title: Planetary science: bedrock formation at Meridiani Planum.
abstract: The Mars Exploration Rover Opportunity discovered sulphate-rich sedimentary rocks at Meridiani Planum on Mars, which are interpreted by McCollom and Hynek as altered volcanic rocks. However, their conclusions are derived from an incorrect representation of our depositional model, which is upheld by more recent Rover data. We contend that all the available data still support an aeolian and aqueous sedimentary origin for Meridiani bedrock.
authors.affiliation: Department of Astronomy, Cornell University, Ithaca, New York 14853, USA. squyres@astro.cornell.edu
authors.forename: S W
authors.initials: SW
authors.lastname: Squyres
authors.forename: O
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authors.lastname: Aharonson
authors.forename: R E
authors.initials: RE
authors.lastname: Arvidson
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authors.initials: JF
authors.lastname: Bell
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authors.lastname: Golombek
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authors.lastname: Grant
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authors.lastname: Grotzinger
authors.forename: K E
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authors.lastname: Herkenhoff
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authors.lastname: McLennan
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authors.lastname: McSween
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authors.lastname: Moore
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authors.initials: JW
authors.lastname: Rice
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authors.lastname: Tosca