Geological framework of the south polar region of Mars.
The first 4 months of Mariner 9 photography of the south polar region are discussed. Three major geological units have been recognized, separated by erosional unconformities. From oldest to youngest they are: cratered terrain, pitted plains, and laminated terrain. The latter unit is unique in occurr...
Main Authors: | , , , , , |
---|---|
Language: | unknown |
Published: |
1972
|
Subjects: | |
Online Access: | http://ntrs.nasa.gov/search.jsp?R=19730032675 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:19730032675 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:19730032675 2023-05-15T17:39:50+02:00 Geological framework of the south polar region of Mars. Murray, B. C. Sharp, R. P. Leighton, R. B. Soderblom, L. A. Cutts, J. A. Milton, D. J. Unclassified, Unlimited, Publicly available Oct 1, 1972 http://ntrs.nasa.gov/search.jsp?R=19730032675 unknown http://ntrs.nasa.gov/search.jsp?R=19730032675 Accession ID: 73A17477 Copyright Other Sources 30 1972 ftnasantrs 2012-02-15T11:24:27Z The first 4 months of Mariner 9 photography of the south polar region are discussed. Three major geological units have been recognized, separated by erosional unconformities. From oldest to youngest they are: cratered terrain, pitted plains, and laminated terrain. The latter unit is unique in occurrence to the polar region, volatiles are probably involved in its origin, and may still be present within the laminated terrain as layered ice. The residual south polar cap has been observed to survive the disappearance of the thin annual CO2 frost deposit and to last virtually unchanged in outline through the southern summer. That exposed deposit is inferred to be composed of water-ice. The residual cap appears to lie at the apex of an unusual quasi-circular structure composed of laminated terrain; a similar structure also appears to exist near the north pole. Other/Unknown Material North Pole NASA Technical Reports Server (NTRS) North Pole |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
30 |
spellingShingle |
30 Murray, B. C. Sharp, R. P. Leighton, R. B. Soderblom, L. A. Cutts, J. A. Milton, D. J. Geological framework of the south polar region of Mars. |
topic_facet |
30 |
description |
The first 4 months of Mariner 9 photography of the south polar region are discussed. Three major geological units have been recognized, separated by erosional unconformities. From oldest to youngest they are: cratered terrain, pitted plains, and laminated terrain. The latter unit is unique in occurrence to the polar region, volatiles are probably involved in its origin, and may still be present within the laminated terrain as layered ice. The residual south polar cap has been observed to survive the disappearance of the thin annual CO2 frost deposit and to last virtually unchanged in outline through the southern summer. That exposed deposit is inferred to be composed of water-ice. The residual cap appears to lie at the apex of an unusual quasi-circular structure composed of laminated terrain; a similar structure also appears to exist near the north pole. |
author |
Murray, B. C. Sharp, R. P. Leighton, R. B. Soderblom, L. A. Cutts, J. A. Milton, D. J. |
author_facet |
Murray, B. C. Sharp, R. P. Leighton, R. B. Soderblom, L. A. Cutts, J. A. Milton, D. J. |
author_sort |
Murray, B. C. |
title |
Geological framework of the south polar region of Mars. |
title_short |
Geological framework of the south polar region of Mars. |
title_full |
Geological framework of the south polar region of Mars. |
title_fullStr |
Geological framework of the south polar region of Mars. |
title_full_unstemmed |
Geological framework of the south polar region of Mars. |
title_sort |
geological framework of the south polar region of mars. |
publishDate |
1972 |
url |
http://ntrs.nasa.gov/search.jsp?R=19730032675 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
North Pole |
geographic_facet |
North Pole |
genre |
North Pole |
genre_facet |
North Pole |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19730032675 Accession ID: 73A17477 |
op_rights |
Copyright |
_version_ |
1766140598771777536 |