Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars
We model the fluids involved in the alteration processes recorded in the Sheepbed Member mudstones of Yellowknife Bay (YKB), Gale crater, Mars, as revealed by the Mars Science Laboratory Curiosity rover investigations. We compare the Gale crater waters with fluids modeled for shergottites, nakhlites...
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ftleicesterunfig:oai:figshare.com:article/10181537 2023-05-15T18:45:41+02:00 Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars S. P. Schwenzer John C. Bridges R. C. Wiens P. G. Conrad S. P. Kelley R. Leveille N. Mangold J. Martín-Torres A. Mcadam H. Newsom M. P. Zorzano W. Rapin J. Spray A. H. Treiman F. Westall A. G. Fairén P. Y. Meslin 2016-07-20T00:00:00Z https://figshare.com/articles/journal_contribution/Fluids_during_diagenesis_and_sulfate_vein_formation_in_sediments_at_Gale_crater_Mars/10181537 unknown 2381/38199 https://figshare.com/articles/journal_contribution/Fluids_during_diagenesis_and_sulfate_vein_formation_in_sediments_at_Gale_crater_Mars/10181537 CC BY 4.0 CC-BY Uncategorized IR content Text Journal contribution 2016 ftleicesterunfig 2021-11-11T19:39:18Z We model the fluids involved in the alteration processes recorded in the Sheepbed Member mudstones of Yellowknife Bay (YKB), Gale crater, Mars, as revealed by the Mars Science Laboratory Curiosity rover investigations. We compare the Gale crater waters with fluids modeled for shergottites, nakhlites, and the ancient meteorite ALH 84001, as well as rocks analyzed by the Mars Exploration rovers, and with terrestrial ground and surface waters. The aqueous solution present during sediment alteration associated with phyllosilicate formation at Gale was high in Na, K, and Si; had low Mg, Fe, and Al concentrations-relative to terrestrial groundwaters such as the Deccan Traps and other modeled Mars fluids; and had near neutral to alkaline pH. Ca and S species were present in the 10-3 to 10-2 concentration range. A fluid local to Gale crater strata produced the alteration products observed by Curiosity and subsequent evaporation of this groundwater-type fluid formed impure sulfate- and silica-rich deposits-veins or horizons. In a second, separate stage of alteration, partial dissolution of this sulfate-rich layer in Yellowknife Bay, or beyond, led to the pure sulfate veins observed in YKB. This scenario is analogous to similar processes identified at a terrestrial site in Triassic sediments with gypsum veins of the Mercia Mudstone Group in Watchet Bay, UK. Other Non-Article Part of Journal/Newspaper Yellowknife University of Leicester: Figshare Yellowknife Yellowknife Bay ENVELOPE(-114.336,-114.336,62.367,62.367) |
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University of Leicester: Figshare |
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ftleicesterunfig |
language |
unknown |
topic |
Uncategorized IR content |
spellingShingle |
Uncategorized IR content S. P. Schwenzer John C. Bridges R. C. Wiens P. G. Conrad S. P. Kelley R. Leveille N. Mangold J. Martín-Torres A. Mcadam H. Newsom M. P. Zorzano W. Rapin J. Spray A. H. Treiman F. Westall A. G. Fairén P. Y. Meslin Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
topic_facet |
Uncategorized IR content |
description |
We model the fluids involved in the alteration processes recorded in the Sheepbed Member mudstones of Yellowknife Bay (YKB), Gale crater, Mars, as revealed by the Mars Science Laboratory Curiosity rover investigations. We compare the Gale crater waters with fluids modeled for shergottites, nakhlites, and the ancient meteorite ALH 84001, as well as rocks analyzed by the Mars Exploration rovers, and with terrestrial ground and surface waters. The aqueous solution present during sediment alteration associated with phyllosilicate formation at Gale was high in Na, K, and Si; had low Mg, Fe, and Al concentrations-relative to terrestrial groundwaters such as the Deccan Traps and other modeled Mars fluids; and had near neutral to alkaline pH. Ca and S species were present in the 10-3 to 10-2 concentration range. A fluid local to Gale crater strata produced the alteration products observed by Curiosity and subsequent evaporation of this groundwater-type fluid formed impure sulfate- and silica-rich deposits-veins or horizons. In a second, separate stage of alteration, partial dissolution of this sulfate-rich layer in Yellowknife Bay, or beyond, led to the pure sulfate veins observed in YKB. This scenario is analogous to similar processes identified at a terrestrial site in Triassic sediments with gypsum veins of the Mercia Mudstone Group in Watchet Bay, UK. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
S. P. Schwenzer John C. Bridges R. C. Wiens P. G. Conrad S. P. Kelley R. Leveille N. Mangold J. Martín-Torres A. Mcadam H. Newsom M. P. Zorzano W. Rapin J. Spray A. H. Treiman F. Westall A. G. Fairén P. Y. Meslin |
author_facet |
S. P. Schwenzer John C. Bridges R. C. Wiens P. G. Conrad S. P. Kelley R. Leveille N. Mangold J. Martín-Torres A. Mcadam H. Newsom M. P. Zorzano W. Rapin J. Spray A. H. Treiman F. Westall A. G. Fairén P. Y. Meslin |
author_sort |
S. P. Schwenzer |
title |
Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
title_short |
Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
title_full |
Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
title_fullStr |
Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
title_full_unstemmed |
Fluids during diagenesis and sulfate vein formation in sediments at Gale crater, Mars |
title_sort |
fluids during diagenesis and sulfate vein formation in sediments at gale crater, mars |
publishDate |
2016 |
url |
https://figshare.com/articles/journal_contribution/Fluids_during_diagenesis_and_sulfate_vein_formation_in_sediments_at_Gale_crater_Mars/10181537 |
long_lat |
ENVELOPE(-114.336,-114.336,62.367,62.367) |
geographic |
Yellowknife Yellowknife Bay |
geographic_facet |
Yellowknife Yellowknife Bay |
genre |
Yellowknife |
genre_facet |
Yellowknife |
op_relation |
2381/38199 https://figshare.com/articles/journal_contribution/Fluids_during_diagenesis_and_sulfate_vein_formation_in_sediments_at_Gale_crater_Mars/10181537 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
_version_ |
1766236804147576832 |