The role of impact gardening in disturbing the oxidation stratigraphy of the Martian regolith

Details The role of impact gardening in disturbing the oxidation stratigraphy of the Martian regolith The role of impact gardening in disturbing the oxidation stratigraphy of the Martian regolith

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1621z&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 621.

Mathematics

Probability

Mars Surface, Regolith, Oxidation, Stratigraphy, Hypervelocity Impact, Soil Moisture, Ground Water, Minerals, Meteorite Craters

Scientific paper

Using new estimates of H2O adsorption as the likely upper limit of peroxide adsorption, we estimate the upper limit of the depth of the oxidized layer of the Martian regolith to be about 18 m. We then estimate the frequency of regolith turnover due to impact as a function of regolith depth. It is likely that the upper 10 m of regolith has been cycled through the oxidizing zone between 1 and 30 times in 3.6 Ga. Below about 200 m, the probability is that the regolith materials have never been mixed into the oxidizing zone. The probability of successful recovery of organics increases with depth.

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