GSA Today
Volume 22, Number 6 (June 2012)

Cover image

About the cover:
Holocene rock platform and comparable Pleistocene terrace in dipping shales and sandstones of the Eocene Coaledo Formation at Sunset Bay, Oregon, USA. This terrace formed at a modern water table by retreat of the saprock cliff, despite continuing uplift due to subduction of the Juan de Fuca Plate. Photo by G.J. Retallack. See related article, p. 4–10.

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