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Geomorphology of periglacial landforms within a small crater in Terra Cimmeria, Mars

Hughes, Andrea and Hauber, Ernst and Rossi, A.P. (2014) Geomorphology of periglacial landforms within a small crater in Terra Cimmeria, Mars. 2nd Mars Cryosphere Workshop, 2014-02-10 - 2014-02-12, Breslau, Polen.

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We present the results of geomorphological mapping of a small crater (35.88°S, 147.59°E) in Terra Cimmeria, Mars. We identified and assessed (qualitatively and quantitatively) many landforms in the crater which resemble features formed in terrestrial periglacial environments. These landforms include gullies and their depositional fans, stripes, polygons, moraine-like features, and possible solifluction lobes. We measured slopes of the fans in a HiRISE DEM and determined average values between 12° and 17°, typical for young fans on Mars. The crater has been filled with concentric crater fill (stratigraphically older) and/or a latitude dependent mantle (LDM) (younger). We deduce that a former glacier was active in this crater, which pushed up the crater floor material into moraine-like structures. A LMD was later deposited and subsequently eroded in areas, possibly due to aeolian processes, mass wasting, and the formation of gullies and alluvial fans. Polygons formed on the eroded walls of gullies (possibly indicating freeze/thaw processes). Through geomorphic mapping we can unravel the history of geologic processes in this crater and try to reconstruct the evolution of the very recent Martian climate.

Item URL in elib:https://elib.dlr.de/91986/
Document Type:Conference or Workshop Item (Speech)
Title:Geomorphology of periglacial landforms within a small crater in Terra Cimmeria, Mars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Rossi, A.P.Jacobs University BremenUNSPECIFIEDUNSPECIFIED
Date:11 February 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Mars, permafrost, cryosphere, water, ice, thaw, mapping, crater, debris flow, gullies, glaciers
Event Title:2nd Mars Cryosphere Workshop
Event Location:Breslau, Polen
Event Type:Workshop
Event Start Date:10 February 2014
Event End Date:12 February 2014
Organizer:Polish Academy of Sciences
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Projekt MARS-EXPRESS / HRSC (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Hauber, Ernst
Deposited On:19 Nov 2014 08:25
Last Modified:24 Apr 2024 19:57

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