Ice in the northern lowlands and southern highlands of Mars and its enrichment beneath the Elysium lavas

Details Ice in the northern lowlands and southern highlands of Mars and its enrichment beneath the Elysium lavas Ice in the northern lowlands and southern highlands of Mars and its enrichment beneath the Elysium lavas

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....9811079c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E6, p. 11,079-11,097.

Mathematics

Logic

8

Highlands, Land Ice, Lava, Mars Craters, Mars Surface, Hypervelocity Impact, Terrain Analysis, Water, Mars, Lowlands, Highlands, Ground Ice, Enrichment, Elysium Region, Lava, Concentration, Depth, Distribution, Impact Craters, Subsurface, Volatiles, Analysis, Latitude, Deposits, Emplacement, Chaotic Terrain, Morphology, Ejecta, Terrain, Data, Debris, Flow, Altitude, Water, Permafrost, Age

Scientific paper

A detailed analysis of the impact crater characteristics in the Elysium region and in portions of Amenthes, Amazonis, Mare Tyrrhenum, Aeolis, Memnonia, Cebrenia, and Diacria regions is carried out using satellite imagery, to investigate the lateral and vertical ice distribution in the Martian northern lowlands and southern highlands. It found that the ground ice is widespread but its distribution is nonuniform in terms of depth and concentration. In particular, the deeper regolith appears to be considerably more ice-rich than the near-surface layers. The depth of the transition from the ice-poor to the ice-rich material depends on the latitude, while the relative concentration of the ice varies according to the geological situation. The results suggest that a variety of emplacement and transfer mechanisms have operated in the past, including the redistribution of ice from the highlands to the lowlands, and the juvenile enrichmment of the ground ice in the Elysium Volcanic province.

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