气候变化领域集成服务门户(CCPortal): Tidally Induced Magmatic Pulses on the Oceanic Floor of Jupiter's Moon Europa

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DOI	10.1029/2020GL090077
	Tidally Induced Magmatic Pulses on the Oceanic Floor of Jupiter's Moon Europa
	Běhounková M.; Tobie G.; Choblet G.; Kervazo M.; Melwani Daswani M.; Dumoulin C.; Vance S.D.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:3
英文摘要	The habitability of Europa's subsurface ocean is conditioned by heat released from the deep interior and by intensity of magmatic activity. Here, we investigate the melting of the silicate mantle through time and its consequences for seafloor magmatism by modeling Europa's internal heat production and transfer using a three-dimensional numerical model. We show that melt can be produced during most of Europa's history due to the limited efficiency of internal cooling by thermal convection and the presence of radiogenic heating. The melting rate is amplified by tidal friction, possibly leading to magmatic pulses during enhanced eccentricity periods and focusing melting to high latitudes. The volume of generated melts during magmatic episodes is comparable to those involved in Large Igneous Provinces, commonly observed on Earth, and may impact ocean chemistry. We predict that gravity measurements, detection of anomalous H2/CH4, and astrometric data by future missions could confirm ongoing large-scale seafloor activity. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Heat convection; Silicates; Gravity measurement; Internal cooling; Internal heat production; Large igneous provinces; Magmatic activity; Sub-surface ocean; Thermal convections; Three-dimensional numerical modeling; Melting
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169139
作者单位	Charles University, Faculty of Mathematics and Physics, Department of Geophysics, Prague, Czech Republic; Laboratoire de Planétologie et Géodynamique, UMR-CNRS 6112, Université de Nantes, Nantes, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Běhounková M.,Tobie G.,Choblet G.,et al. Tidally Induced Magmatic Pulses on the Oceanic Floor of Jupiter's Moon Europa[J],2021,48(3).
APA	Běhounková M..,Tobie G..,Choblet G..,Kervazo M..,Melwani Daswani M..,...&Vance S.D..(2021).Tidally Induced Magmatic Pulses on the Oceanic Floor of Jupiter's Moon Europa.Geophysical Research Letters,48(3).
MLA	Běhounková M.,et al."Tidally Induced Magmatic Pulses on the Oceanic Floor of Jupiter's Moon Europa".Geophysical Research Letters 48.3(2021).