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The Crater Chains of Vesta - a Morphological Study

Carsenty, U. and Denevi, B.W. and Wagner, R.J. and Schenk, P. and Hviid, S.F. and Buczkowski, D.L. and Jaumann, R. and Raymond, C.A. and Russell, C.T. (2012) The Crater Chains of Vesta - a Morphological Study. 44th annual meeting of the Division for Planetary Sciences of the American Astronomical Society, 14.-19.10.12, Reno, Nevada,USA.

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Abstract

Abstract The Dawn spacecraft spent 141 days in the Low Mapping Orbit (LAMO) around Vesta obtaining 10251 images with an average resolution of 20m per pixel. The surface of Vesta displays a diverse geological structure - numerous impact craters, extensive ejecta blankets, giant troughs around the equator, impact basins, and regions with enigmatic dark as well as bright material (1). The LAMO imaging data set has been used to search, over the entire illuminated surface, for crater chains, which are groups of depressions (round or elongated) in mostly linear alignments - resembling a chain of pearls. More than 300 features were identified as crater chains most of which have an East - West orientation. Based on morphology the observed crater chains were divided into 5 subgroups. 1) Single crater chain (A) - a linear alignment of craters associated with other types of linear features (e.g. grooves, faults, troughs, ridges, or trenches). 2) Single crater chain (NA) - a linear alignment of craters not associated with other types of linear features. 3) Crater chain families - segments of short crater chains aligned parallel to each other. Some are associated with lineaments and some are not. 4) Swarm - a wide “band” of craters stretching in the East - West direction. 5) Special cases which do not fit in the other groups or are mixtures of the other types. The global distribution of crater chains and crater counts will be used to analyze the various morphological groups. Hypotheses for the formation mechanisms of the different groups will be explored. (1) Jaumann, et al, 2012 - Science 336,687-690

Item URL in elib:https://elib.dlr.de/80287/
Document Type:Conference or Workshop Item (Paper)
Title:The Crater Chains of Vesta - a Morphological Study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Carsenty, U.uri.carsenty (at) dlr.deUNSPECIFIED
Denevi, B.W.Johns Hopkins University APLUNSPECIFIED
Wagner, R.J.roland.wagner (at) dlr.deUNSPECIFIED
Schenk, P.LPIUNSPECIFIED
Hviid, S.F.stubbe.hviid (at) dlr.deUNSPECIFIED
Buczkowski, D.L.Johns Hopkins University APLUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Raymond, C.A.JPL, California Institute of TechnologyUNSPECIFIED
Russell, C.T.UCLA, Institute of GeophysicsUNSPECIFIED
Date:October 2012
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Vesta
Event Title:44th annual meeting of the Division for Planetary Sciences of the American Astronomical Society
Event Location:Reno, Nevada,USA
Event Type:international Conference
Event Dates:14.-19.10.12
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 DAWN
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Aydin, Zeynep
Deposited On:09 Jan 2013 11:18
Last Modified:09 Jan 2013 11:18

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