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Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars.

McLennan, S M and Anderson, R B and Bell, J F and Bridges, J C and Calef, F and Campbell, J L and Clark, B C and Clegg, S and Conrad, P and Cousin, A and Des Marais, D J and Dromart, G and Dyar, M D and Edgar, L A and Ehlmann, B L and Fabre, C and Forni, O and Gasnault, O and Gellert, R and Gordon, S and Grant, J A and Grotzinger, J P and Gupta, S and Herkenhoff, K E and Hurowitz, J A and King, P L and Le Mouélic, S and Leshin, L A and Léveillé, R and Lewis, K W and Mangold, N and Maurice, S and Ming, D W and Morris, R V and Nachon, M and Newsom, H E and Ollila, A M and Perrett, G M and Rice, M S and Schmidt, M E and Schwenzer, S P and Stack, K and Stolper, E M and Sumner, D Y and Treiman, A H and Vanbommel, S and Vaniman, D T and Vasavada, A and Wiens, R C and Yingst, R A and the MSL Science Team and DLR Collaborator, Reitz G (2013) Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars. Science. American Association for the Advancement of Science (AAAS). doi: 10.1126/science.1244734. ISSN 0036-8075.

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Abstract

Sedimentary rocks examined by the Curiosity rover at Yellowknife Bay, Mars, were derived from sources that evolved from approximately average Martian crustal composition to one influenced by alkaline basalts. No evidence of chemical weathering is preserved indicating arid, possibly cold, paleoclimates and rapid erosion/deposition. Absence of predicted geochemical variations indicates that magnetite and phyllosilicates formed by diagenesis under low temperature, circum-neutral pH, rock-dominated aqueous conditions. High spatial resolution analyses of diagenetic features, including concretions, raised ridges and fractures, indicate that they are composed of iron- and halogen-rich components, magnesium-iron-chlorine-rich components, and hydrated calcium-sulfates, respectively. Composition of a cross-cutting dike-like feature is consistent with sedimentary intrusion. Geochemistry of these sedimentary rocks provides further evidence for diverse depositional and diagenetic sedimentary environments during the early history of Mars.

Item URL in elib:https://elib.dlr.de/87325/
Document Type:Article
Title:Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
McLennan, S MDepartment of Geosciences, State University of New York at Stony Brook, Stony Brook, NY, 11794-2100, USA.UNSPECIFIEDUNSPECIFIED
Anderson, R BUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bell, J FUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bridges, J CUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Calef, FUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Campbell, J LUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clark, B CUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Clegg, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Conrad, PUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cousin, AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Des Marais, D JUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dromart, GUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dyar, M DUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Edgar, L AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ehlmann, B LUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fabre, CUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Forni, OUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gasnault, OUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gellert, RUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gordon, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grant, J AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grotzinger, J PUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gupta, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herkenhoff, K EUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hurowitz, J AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
King, P LUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Le Mouélic, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leshin, L AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Léveillé, RUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lewis, K WUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mangold, NUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maurice, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ming, D WUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morris, R VUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nachon, MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Newsom, H EUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ollila, A MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perrett, G MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rice, M SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmidt, M EUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schwenzer, S PUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stack, KUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stolper, E MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sumner, D YUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Treiman, A HUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vanbommel, SUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vaniman, D TUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vasavada, AUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wiens, R CUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yingst, R A and the MSL Science TeamUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
DLR Collaborator, Reitz GRadiation Biology Department, Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.UNSPECIFIEDUNSPECIFIED
Date:2013
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1126/science.1244734
Publisher:American Association for the Advancement of Science (AAAS)
Series Name:Epub ahead of print (in Press)
ISSN:0036-8075
Status:Published
Keywords:Mars, MSL, Curiosity rover, Geochemistry of sedimentary rocks
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben MSL-Radiation (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:23 Jan 2014 09:53
Last Modified:08 Mar 2018 18:51

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