Evidence, age, and thickness of a frozen Paleolake in Utopia Planitia, Mars

Details Evidence, age, and thickness of a frozen Paleolake in Utopia Planitia, Mars Evidence, age, and thickness of a frozen Paleolake in Utopia Planitia, Mars

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..109..393c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 109, no. 2, p. 393-406

Mathematics

Logic

52

Chronology, Geomorphology, Lakes, Landforms, Mars Surface, Thickness, Mars Photographs, Paleoclimatology, Viking Orbiter Spacecraft

Scientific paper

Recent mapping studies west of Elysium Mons, Mars, have pinpointed subice features that suggest the existence of a frozen paleolake in Utopia Planitia as recently as 1.8 billion years ago. The subice features are interpreted to be hyaloclastic ridges and hills, table moutains, associated joekulhalaup deposits, and fluvial channels. Photoclinometric studies of these features and of a basal scarp around the northwest flank of Elysium Mons interpreted to have been an ice-sheet boundary indicate that the maximum thickness of ice within the basin may have been about 180 m. This thickness of ice during a relatively late stage of Martian geologic history would have important implications concerning the atmospheric, the climatic, and possibly the exobiologic history of the planet.

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