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Evaluating the effect of sulfur on alteration assemblages in impact cratered terrains on Mars

Schwenzer, S. P. and Kring, D. A. (2010). Evaluating the effect of sulfur on alteration assemblages in impact cratered terrains on Mars. In: 41st Lunar and Planetary Science Conference, 01-05 Mar 2010, Houston, TX, USA.

URL: http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1614...
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Abstract

A clay, namely nontronite, was recently discovered in Noachian terrains. That discovery was rapidly followed by detection of chlorite, serpentine, kaolinite, zeolites, and carbonates. All of the hydrous silicates are restricted to the Noachian terrains. Therefore, the alteration phases occur in the old, heavily cratered environment on Early Mars, which was most likely shaped in a very short period of time during the Late Heavy Bombardment. Thus, impact cratering was a very important process contemporaneous to the formation of hydrous silicates. This is especially important in the light of studies that have shown that impact craters are capable of hosting hydrothermal systems and producing alteration phases. On Mars, geologic links to impact-generated formation of alteration minerals in central peaks and modification zones of Martian craters have been found. Modeling the formation conditions of those phases demonstrates where and when these phases form in the post-impact hydrothermal environments on Mars.

Item Type: Conference or Workshop Item
Copyright Holders: 2010 The Authors
Keywords: impact cratering; hydrothermal systems; alteration minerals; sulphur
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Item ID: 24286
Depositing User: Susanne Schwenzer
Date Deposited: 16 Nov 2010 12:55
Last Modified: 07 Dec 2018 09:42
URI: http://oro.open.ac.uk/id/eprint/24286
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