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Spectroscopic Characterization of Mineralogy and Its Diversity Across Vesta

De Sanctis, M.C. and Ammannito, E. and Capria, M. T. and Tosi, F. and Capaccioni, F. and Zambon, F. and Carraro, F. and Fonte, S. and Frigeri, A. and Jaumann, R. and Magni, G. and Marchi, S. and McCord, T. B. and McFadden, L.A. and McSween, H.Y. and Mittlefehldt, David W. and Nathues, A. and Palomba, E. and Pieters, C. and Raymond, C.A. and Russell, C.T. and Toplis, M. and Turrini, D. (2012) Spectroscopic Characterization of Mineralogy and Its Diversity Across Vesta. Science, 336, pp. 697-700. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.1219270

Full text not available from this repository.

Abstract

The mineralogy of Vesta, based on data obtained by the Dawn spacecraft’s visible and infrared spectrometer, is consistent with howardite-eucrite-diogenite meteorites. There are considerable regional and local variations across the asteroid: Spectrally distinct regions include the south-polar Rheasilvia basin, which displays a higher diogenitic component, and equatorial regions, which show a higher eucritic component. The lithologic distribution indicates a deeper diogenitic crust, exposed after excavation by the impact that formed Rheasilvia, and an upper eucritic crust. Evidence for mineralogical stratigraphic layering is observed on crater walls and in ejecta. This is broadly consistent with magma-ocean models, but spectral variability highlights local variations, which suggests that the crust can be a complex assemblage of eucritic basalts and pyroxene cumulates. Overall, Vesta mineralogy indicates a complex magmatic evolution that led to a differentiated crust and mantle.

Item URL in elib:https://elib.dlr.de/80371/
Document Type:Article
Title:Spectroscopic Characterization of Mineralogy and Its Diversity Across Vesta
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
De Sanctis, M.C.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Ammannito, E.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Capria, M. T.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Tosi, F.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Capaccioni, F.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Zambon, F.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Carraro, F.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Fonte, S.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Frigeri, A.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Jaumann, R. ralf.jaumann (at) dlr.deUNSPECIFIED
Magni, G.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Marchi, S.NASA Lunar Science Institute, Boulder, CO, USAUNSPECIFIED
McCord, T. B.Bear Fight Institute, Winthrop, WA, USAUNSPECIFIED
McFadden, L.A.NASA, Goddard Space Flight Center, Greenbelt, MD, USAUNSPECIFIED
McSween, H.Y.Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN, USAUNSPECIFIED
Mittlefehldt, David W.NASA, Johnson Space Center, mail code KR, 2101 NASA Parkway, Houston, TX 77058UNSPECIFIED
Nathues, A.Max-Planck Institute for Solar System Research, Katlenburg-Lindau, GermanyUNSPECIFIED
Palomba, E.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Pieters, C.Brown University, Providence, RI, USAUNSPECIFIED
Raymond, C.A.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Russell, C.T.Institute of Geophysics, University of California, Los Angeles, Los Angeles, CA 90095UNSPECIFIED
Toplis, M.Observatoire Midi-Pyrenees, Toulouse, FranceUNSPECIFIED
Turrini, D.Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, ItalyUNSPECIFIED
Date:May 2012
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
In DOAJ:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:336
DOI :10.1126/science.1219270
Page Range:pp. 697-700
Publisher:American Association for the Advancement of Science (AAAS)
Status:Published
Keywords:Vesta, Dawn, mineralogy
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 08:27
Last Modified:08 Mar 2018 18:50

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