. The faulting occurred at 8–7 Ma when a subducting slab of ocean crust collided with preexisting material at ~100 km depth beneath Fiordland. Photo by Keith Klepeis. See related article, p. 4–10.

doi: 10.1130/GSATG399A.1

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