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Rapid onset of mafic magmatism facilitated by volcanic edifice collapse

文献类型：期刊论文

作者Cassidy, M.1,2; Watt, S. F. L.1,3; Talling, P. J.4; Palmer, M. R.1; Edmonds, M.5; Jutzeler, M.4; Wall-Palmer, D.6; Manga, M.7; Coussens, M.4; Gernon, T.1
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2015-06-28
卷号42期号:12页码:4778-4785
关键词Sector Collapse Clinopyroxene Petrology Magma Ascent
DOI10.1002/2015GL064519
文献子类Article
英文摘要Volcanic edifice collapses generate some of Earth's largest landslides. How such unloading affects the magma storage systems is important for both hazard assessment and for determining long-term controls on volcano growth and decay. Here we present a detailed stratigraphic and petrological analyses of volcanic landslide and eruption deposits offshore Montserrat, in a subduction zone setting, sampled during Integrated Ocean Drilling Program Expedition 340. A large (6-10km(3)) collapse of the Soufriere Hills Volcano at similar to 130ka was followed by explosive basaltic volcanism and the formation of a new basaltic volcanic center, the South Soufriere Hills, estimated to have initiated <100years after collapse. This basaltic volcanism was a sharp departure from the andesitic volcanism that characterized Soufriere Hills' activity before the collapse. Mineral-melt thermobarometry demonstrates that the basaltic magma's transit through the crust was rapid and from midcrustal depths. We suggest that this rapid ascent was promoted by unloading following collapse.
WOS关键词SOUFRIERE HILLS VOLCANO ; LESSER ANTILLES ; AMPHIBOLE SPONGE ; FLANK-COLLAPSE ; ARC CRUST ; MONTSERRAT ; EVOLUTION ; ERUPTION ; CONSEQUENCES ; CHAMBERS
WOS研究方向Geology
语种英语
WOS记录号WOS:000358002500017
资助机构NERC(NE/K000403/1) ; NERC(NE/K000403/1) ; Alexander Von Humboldt fellowship ; Alexander Von Humboldt fellowship ; (NE/K002724/1) ; (NE/K002724/1) ; NERC(NE/K000403/1) ; NERC(NE/K000403/1) ; Alexander Von Humboldt fellowship ; Alexander Von Humboldt fellowship ; (NE/K002724/1) ; (NE/K002724/1)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62323]  
专题地质与地球物理研究所_其他部门
作者单位1.Univ Southampton, Ocean & Earth Sci, Southampton, Hants, England
2.Johannes Gutenberg Univ Mainz, Inst Geosci, D-55122 Mainz, Germany
3.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, W Midlands, England
4.Natl Oceanog Ctr, Marine Geosci, Southampton, Hants, England
5.Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
6.Univ Plymouth, Sch Geog Earth & Environm Sci, Plymouth PL4 8AA, Devon, England
7.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA
8.Tech Univ Bergakad Freiberg, Inst Geol & Palaontol, D-09596 Freiberg, Germany
9.CNRS, Sorbonne Paris Cite, UMR 7154, Equipe Geol Syst Volcan,Inst Phys Globe Paris, Paris, France
10.Geol Survey Japan AIST, Tsukuba, Ibaraki, Japan
推荐引用方式
GB/T 7714		 Cassidy, M.,Watt, S. F. L.,Talling, P. J.,et al. Rapid onset of mafic magmatism facilitated by volcanic edifice collapse[J]. GEOPHYSICAL RESEARCH LETTERS,2015,42(12):4778-4785.
APA Cassidy, M..,Watt, S. F. L..,Talling, P. J..,Palmer, M. R..,Edmonds, M..,...&Wang, F..(2015).Rapid onset of mafic magmatism facilitated by volcanic edifice collapse.GEOPHYSICAL RESEARCH LETTERS,42(12),4778-4785.
MLA Cassidy, M.,et al."Rapid onset of mafic magmatism facilitated by volcanic edifice collapse".GEOPHYSICAL RESEARCH LETTERS 42.12(2015):4778-4785.

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来源：地质与地球物理研究所

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