globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL059646
论文题名:
Compositional evidence of magmatic activity on Vesta
作者: De Sanctis M.C.; Ammannito E.; Buczkowski D.; Raymond C.A.; Jaumann R.; Mittlefehldt D.W.; Capaccioni F.; Capria M.T.; Frigeri A.; Magni G.; Tosi F.; Zambon F.; Russell C.T.
刊名: Geophysical Research Letters
ISSN: 0094-10076
EISSN: 1944-9807
出版年: 2014
卷: 41, 期:9
起始页码: 3038
结束页码: 3044
语种: 英语
英文关键词: asteroids ; protoplanet ; solar system origin ; Vesta ; volcanism
Scopus关键词: Hydraulic structures ; Silicate minerals ; Volcanoes ; Magmatic activity ; Magmatic intrusions ; Morphological properties ; protoplanet ; Tectonic features ; Terrestrial planets ; Vesta ; volcanism ; Asteroids ; asteroid ; basalt ; core (planetary) ; crater ; crust ; diogenite ; eucrite ; howardite ; iron ; magmatism ; solar system ; volcanism
英文摘要: 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. Key Points Evidence of Vesta magmatic activity Vesta dike identification from mineralogical signature Protoplanet evolution © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901934497&doi=10.1002%2f2014GL059646&partnerID=40&md5=1f22bd434c730176240b6c5f637fbea6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7340
Appears in Collections:气候减缓与适应

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作者单位: Istituto di Astrofisica e Planetologia Spaziali, INAF, Rome, Italy

Recommended Citation:
De Sanctis M.C.,Ammannito E.,Buczkowski D.,et al. Compositional evidence of magmatic activity on Vesta[J]. Geophysical Research Letters,2014-01-01,41(9).
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