Martian Seeps and their Relation to Youthful Geothermal Activity

Details Martian Seeps and their Relation to Youthful Geothermal Activity Martian Seeps and their Relation to Youthful Geothermal Activity

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ssrv...96..405h&link_type=abstract

Space Science Reviews, v. 96, Issue 1/4, p. 405-410 (2001).

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Scientific paper

Gullies found on Martian hillsides by Malin and Edgett (2000) appear in many cases to be formed by water seeps produced by underground aquifers. It is proposed that these aquifers result from geologically recent melting of permafrost ice by sporadic, localized geothermal activity. This is consistent with evidence from crater counts and Martian meteorites that much higher-temperature geothermal activity has produced volcanic activity and lava flows within the last 200 Myr, and perhaps within the last 10 Myr. This hypothesis explains an aspect initially described as surprising, namely concentration of the gullies at high latitudes and on shadowed slopes. Similar features are found on Icelandic basaltic hillsides, which may be ideal analogs for further studies that may clarify the Martian phenomena.

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