Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars
International audience Icy deposits surrounding Planum Boreum, Mars, contain crucial information for deciphering paleoclimate and past geologic processes at the martian north pole. One such deposit, Abalos Mensa, is an enigmatic wedge of material located near the ~ 1 km high Rupes Tenuis. Its unique...
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ftinsu:oai:HAL:hal-01099076v1 2023-06-18T03:42:14+02:00 Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars Brothers, T.C. Holt, J.W. Spiga, Aymeric Institute of Geophysics Austin (IG) University of Texas at Austin Austin Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) 2013 https://hal.science/hal-01099076 https://hal.science/hal-01099076/document https://hal.science/hal-01099076/file/2013GeoRL.40.1334B.pdf en eng HAL CCSD American Geophysical Union hal-01099076 https://hal.science/hal-01099076 https://hal.science/hal-01099076/document https://hal.science/hal-01099076/file/2013GeoRL.40.1334B.pdf info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01099076 Geophysical Research Letters, 2013, 40 (7), pp.1334-1339 [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology info:eu-repo/semantics/article Journal articles 2013 ftinsu 2023-06-06T01:27:16Z International audience Icy deposits surrounding Planum Boreum, Mars, contain crucial information for deciphering paleoclimate and past geologic processes at the martian north pole. One such deposit, Abalos Mensa, is an enigmatic wedge of material located near the ~ 1 km high Rupes Tenuis. Its unique location and lobate morphology have fostered formation hypotheses that assume either fluvial or aeolian erosion of a once-larger ice deposit. The aeolian scenario posed previously requires impact shielding of ancient basal unit material to provide an erosional remnant which seeds later deposition, while the fluvial hypotheses invoke cryovolcanism beneath the younger north polar layered deposits (NPLD) and associated outflow to erode the adjacent chasmata. Here we combine newly available radar sounding data, high-resolution imagery, digital elevation models, and atmospheric modeling to examine internal structure and infer both the mechanisms for, and timing of, Abalos Mensa formation. From this integrative approach, we conclude that Abalos Mensa formed as a distinct feature via atmospheric deposition following erosion of Rupes Tenuis and grew concurrently with the rest of Planum Boreum as the NPLD accumulated. The required processes are consistent with those observed today: no exotic phenomena (cryovolcanism, fluvial activity, or impact shielding) appear necessary to explain the formation of Abalos Mensa. Key Points Formation of Abalos Mensa is consistent with aeolian processes Combination of radar data, imagery improve scientific investigation of Mars Atmospheric modeling using paleo-topography is a novel, useful approach ©2013. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper North Pole Institut national des sciences de l'Univers: HAL-INSU North Pole |
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Institut national des sciences de l'Univers: HAL-INSU |
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English |
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[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology |
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[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology Brothers, T.C. Holt, J.W. Spiga, Aymeric Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
topic_facet |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology |
description |
International audience Icy deposits surrounding Planum Boreum, Mars, contain crucial information for deciphering paleoclimate and past geologic processes at the martian north pole. One such deposit, Abalos Mensa, is an enigmatic wedge of material located near the ~ 1 km high Rupes Tenuis. Its unique location and lobate morphology have fostered formation hypotheses that assume either fluvial or aeolian erosion of a once-larger ice deposit. The aeolian scenario posed previously requires impact shielding of ancient basal unit material to provide an erosional remnant which seeds later deposition, while the fluvial hypotheses invoke cryovolcanism beneath the younger north polar layered deposits (NPLD) and associated outflow to erode the adjacent chasmata. Here we combine newly available radar sounding data, high-resolution imagery, digital elevation models, and atmospheric modeling to examine internal structure and infer both the mechanisms for, and timing of, Abalos Mensa formation. From this integrative approach, we conclude that Abalos Mensa formed as a distinct feature via atmospheric deposition following erosion of Rupes Tenuis and grew concurrently with the rest of Planum Boreum as the NPLD accumulated. The required processes are consistent with those observed today: no exotic phenomena (cryovolcanism, fluvial activity, or impact shielding) appear necessary to explain the formation of Abalos Mensa. Key Points Formation of Abalos Mensa is consistent with aeolian processes Combination of radar data, imagery improve scientific investigation of Mars Atmospheric modeling using paleo-topography is a novel, useful approach ©2013. American Geophysical Union. All Rights Reserved. |
author2 |
Institute of Geophysics Austin (IG) University of Texas at Austin Austin Laboratoire de Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Brothers, T.C. Holt, J.W. Spiga, Aymeric |
author_facet |
Brothers, T.C. Holt, J.W. Spiga, Aymeric |
author_sort |
Brothers, T.C. |
title |
Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
title_short |
Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
title_full |
Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
title_fullStr |
Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
title_full_unstemmed |
Orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for Abalos Mensa, Mars |
title_sort |
orbital radar, imagery, and atmospheric modeling reveal an aeolian origin for abalos mensa, mars |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01099076 https://hal.science/hal-01099076/document https://hal.science/hal-01099076/file/2013GeoRL.40.1334B.pdf |
geographic |
North Pole |
geographic_facet |
North Pole |
genre |
North Pole |
genre_facet |
North Pole |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-01099076 Geophysical Research Letters, 2013, 40 (7), pp.1334-1339 |
op_relation |
hal-01099076 https://hal.science/hal-01099076 https://hal.science/hal-01099076/document https://hal.science/hal-01099076/file/2013GeoRL.40.1334B.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1769008099197190144 |