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Increasing occurrence of sandstone cemented with calcium sulfate on Mount Sharp, Gale Crater, Mars

Newsom, H. E.; Jackson, R.; Wiens, R. C.; Frydenvang, J.; Gasada, P.; Lanza, N.; Ollila, A.; Clegg, S.; Gasnault, O.; Maurice, S.; Meslin, P.-Y.; Cousin, A.; Rapin, W.; Lasue, J.; Forni, O.; L'Harridon, J.; Banham, S.; Gupta, S.; Cohen, B.; Schieber, J.; Schwenzer, S. P.; Grotzinger, J.; Blaney, D.; Schroeder, J.; Calef, F.; Francis, R.; Ehlman, B.; Thomas, N.; Stein, N.; Watkinss, J.; Rubin, D.; Bridges, N.; Johnson, J.; Payre, V.; Mangold, N.; LeDeit, L.; Edgett, K.; Fey, D.; Gellert, R.; Thompson, L.; Schmidt, M.; Perrett, G.; Kah, L.; Kronyak, R.; Anderson, R.; Herkenhoff, K. and Bridges, J. (2017). Increasing occurrence of sandstone cemented with calcium sulfate on Mount Sharp, Gale Crater, Mars. In: 48th Lunar and Planetary Science Conference, 20-24 March 2017, Houston.

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Abstract

The Mars Science Laboratory Rover Curiosity has observed calcium sulfate veins in all of the bedrock examined to date in Gale Crater, with the exception of the Bradbury Rise area. The veins are also ubiquitous in the Murray Formation, which is interpreted as fine-grain mudstone. But recently when the rover reached the Murray Buttes on the lower slopes of Mount Sharp, the presence of light-toned rocks with moderate CaO have been observed, suggesting the presence of a cementd porous sandstone. The substantial increase in ChemCam analyses consistent with cemented sandstone (instead of mudstone), along with changes in other sedimentary structures may signal a change in the depositional environment and/or provenance of the lake deposits.

Item Type: Conference or Workshop Item
Copyright Holders: 2017 The Authors
Project Funding Details:
Funded Project NameProject IDFunding Body
Support for Mars Science Laboratory OperationsST/P002110/1UKSA UK Space Agency
Keywords: Mars; Curiosity rover; sandstone; cement
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
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Item ID: 48657
Depositing User: Susanne Schwenzer
Date Deposited: 27 Feb 2017 10:09
Last Modified: 18 Sep 2017 21:39
URI: http://oro.open.ac.uk/id/eprint/48657
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