GSA Today
Volume 22, Number 8 (August 2012)

Cover image

About the cover:
Terrestrial deep-water marine polygons (front, color image) are potential morphological and genetic analogs to large-scale Martian polygonal features (grayscale). Front: The terrestrial deep-water polygons are imaged using 3-D seismic-reflection data acquired by the oil and gas industry in offshore Norway (Brygge Fm.). Background: THEMIS imagery shows the character of large-scale Martian polygons in Acidalia Planitia (Vastitas Borealis Formation). See related article, p. 4–9.

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