Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies
The history of water on Mars is tied to the formation of carbonates through atmospheric CO2 and its control of the climate history of the planet. Carbonate mineral formation under modern martian atmospheric conditions could be a critical factor in controlling the martian climate in a means similar t...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140006563 2023-05-15T13:47:44+02:00 Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies Niles, Paul B. Socki, Richard A. Fu, Qi Sun, Tao Romanek, Christopher S. Gibson, Everett K. Jr. Unclassified, Unlimited, Publicly available March 17, 2014 application/pdf http://hdl.handle.net/2060/20140006563 unknown Document ID: 20140006563 http://hdl.handle.net/2060/20140006563 Copyright, Distribution as joint owner in the copyright CASI Lunar and Planetary Science and Exploration JSC-CN-30322 Lunar and Planetary Science Conference; Mar 17, 2014 - Mar 21, 2014; The Woodlands, TX; United States 2014 ftnasantrs 2019-08-31T23:09:55Z The history of water on Mars is tied to the formation of carbonates through atmospheric CO2 and its control of the climate history of the planet. Carbonate mineral formation under modern martian atmospheric conditions could be a critical factor in controlling the martian climate in a means similar to the rock weathering cycle on Earth. The combination of evidence for liquid water on the martian surface and cold surface conditions suggest fluid freezing could be very common on the surface of Mars. Cryogenic calcite forms easily from freezing solutions when carbon dioxide degasses quickly from Ca-bicarbonate-rich water, a process that has been observed in some terrestrial settings such as arctic permafrost cave deposits, lake beds of the Dry Valleys of Antarctica, and in aufeis (river icings) from rivers of N.E. Alaska. A series of laboratory experiments were conducted that simulated cryogenic carbonate formation on Mars in order to understand their isotopic systematics. The results indicate that carbonates grown under martian conditions show variable enrichments from starting bicarbonate fluids in both carbon and oxygen isotopes beyond equilibrium values. Other/Unknown Material Antarc* Antarctica Arctic permafrost Alaska NASA Technical Reports Server (NTRS) Arctic |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
topic |
Lunar and Planetary Science and Exploration |
spellingShingle |
Lunar and Planetary Science and Exploration Niles, Paul B. Socki, Richard A. Fu, Qi Sun, Tao Romanek, Christopher S. Gibson, Everett K. Jr. Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
topic_facet |
Lunar and Planetary Science and Exploration |
description |
The history of water on Mars is tied to the formation of carbonates through atmospheric CO2 and its control of the climate history of the planet. Carbonate mineral formation under modern martian atmospheric conditions could be a critical factor in controlling the martian climate in a means similar to the rock weathering cycle on Earth. The combination of evidence for liquid water on the martian surface and cold surface conditions suggest fluid freezing could be very common on the surface of Mars. Cryogenic calcite forms easily from freezing solutions when carbon dioxide degasses quickly from Ca-bicarbonate-rich water, a process that has been observed in some terrestrial settings such as arctic permafrost cave deposits, lake beds of the Dry Valleys of Antarctica, and in aufeis (river icings) from rivers of N.E. Alaska. A series of laboratory experiments were conducted that simulated cryogenic carbonate formation on Mars in order to understand their isotopic systematics. The results indicate that carbonates grown under martian conditions show variable enrichments from starting bicarbonate fluids in both carbon and oxygen isotopes beyond equilibrium values. |
format |
Other/Unknown Material |
author |
Niles, Paul B. Socki, Richard A. Fu, Qi Sun, Tao Romanek, Christopher S. Gibson, Everett K. Jr. |
author_facet |
Niles, Paul B. Socki, Richard A. Fu, Qi Sun, Tao Romanek, Christopher S. Gibson, Everett K. Jr. |
author_sort |
Niles, Paul B. |
title |
Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
title_short |
Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
title_full |
Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
title_fullStr |
Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
title_full_unstemmed |
Martian Cryogenic Carbonate Formation: Stable Isotope Variations Observed in Laboratory Studies |
title_sort |
martian cryogenic carbonate formation: stable isotope variations observed in laboratory studies |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20140006563 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic permafrost Alaska |
genre_facet |
Antarc* Antarctica Arctic permafrost Alaska |
op_source |
CASI |
op_relation |
Document ID: 20140006563 http://hdl.handle.net/2060/20140006563 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766247785814818816 |