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Compositional evidence of magmatic activity on Vesta

De Sanctis, M.C. and Ammannito, E. and Buczkowski, D.L. and Raymond, C. A. and Jaumann, R. and Mittlefehldt, D. W. and Capaccioni, F. and Capria, M. T. and Frigeri, A. and Magni, G. and Tosi, F. and Zambon, F. and Russell, C. T. (2014) Compositional evidence of magmatic activity on Vesta. Geophysical Research Letters, 41 (9), pp. 3038-3044. Wiley. doi: 10.1002/2014GL059646. ISSN 0094-8276.

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Official URL: http://dx.doi.org/10.1002/2014GL059646


Like the Earth and other terrestrial planets, the asteroid Vesta has a basaltic crust and a large iron core; its surface is dominated by impact craters of all sizes and has tectonic features. The presence of basaltic compositions, olivine, howardite-eucrite-diogenite meteorites, and models of Vesta's formation, suggests that volcanic and/or magmatic activity could have occurred on Vesta. A global search for lobate structures did not find unequivocal evidence of volcanic features. Nevertheless, several morphological properties of Brumalia Tholus on Vestalia Terra suggest that this topographic high most likely formed as a magmatic intrusion. The presence of more orthopyroxene-rich material relative to surrounding terrain in the ejecta of Teia, a fresh impact crater on the northern face of Brumalia Tholus, supports the hypothesis of magmatic intrusions on Vesta.

Item URL in elib:https://elib.dlr.de/93883/
Document Type:Article
Title:Compositional evidence of magmatic activity on Vesta
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
De Sanctis, M.C.Istituto Nazionale di Astrofisica, Rome, Italy.UNSPECIFIED
Ammannito, E.INAF, Istituto di Fisica Dello Spazio Interplanetario, Roma, ItalyUNSPECIFIED
Buczkowski, D.L.Johns Hopkins University Applied Physics Laboratory 11100 Johns Hopkins Rd. Laurel, MD 20723-6099, USAUNSPECIFIED
Raymond, C. A.Carol.A.Raymond (at) jpl.nasa.govUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Mittlefehldt, D. W.Astromaterials Research Office, NASA Johnson Space Center, Houston, Texas, USAUNSPECIFIED
Capria, M. T.Instituto di Astrofisica Spaziale e Fisica Cosmica, Roma, ItalyUNSPECIFIED
Frigeri, A.National Institute of Astrophysics, Rome, ItalyUNSPECIFIED
Magni, G.INAF/Instituto di Astrofisica Spaziale e Fisica Cosmica, Rome, ItalyUNSPECIFIED
Tosi, F.INAF-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica, Roma ItalyUNSPECIFIED
Zambon, F.INAF-IAPS, Via del Fosso del Cavaliere 100, I-00133 Rome, ItalyUNSPECIFIED
Russell, C. T.ctrussel (at) igpp.ucla.eduUNSPECIFIED
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1002/2014GL059646
Page Range:pp. 3038-3044
Keywords:volcanism, asteroids, Vesta, protoplanet, solar system origin
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
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Krohn, Dr.rer.nat Katrin
Deposited On:18 Dec 2014 11:37
Last Modified:31 Jul 2019 19:50

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