The geology of the Viking Lander 2 site
Models are discussed of several competitive geologic histories that can be hypothesized for the Viking Lander 2 site, none of which is uniquely persuasive. The craft landed on a flat plain of fine-grained sediment overlain by dispersed evenly distributed boulders. The fine-grain material appears to...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19780027527 2023-05-15T16:37:38+02:00 The geology of the Viking Lander 2 site Mutch, T. A. Arvidson, R. E. Guinness, E. A. Binder, A. B. Morris, E. C. Unclassified, Unlimited, Publicly available Sep 30, 1977 http://ntrs.nasa.gov/search.jsp?R=19780027527 unknown http://ntrs.nasa.gov/search.jsp?R=19780027527 Accession ID: 78A11436 Copyright Other Sources 91 Journal of Geophysical Research; 82; Sept. 30 1977 ftnasantrs 2012-02-15T13:25:29Z Models are discussed of several competitive geologic histories that can be hypothesized for the Viking Lander 2 site, none of which is uniquely persuasive. The craft landed on a flat plain of fine-grained sediment overlain by dispersed evenly distributed boulders. The fine-grain material appears to be part of a high-latitude mantle comprising material swept south of the pole regions. The boulders, which are covered by distinctive deep pits, or vesicles, may be the residue of an ejecta deposit from the crater Mie. Alternatively, they may be the remnants of lava flows which formerly covered the region. Polygonal sediment-filled cracks may have been formed by ice wedging, similar to the process that occurs in terrestrial permafrost regions. The possibility that they are desiccation polygons may not be excluded. Other/Unknown Material Ice permafrost NASA Technical Reports Server (NTRS) |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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91 |
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91 Mutch, T. A. Arvidson, R. E. Guinness, E. A. Binder, A. B. Morris, E. C. The geology of the Viking Lander 2 site |
topic_facet |
91 |
description |
Models are discussed of several competitive geologic histories that can be hypothesized for the Viking Lander 2 site, none of which is uniquely persuasive. The craft landed on a flat plain of fine-grained sediment overlain by dispersed evenly distributed boulders. The fine-grain material appears to be part of a high-latitude mantle comprising material swept south of the pole regions. The boulders, which are covered by distinctive deep pits, or vesicles, may be the residue of an ejecta deposit from the crater Mie. Alternatively, they may be the remnants of lava flows which formerly covered the region. Polygonal sediment-filled cracks may have been formed by ice wedging, similar to the process that occurs in terrestrial permafrost regions. The possibility that they are desiccation polygons may not be excluded. |
format |
Other/Unknown Material |
author |
Mutch, T. A. Arvidson, R. E. Guinness, E. A. Binder, A. B. Morris, E. C. |
author_facet |
Mutch, T. A. Arvidson, R. E. Guinness, E. A. Binder, A. B. Morris, E. C. |
author_sort |
Mutch, T. A. |
title |
The geology of the Viking Lander 2 site |
title_short |
The geology of the Viking Lander 2 site |
title_full |
The geology of the Viking Lander 2 site |
title_fullStr |
The geology of the Viking Lander 2 site |
title_full_unstemmed |
The geology of the Viking Lander 2 site |
title_sort |
geology of the viking lander 2 site |
publishDate |
1977 |
url |
http://ntrs.nasa.gov/search.jsp?R=19780027527 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19780027527 Accession ID: 78A11436 |
op_rights |
Copyright |
_version_ |
1766027931322155008 |