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The Medusae Fossae Formation (MFF): Marginal flow features and their implication for the origin of the MFF

Bucher, Tilman and Hauber, Ernst and Hoffmann, Harald and Neukum, Gerhard (2005) The Medusae Fossae Formation (MFF): Marginal flow features and their implication for the origin of the MFF. In: Geophysical Research Abstracts, 7, abstractEGU05-A. 2nd General Assembly of the European Geosciences Union, 2005-04-25 - 2005-04-29, Vienna (Austria). ISSN 1607-7962

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Abstract

The HRSC on Mars Express has mapped a large contiguous region from about 1.5°N to 14°S and 175.5°E to 181°E in the western Lucus Planum. Among other features, the images cover Apollinaris Patera (AP) and the transition from the dichotomy to the Elysium Planitia (EP) with a spatial resolution from 12 to 45 m per pixel. A major part of this region is dominated by the western part of the Medusae Fossae Formation (MFF). In this region, the MFF shows distinct morphologic units which include (1) the "ridge and valley" region,(2) areas around AP mainly characterised by large yardangs, and (3) a large (approx. 50,000 km²) and relatively flat NE-trending region with isolated hills. It is located between AP, the "ridge and valley" region and the EP. The area is strongly dissected by curvilinear fractures and depressions, which are often part of flow-like structures. Both convex and concave flow structures are observed. Several of these convex flows show an imbricated and platy surface texture and a fold-like character. Individual concave structures (e.g. in depressions) resemble plates and dessication cracks as observed in dried mud. The most prominent fold structures are found - and seem to originate - in areas with relatively high local relief, which is probably pre-depositional. In other areas with low local relief the direction and character of the flows vary over short distances. The overall style of the flow features indicates a high viscosity and at least for some of the features an almost solid state during deposition and/or deformation. The particular geomorphologic characteristics of this area might be an additional key to solve the question whether the MFF was formed by volcanic, aeolian or climate-controlled processes.

Item URL in elib:https://elib.dlr.de/21645/
Document Type:Conference or Workshop Item (Poster)
Title:The Medusae Fossae Formation (MFF): Marginal flow features and their implication for the origin of the MFF
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bucher, Tilmantilman.bucher (at) dlr.deUNSPECIFIED
Hauber, Ernsternst.hauber (at) dlr.deUNSPECIFIED
Hoffmann, Haraldharald.hoffmann (at) dlr.deUNSPECIFIED
Neukum, GerhardFree University BerlinUNSPECIFIED
Date:April 2005
Journal or Publication Title:Geophysical Research Abstracts
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:7
Page Range:abstractEGU05-A
ISSN:1607-7962
Status:Published
Keywords:Mars, HRSC, Medusa Fossae Formation
Event Title:2nd General Assembly of the European Geosciences Union
Event Location:Vienna (Austria)
Event Type:international Conference
Event Dates:2005-04-25 - 2005-04-29
Organizer:European Geosciences Union
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Projekt MARS-EXPRESS / HRSC (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Institute of Planetary Research > Planetary Geology
Deposited By: Bucher, Tilman
Deposited On:25 Nov 2013 10:53
Last Modified:31 Jul 2019 19:16

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