globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2017.10.015
Scopus记录号: 2-s2.0-85033581602
论文题名:
Thermal impact of magmatism in subduction zones
作者: Rees Jones D.W.; Katz R.F.; Tian M.; Rudge J.F.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 481
起始页码: 73
结束页码: 79
语种: 英语
英文关键词: magma transport ; subduction zone ; thermal model
Scopus关键词: Heat transfer ; Latent heat ; Continental crusts ; Lithospheric temperatures ; Magma transport ; Subduction zones ; Thermal model ; Thermal transport ; Thermomechanical model ; Two dimensional numerical models ; Tectonics ; advection ; heat flow ; magma chamber ; magma chemistry ; magmatism ; numerical model ; subduction zone ; temperature effect ; thermomechanics ; Calluna vulgaris
英文摘要: Magmatism in subduction zones builds continental crust and causes most of Earth's subaerial volcanism. The production rate and composition of magmas are controlled by the thermal structure of subduction zones. A range of geochemical and heat flow evidence has recently converged to indicate that subduction zones are hotter at lithospheric depths beneath the arc than predicted by canonical thermomechanical models, which neglect magmatism. We show that this discrepancy can be resolved by consideration of the heat transported by magma. In our one- and two-dimensional numerical models and scaling analysis, magmatic transport of sensible and latent heat locally alters the thermal structure of canonical models by ∼300 K, increasing predicted surface heat flow and mid-lithospheric temperatures to observed values. We find the advection of sensible heat to be larger than the deposition of latent heat. Based on these results we conclude that thermal transport by magma migration affects the chemistry and the location of arc volcanoes. © 2017
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110194
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom; Department of Earth Sciences, Bullard Laboratories, University of Cambridge, Madingley Road, Cambridge, CB3 0EZ, United Kingdom

Recommended Citation:
Rees Jones D.W.,Katz R.F.,Tian M.,et al. Thermal impact of magmatism in subduction zones[J]. Earth and Planetary Science Letters,2018-01-01,481
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