The spatial distribution of volatiles in the Martian hydrolithosphere

Details The spatial distribution of volatiles in the Martian hydrolithosphere The spatial distribution of volatiles in the Martian hydrolithosphere

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989em%26p...45..265c&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 45, June 1989, p. 265-290. Research supported by the Institut National des Scien

Physics

55

Ejecta, Lithosphere, Mars Surface, Spatial Distribution, Volatility, Histograms, Latitude, Planetary Craters, Planetary Mapping

Scientific paper

The spatial distribution of volatiles on Mars is quantified by measuring, classifying, and mapping 2600 fluidized ejecta craters using 1:2 M scale USGS photomosaics. It is found that flower ejecta deposits (Type 1) and low mobility ejecta are frequently observed in the equatorial region and on ridged plains. Rampart craters (Type 2) with high mobility ejecta are observed at mid latitudes, exhibiting a spatial relationship with polygonal patterns and pseudocrater areas. It is shown that the cratered uplands and ridged plains contain less volatile material near the surface than the underlying materials. The results also suggest the presence of a water-rich alluvial deposit close to the surface near the mouths of the Chryse and Elysium channels.

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