GSTDTAP  > 资源环境科学
DOI10.1038/s41467-018-06357-0
Shallow magma diversions during explosive diatreme-forming eruptions
Le Corvec, Nicolas1; Muirhead, James D.2; White, James D. L.3
2018-04-13
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
出版年2018
卷号9
文章类型Article
语种英语
国家France; USA; New Zealand
英文摘要

The diversion of magma is an important mechanism that may lead to the relocation of a volcanic vent. Magma diversion is known to occur during explosive volcanic eruptions generating subterranean excavation and remobilization of country and volcanic rocks. However, feedbacks between explosive crater formation and intrusion processes have not been considered previously, despite their importance for understanding evolving hazards during volcanic eruptions. Here, we apply numerical modeling to test the impacts of excavation and subsequent infilling of diatreme structures on stress states and intrusion geometries during the formation of maar-diatreme complexes. Explosive excavation and infilling of diatremes affects local stress states which inhibits magma ascent and drives lateral diversion at various depths, which are expected to promote intra-diatreme explosions, host rock mixing, and vent migration. Our models demonstrate novel mechanisms explaining the generation of saucer-shaped sills, linked with magma diversion and enhanced intra-diatreme explosive fragmentation during maar-diatreme volcanism. Similar mechanisms will occur at other volcanic vents producing crater-forming eruptions.


领域资源环境
收录类别SCI-E
WOS记录号WOS:000429921000016
WOS关键词BUTTES VOLCANIC FIELD ; MAAR-DIATREME ; HOPI BUTTES ; PHREATOMAGMATIC VOLCANOS ; PLUMBING SYSTEM ; NAVAJO NATION ; SAN RAFAEL ; TUFF CONE ; PROPAGATION ; SILL
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/204028
专题资源环境科学
作者单位1.Univ Clermont Auvergne, Lab Magmas & Volcans, CNRS, OPGC,IRD, 6 Ave Blaise Pascal, F-63178 Aubiere, France;
2.Syracuse Univ, Dept Earth Sci, Heroy Geol Lab 204, Syracuse, NY 13244 USA;
3.Univ Otago, Dept Geol, POB 56, Dunedin 9054, Otago, New Zealand
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GB/T 7714
Le Corvec, Nicolas,Muirhead, James D.,White, James D. L.. Shallow magma diversions during explosive diatreme-forming eruptions[J]. NATURE COMMUNICATIONS,2018,9.
APA Le Corvec, Nicolas,Muirhead, James D.,&White, James D. L..(2018).Shallow magma diversions during explosive diatreme-forming eruptions.NATURE COMMUNICATIONS,9.
MLA Le Corvec, Nicolas,et al."Shallow magma diversions during explosive diatreme-forming eruptions".NATURE COMMUNICATIONS 9(2018).
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