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Periglacial geomorphology and landscape evolution of the Tempe Terra region, Mars

Van Gasselt, Stephan and Hauber, Ernst and Rossi, Angelo and Dumke, Alexander and Orosei, Roberto and Neukum, Gerhard (2011) Periglacial geomorphology and landscape evolution of the Tempe Terra region, Mars. In: Special Publications, 356. The Geological Society of London. pp. 43-67. ISBN 978-1-86239-330-1.

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Official URL: http://sp.lyellcollection.org/content/356/1

Abstract

A systematic survey was undertaken and an investigation carried out into the geomorphological characteristics of lobate debris aprons in the Tempe Terra region of Mars. Based on the most recent high-resolution (sub 15 m per pixel) imagery and on new topography data, this study endeavoured to raise and discuss questions regarding their formation (emplacement) and modification (deformation sequence), as well as the role of a mantling deposit found at mid-latitude locations on Mars. Furthermore, a model for the formation of debris aprons in the Tempe Terra–Mareotis Fossae settings is proposed. Image survey, in combination with basic morphometric observations within a geomorphological context, provided additional insights into the source, emplacement and modification of hillslope debris material. Our results imply that lobate debris aprons are not mainly relicts of remnant degradation but are substantially composed of mantling material probably deposited episodically in the course of planetary obliquity changes and over a long timespan, as derived erosion rates suggest. Crater-size frequency statistics and the derivation of absolute ages show ages of sub-recent modification and document earlier resurfacing events.

Document Type:Book Section
Title:Periglacial geomorphology and landscape evolution of the Tempe Terra region, Mars
Authors:
AuthorsInstitution or Email of Authors
Van Gasselt, StephanFreie Universität Berlin
Hauber, Ernsternst.hauber@dlr.de
Rossi, AngeloJacobs University Bremen
Dumke, AlexanderFreie Universität Berlin
Orosei, RobertoInstitute of Physics of Interplanetary Space (IFSI), Roma
Neukum, GerhardFreie Universität Berlin
Date:2011
Refereed publication:Yes
Volume:356
Page Range:pp. 43-67
Editors:
EditorsEmail
Balme, M.UNSPECIFIED
Bargery, A.UNSPECIFIED
Gallagher, C.UNSPECIFIED
Gupta, S.UNSPECIFIED
Publisher:The Geological Society of London
Series Name:Special Publications
ISBN:978-1-86239-330-1
Status:Published
Keywords:Mars, HRSC, permafrost, water, ice, geomorphology, terrestrial analogue
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 Geology
Deposited By: Ernst Hauber
Deposited On:08 Dec 2011 15:32
Last Modified:12 Dec 2013 21:26

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