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Sedimentary deposits in Xanthe Terra: Implications for the ancient climate on Mars

Hauber, Ernst and Gwinner, Klaus and Kleinhans, Maarten and Reiss, Dennis and Di Achille, Gaetano and Ori, Gian-Gabriele and Scholten, Frank and Marinangeli, Lucia and Jaumann, Ralf and Neukum, Gerhard (2009) Sedimentary deposits in Xanthe Terra: Implications for the ancient climate on Mars. Planetary and Space Science (57), pp. 944-957. Elsevier. doi: 10.1016/j.pss.2008.06.009.

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A variety of sedimentary deposits is observed in Xanthe Terra, Mars, including Gilbert-type deltas, fan deltas dominated by resedimentation processes, and alluvial fans. Sediments were provided through deeply incised valleys, which were probably incised by both runoff and groundwater sapping. Mass balances based on High-Resolution Stereo Camera (HRSC) digital terrain models show that up to ~30% of the material that was eroded in the valleys is present as deltas or alluvial fan deposits. Stratigraphic relationships and crater counts indicate an ageof ~4.0 to ~3.8 Ga for the fluvial activity. Hydrologic modeling indicates that the deposits were probably formed in geologically very short time scales. Our results point to episodes of a warmer and wetter climate on early Mars, followed by a long period of significantly reduced erosion rates.

Item URL in elib:https://elib.dlr.de/59793/
Document Type:Article
Title:Sedimentary deposits in Xanthe Terra: Implications for the ancient climate on Mars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hauber, Ernsternst.hauber (at) dlr.deUNSPECIFIED
Gwinner, Klausklaus.gwinner (at) dlr.deUNSPECIFIED
Kleinhans, MaartenUniversity of UtrechtUNSPECIFIED
Reiss, DennisWestfälische Wilhelms-Universität MünsterUNSPECIFIED
Di Achille, GaetanoUniversita d`Annunzio PescaraUNSPECIFIED
Ori, Gian-GabrieleUniversita d`Annunzio PescaraUNSPECIFIED
Scholten, Frankfrank.scholten (at) dlr.deUNSPECIFIED
Marinangeli, LuciaUniversita d`Annunzio PescaraUNSPECIFIED
Jaumann, Ralfralf.jaumann (at) dlr.deUNSPECIFIED
Neukum, GerhardFreie Universität BerlinUNSPECIFIED
Journal or Publication Title:Planetary and Space Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.pss.2008.06.009
Page Range:pp. 944-957
Keywords:Mars, HRSC, water, deltas, fans, sedimentation, fluvial processes, erosion
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: Hauber, Ernst
Deposited On:26 Aug 2009 09:10
Last Modified:08 Mar 2018 18:48

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