The Effect of Mars‐Relevant Soil Analogs on the Water Uptake of Magnesium Perchlorate and Implications for the Near‐Surface of Mars

Primm, K. M.; Gough, R. V.; Wong, J.; Rivera‐Valentin, E. G.; Martinez, G. M.; Hogancamp, J. V.; Archer, P. D.; Ming, D. W.; Tolbert, M. A.

doi:10.1029/2018je005540

i

The Effect of Mars‐Relevant Soil Analogs on the Water Uptake of Magnesium Perchlorate and Implications for the Near‐Surface of Mars

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2018
By Primm, K. M. ; Gough, R. V. ; Wong, J. ; ...

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Journal Title:

Journal of Geophysical Research: Planets
Personal Author:

Primm, K. M. ; Gough, R. V. ; Wong, J. ; Rivera‐Valentin, E. G. ; Martinez, G. M. ; Hogancamp, J. V. ; Archer, P. D. ; Ming, D. W. ; Tolbert, M. A.
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

The water uptake and release by perchlorate salts have been well studied since the ﬁrst in situ identi ﬁcation of such salts in the Martian soil by the Phoenix mission in 2008. However, there have been few studies on the effect of the insoluble regolith minerals on the interaction of perchlorate with water vapor. In this work, we investigate the impact of a Mars-relevant mineral, montmorillonite, and a Mars soil analog, Mojave Mars Simulant (MMS), on the deliquescence (transition from dry crystalline to aqueous via watervapor absorption), ice formation, and ef ﬂorescence (transition from aqueous to dry crystalline via loss of water) of pure magnesium perchlorate. We studied mixtures of magnesium perchlorate hexahydrate with either montmorillonite or MMS. Although montmorillonite and MMS are materials that may serve as nucleifor either ice nucleation or salt ef ﬂorescence, we ﬁnd that these soil analogs did not affect the phase
Keywords:

Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science
Source:

Journal of Geophysical Research: Planets, 123(8), 2076-2088
DOI:

https://doi.org/10.1029/2018je005540
ISSN:

2169-9097 ; 2169-9100
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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urn:sha256:60878c94b6291c4140fb2d90f60466ffea426592a9c76da9628f75432dcf9d43
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https://repository.library.noaa.gov/view/noaa/54404/noaa_54404_DS1.pdf
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[PDF - 2.47 MB ]

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