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ext-c98267427cfbdbbc104d3702615ecb21 |
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Date |
2017-09-16 |
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Is Part Of |
repository |
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Is Part Of |
p19448007 |
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abstract |
We report the first in situ detection of boron on Mars. Boron has been detected in
Gale crater at levels <0.05 wt % B by the NASA <i>Curiosity</i> rover ChemCam instrument
in calcium-sulfate-filled fractures, which formed in a late-stage groundwater circulating
mainly in phyllosilicate-rich bedrock interpreted as lacustrine in origin. We consider
two main groundwater-driven hypotheses to explain the presence of boron in the veins:
leaching of borates out of bedrock or the redistribution of borate by dissolution
of borate-bearing evaporite deposits. Our results suggest that an evaporation mechanism
is most likely, implying that Gale groundwaters were mildly alkaline. On Earth, boron
may be a necessary component for the origin of life; on Mars, its presence suggests
that subsurface groundwater conditions could have supported prebiotic chemical reactions
if organics were also present and provides additional support for the past habitability
of Gale crater. |
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authorList |
authors |
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issue |
17 |
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status |
peerReviewed |
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uri |
http://data.open.ac.uk/oro/document/635910 |
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uri |
http://data.open.ac.uk/oro/document/635911 |
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uri |
http://data.open.ac.uk/oro/document/635912 |
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uri |
http://data.open.ac.uk/oro/document/635913 |
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uri |
http://data.open.ac.uk/oro/document/635914 |
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uri |
http://data.open.ac.uk/oro/document/635915 |
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uri |
http://data.open.ac.uk/oro/document/661652 |
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volume |
44 |
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type |
AcademicArticle |
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type |
Article |
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label |
Gasada, Patrick J.; Haldemann, Ethan B.; Wiens, Roger C.; Rapin, William; Bristow,
Thomas F.; Bridges, John C.; Schwenzer, Susanne P. ; Clark, Benton; Herkenhoff, Kenneth;
Frydenvang, Jens; Lanza, Nina L.; Maurice, Sylvestre; Clegg, Samuel; Delapp, Dorothea
M.; Sanford, Veronica L.; Bodine, Madeleine R. and McInroy, Rhonda (2017). In situ
detection of boron by ChemCam on Mars. Geophysical Research Letters, 44(17) pp. 8739–8748. |
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label |
Gasada, Patrick J.; Haldemann, Ethan B.; Wiens, Roger C.; Rapin, William; Bristow,
Thomas F.; Bridges, John C.; Schwenzer, Susanne P. ; Clark, Benton; Herkenhoff, Kenneth;
Frydenvang, Jens; Lanza, Nina L.; Maurice, Sylvestre; Clegg, Samuel; Delapp, Dorothea
M.; Sanford, Veronica L.; Bodine, Madeleine R. and McInroy, Rhonda (2017). In situ
detection of boron by ChemCam on Mars. Geophysical Research Letters, 44(17) pp. 8739–8748.
|
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Title |
In situ detection of boron by ChemCam on Mars |
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in dataset |
oro |