elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Sequence of infilling events in Gale crater, Mars: Results from morphology, stratigraphy, and mineralogy

Le Deit, L. and Hauber, E. and Fueten, F. and Pondrelli, M. and Rossi, A.P. and Jaumann, R. (2013) Sequence of infilling events in Gale crater, Mars: Results from morphology, stratigraphy, and mineralogy. Journal of Geophysical Research, 118, pp. 1-35. Wiley. DOI: 10.1002/2012JE004322 ISSN 0148-0227

[img] PDF
9MB

Abstract

Gale Crater is filled by sedimentary deposits including a mound of layered deposits, Aeolis Mons. Using orbital data, we mapped the crater infillings and measured their geometry to determine their origin. The sediment of Aeolis Mons is interpreted to be primarily air fall material such as dust, volcanic ash, fine-grained impact products, and possibly snow deposited by settling from the atmosphere, as well as wind-blown sands cemented in the crater center. Unconformity surfaces between the geological units are evidence for depositional hiatuses. Crater floor material deposited around Aeolis Mons and on the crater wall is interpreted to be alluvial and colluvial deposits. Morphologic evidence suggests that a shallow lake existed after the formation of the lowermost part of Aeolis Mons (the Small yardangs unit and the mass-wasting deposits). A suite of several features including patterned ground and possible rock glaciers are suggestive of periglacial processes with a permafrost environment after the first hundreds of thousands of years following its formation, dated to ~3.61 Ga, in the Late Noachian/Early Hesperian. Episodic melting of snow in the crater could have caused the formation of sulfates and clays in Aeolis Mons, the formation of rock glaciers and the incision of deep canyons and valleys along its flanks as well as on the crater wall and rim, and the formation of a lake in the deepest portions of Gale.

Item URL in elib:https://elib.dlr.de/86916/
Document Type:Article
Title:Sequence of infilling events in Gale crater, Mars: Results from morphology, stratigraphy, and mineralogy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Le Deit, L.Université de Nantes, Laboratoire de Planétologie et GéodynamiqueUNSPECIFIED
Hauber, E.ernst.hauber (at) dlr.deUNSPECIFIED
Fueten, F.Department of Earth Sciences, Brock University, St. Catherines, Ontario, CanadaUNSPECIFIED
Pondrelli, M.International Research School of Planetary Sciences, Univ. d'Annunzio, Pescara, ItalyUNSPECIFIED
Rossi, A.P.Jacobs University BremenUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Date:December 2013
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:118
DOI :10.1002/2012JE004322
Page Range:pp. 1-35
Publisher:Wiley
ISSN:0148-0227
Status:Published
Keywords:Mars; geology; remote sensing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt MARS-EXPRESS / HRSC
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Voigt, Joana
Deposited On:06 Jan 2014 08:53
Last Modified:31 Jul 2019 19:44

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.