Formation of amphitheater-headed valleys by waterfall erosion after large-scale slumping on Hawai'i

  title={Formation of amphitheater-headed valleys by waterfall erosion after large-scale slumping on Hawai'i},
  author={Michael P. Lamb and Alan D. Howard and William E. Dietrich and J. Taylor Perron},
  journal={Geological Society of America Bulletin},
Amphitheater-headed valleys are common on the surfaces of Earth and Mars. The abrupt terminations of these valleys at their headwalls have been used extensively to argue for valley erosion from springs (i.e., seepage erosion or groundwater sapping) rather than surface runoff. This interpretation has significant implications for Martian hydrology and the associated prospects for life. A connection between channel form and the erosion processes induced by groundwater, however, has not been… Expand
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