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Noachian–Hesperian geologic history of the Echus Chasma and Kasei Valles system on Mars: New data and interpretations

Chapman, Mary and Neukum, Gerhard and Dumke, Alexander and Michael, Greg and Van Gasselt, Stephan and Kneissl, Thomas and Zuschneid, Wilhelm and Hauber, Ernst and Ansan, Veronique and Mangold, Nicolas and Masson, Philippe (2010) Noachian–Hesperian geologic history of the Echus Chasma and Kasei Valles system on Mars: New data and interpretations. Earth and Planetary Science Letters, 294, pp. 256-271. Elsevier. doi: 10.1016/j.epsl.2009.11.032.


Official URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V61-4Y6B1VJ-1&_user=100058&_coverDate=06%2F01%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000007338&_version=1&_urlVersion=0&_userid=100058&md5=e85ce7f21


New high-resolution datasets have prompted a mapping-based study of the 2500-km-long Echus Chasma and Kasei Valles system that utilizes geomorphic details, stratigraphic relations, and cratering statistics derived from the new datasets. Our results suggest that between the Hesperian and Amazonian Epochs on Mars (3.7 Ga to Recent) the study areawas affected by at least 4 episodes of widespread volcanic activity and 4 periods of episodic fluvio-glacial activity. This paper discusses the Noachian to Hesperian (N2.6 Ga) history of the study area, during which time in the Hesperian three of the volcanic episodes took place along with the first two episodes of fluvioglacial activity. Highlights of our new findings and refinements from this time period include (1) two ancient western floods sourced from Tharsis that occurred around 3.61 and 3.4 Ga and carved the east-trending path of north Kasei Valles; (2) Uranius Dorsum with 58 aligned cones along its length that was emplaced in north Kasei around 3.6 Ga between these periods of early flooding; (3) possible ash deposits surrounding Echus Chasma, one of which contains narrow dendritic valley systems that may have been carved over a period of about 10,000 yr; and (4) evidence that suggests glaciers and near-surface ice may have contributed to erosion of local units.

Item URL in elib:https://elib.dlr.de/67494/
Document Type:Article
Title:Noachian–Hesperian geologic history of the Echus Chasma and Kasei Valles system on Mars: New data and interpretations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Chapman, MaryPlanetary Science Institute, Tucson, Arizona, USAUNSPECIFIED
Neukum, GerhardFU BerlinUNSPECIFIED
Dumke, AlexanderFU BerlinUNSPECIFIED
Michael, GregFU BerlinUNSPECIFIED
Van Gasselt, StephanFU BerlinUNSPECIFIED
Kneissl, ThomasFU BerlinUNSPECIFIED
Zuschneid, WilhelmFU BerlinUNSPECIFIED
Hauber, Ernsternst.hauber (at) dlr.deUNSPECIFIED
Ansan, VeroniqueLPGN, CNRS, Université Nantes, FranceUNSPECIFIED
Mangold, NicolasLPGN, CNRS, Université Nantes, FranceUNSPECIFIED
Masson, PhilippeIDES, CNRS, Université Paris Sud, Orsay, FranceUNSPECIFIED
Journal or Publication Title:Earth and Planetary Science Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.epsl.2009.11.032
Page Range:pp. 256-271
Keywords:Mars, water, erosion, outflow channel, chronology
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:06 Jan 2011 11:40
Last Modified:31 Jul 2019 19:30

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