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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, 2012-10-14 - 2012-10-19, Reno, Nevada,USA.

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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
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Denevi, B.W.Johns Hopkins University APLUNSPECIFIEDUNSPECIFIED
Buczkowski, D.L.Johns Hopkins University APLUNSPECIFIEDUNSPECIFIED
Raymond, C.A.JPL, California Institute of TechnologyUNSPECIFIEDUNSPECIFIED
Russell, C.T.UCLA, Institute of GeophysicsUNSPECIFIEDUNSPECIFIED
Date:October 2012
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
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 Start Date:14 October 2012
Event End Date:19 October 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project DAWN (old)
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:24 Apr 2024 19:46

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