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Reconstructing the infilling history within Robert Sharp Crater, Mars: Insights from morphology and stratigraphy

Brossier, Jérémy F. and Le Deit, L. and Hauber, E. and Mangold, N. and Carter, J. and Jaumann, R. (2015) Reconstructing the infilling history within Robert Sharp Crater, Mars: Insights from morphology and stratigraphy. EPSC 2015, 28 Sept - 2 Oct 2015, Nantes, France.

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Abstract

According to recent mineralogical study, the presence of an iron oxi-hydroxide (akaganéite) which form under specific conditions, has been detected in Robert Sharp crater, located in the equatorial region of Mars (133.59°'E, -4.12°N), implying an acidic and oxidizing environment in this region. These deposits of akaganéite might be the ultimate alteration phase of a drying lake or lagoon within Robert Sharp. Morphological and stratigraphical studies and, as well, age determination has been carried out in order to constrain the geological and hydrological history of Robert Sharp. Robert Sharp has known a varied geological history, including the formation of fretted terrains and an aerial/aeolian filling during the Hesperian epoch. The presence of valleys and fan-shaped deposits, and the detection of several aqueous minerals, in the crater suggest the presence of a fluvio-lacustrine activity phase in the crater during the last period of the Martian chronology, the Amazonian epoch. The existence of a putative paleo-lake should be short-time and estimated between 1.3 Ga and 500 Ma. Thus, this study shows that Mars has known several phases of aqueous activities well after the late Noachian/ early Hesperian period.

Item URL in elib:https://elib.dlr.de/100473/
Document Type:Conference or Workshop Item (Poster)
Additional Information:Work carried out during an internship in 2nd year-Master
Title:Reconstructing the infilling history within Robert Sharp Crater, Mars: Insights from morphology and stratigraphy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Brossier, Jérémy F.Jeremy.Brossier (at) dlr.deUNSPECIFIED
Le Deit, L.Université de Nantes, Laboratoire de Planétologie et GéodynamiqueUNSPECIFIED
Hauber, E.ernst.hauber (at) dlr.deUNSPECIFIED
Mangold, N.LPGN, CNRS, Université Nantes, FranceUNSPECIFIED
Carter, J.Institut d’Astrophysique Spatiale, CNRS Université Paris- Sud, Orsay, FranceUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Mars, remote sensing, morphology, geological mapping, Robert Sharp.
Event Title:EPSC 2015
Event Location:Nantes, France
Event Type:international Conference
Event Dates:28 Sept - 2 Oct 2015
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: Brossier, Jérémy F.
Deposited On:03 Dec 2015 17:11
Last Modified:22 Jan 2016 12:37

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