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Geological evolution of the Tyras Vallis paleolacustrine system, Mars

Di Achille, Gaetano and Marinangeli, Lucia and Ori, Gian-Gabriele and Hauber, Ernst and Gwinner, Klaus and Reiss, Dennis and Neukum, Gerhard (2006) Geological evolution of the Tyras Vallis paleolacustrine system, Mars. Journal of Geophysical Research, 111 (E4), E04003. American Geophysical Union. DOI: 10.1029/2005JE002561

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Official URL: http://www.agu.org/pubs/crossref/2006/2005JE002561.shtml

Abstract

Using the new High Resolution Stereo Camera (HRSC) data and other Martian data sets, we reconstructed the hydrological history of an unnamed complex crater in the Xanthe Terra region. The crater hosted a lacustrine basin fed by a dense and centripetal drainage system, developed along its inner rim, and by the Tyras Vallis channel. Where the Tyras Vallis opens into the crater, a prominent delta-like feature is visible, characterized by a central terrace and two small longitudinal scarps. This deposit has been used as sedimentary recorder of the crater lake history and allowed assessment of the overall hydrological evolution. Two major stands of the water level have been inferred at 700 and 550 m above the crater floor, based on the correlation between the morphology and topography of the fan and the crater floor deposits. Our reconstruction reveals a complex sedimentary evolution of the fan, which underwent deltaic and alluvial sedimentation, as a result of the different lake water levels and Tyras Vallis supplies. A dominant erosional evolution of the fan-delta was determined by the interaction between the fluvial characteristics and basin wave regime. Wave height analysis and morphological comparison with terrestrial analogues support this hypothesis. The lacustrine activity could be chronologically placed between the Late Noachian and the Hesperian. The climatic conditions could have allowed the recharge of the regional groundwater system by precipitation and episodic fluvial activity. However, also heating effects of cratering could have affected the system, rejuvenating or accelerating the recharge of the local aquifer.

Item URL in elib:https://elib.dlr.de/44847/
Document Type:Article
Title:Geological evolution of the Tyras Vallis paleolacustrine system, Mars
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Di Achille, GaetanoInternational Research School of Planetary Sciences, Universita' D'Annunzio, Pescara, ItalyUNSPECIFIED
Marinangeli, LuciaInternational Research School of Planetary Sciences, Universita' D'Annunzio, Pescara, ItalyUNSPECIFIED
Ori, Gian-GabrieleInternational Research School of Planetary Sciences, Universita' D'Annunzio, Pescara, ItalyUNSPECIFIED
Hauber, ErnstUNSPECIFIEDUNSPECIFIED
Gwinner, KlausUNSPECIFIEDUNSPECIFIED
Reiss, DennisUNSPECIFIEDUNSPECIFIED
Neukum, GerhardFU BerlinUNSPECIFIED
Date:8 April 2006
Journal or Publication Title:Journal of Geophysical Research
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Volume:111
DOI :10.1029/2005JE002561
Page Range:E04003
Publisher:American Geophysical Union
Status:Published
Keywords:Mars, HRSC, delta, fan, sedimentology, water
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 - Vorhaben Vergleichende Planetologie (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Hauber, Ernst
Deposited On:29 Sep 2006
Last Modified:12 Dec 2013 20:21

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