Are there carbonate deposits in the Valles Marineris, Mars?
The precipitation of 30 mbar of Martian atmosphere CO2 as carbonates in lakes is suggested to be the source of thick sequences of layered deposits found in the Valles Marineris. Support is adduced for this scenario from processes occurring in the perennially frozen dry valley lakes of Antarctica, wh...
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| Format: | Other/Unknown Material |
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1989
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| Online Access: | http://hdl.handle.net/2060/19890016991 |
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890016991 |
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890016991 2023-05-15T13:35:10+02:00 Are there carbonate deposits in the Valles Marineris, Mars? Nedell, Susan S. Mckay, Christopher P. Unclassified, Unlimited, Publicly available Mar 1, 1989 application/pdf http://hdl.handle.net/2060/19890016991 unknown Document ID: 19890016991 Accession ID: 89N26362 http://hdl.handle.net/2060/19890016991 No Copyright CASI LUNAR AND PLANETARY EXPLORATION Exobiology and Future Mars Missions; p 44-4 1989 ftnasantrs 2015-03-15T05:55:13Z The precipitation of 30 mbar of Martian atmosphere CO2 as carbonates in lakes is suggested to be the source of thick sequences of layered deposits found in the Valles Marineris. Support is adduced for this scenario from processes occurring in the perennially frozen dry valley lakes of Antarctica, where the lake water is supersaturated with atmospheric gases. Atmospheric CO2 would have accumulated in such Martian lakes as temperature fell, and the presence of an insulating ice cover would have allowed liquid water to exist. Other/Unknown Material Antarc* Antarctica NASA Technical Reports Server (NTRS) Valles ENVELOPE(-58.783,-58.783,-62.167,-62.167) |
| institution |
Open Polar |
| collection |
NASA Technical Reports Server (NTRS) |
| op_collection_id |
ftnasantrs |
| language |
unknown |
| topic |
LUNAR AND PLANETARY EXPLORATION |
| spellingShingle |
LUNAR AND PLANETARY EXPLORATION Nedell, Susan S. Mckay, Christopher P. Are there carbonate deposits in the Valles Marineris, Mars? |
| topic_facet |
LUNAR AND PLANETARY EXPLORATION |
| description |
The precipitation of 30 mbar of Martian atmosphere CO2 as carbonates in lakes is suggested to be the source of thick sequences of layered deposits found in the Valles Marineris. Support is adduced for this scenario from processes occurring in the perennially frozen dry valley lakes of Antarctica, where the lake water is supersaturated with atmospheric gases. Atmospheric CO2 would have accumulated in such Martian lakes as temperature fell, and the presence of an insulating ice cover would have allowed liquid water to exist. |
| format |
Other/Unknown Material |
| author |
Nedell, Susan S. Mckay, Christopher P. |
| author_facet |
Nedell, Susan S. Mckay, Christopher P. |
| author_sort |
Nedell, Susan S. |
| title |
Are there carbonate deposits in the Valles Marineris, Mars? |
| title_short |
Are there carbonate deposits in the Valles Marineris, Mars? |
| title_full |
Are there carbonate deposits in the Valles Marineris, Mars? |
| title_fullStr |
Are there carbonate deposits in the Valles Marineris, Mars? |
| title_full_unstemmed |
Are there carbonate deposits in the Valles Marineris, Mars? |
| title_sort |
are there carbonate deposits in the valles marineris, mars? |
| publishDate |
1989 |
| url |
http://hdl.handle.net/2060/19890016991 |
| op_coverage |
Unclassified, Unlimited, Publicly available |
| long_lat |
ENVELOPE(-58.783,-58.783,-62.167,-62.167) |
| geographic |
Valles |
| geographic_facet |
Valles |
| genre |
Antarc* Antarctica |
| genre_facet |
Antarc* Antarctica |
| op_source |
CASI |
| op_relation |
Document ID: 19890016991 Accession ID: 89N26362 http://hdl.handle.net/2060/19890016991 |
| op_rights |
No Copyright |
| _version_ |
1766061878166945792 |