Publication Date:
2018-06-11
Description:
This study examines the relationships between three temporally distinct indicators of water on Mars: ancient craters with fluidized ejecta, relatively more recent gullies inside those craters, and current abundance of near surface hydrogen around those craters. We find an association between gully occurrence and large-scale geologic features; analysis indicates unique depth/diameter ratios for gullied craters in Sirenum Terra. Numerical comparisons of fluidized and non-fluidized, gullied and non-gullied craters suggest that the Argyre region could have had a near-surface water table that receded before recent times, while Sirenum Terra may have had an ancient water table that persists to this day.
Keywords:
Lunar and Planetary Science and Exploration
Type:
Lunar and Planetary Science XXXV: Mars: Hydrology, Drainage, and Valley Systems; LPI-Contrib-1197
Format:
text
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