DOI: 10.1002/2015GL064313
论文题名: A two-way interaction between the Hainan plume and the Manila subduction zone
作者: Mériaux C.A. ; Duarte J.C. ; Schellart W.P. ; Mériaux A.-S.
刊名: Geophysical Research Letters
ISSN: 0094-9417
EISSN: 1944-9148
出版年: 2015
卷: 42, 期: 14 起始页码: 5796
结束页码: 5802
语种: 英语
英文关键词: analogue modeling
; mantle plumes
; subduction
Scopus关键词: Buoyancy
; Thermal plumes
; Analogue modeling
; Laboratory models
; Mantle plume
; Subducting slabs
; Subduction
; Subduction rates
; Subduction zones
; Two-way interaction
; Tectonics
; buoyancy
; laboratory method
; mantle plume
; slab
; subduction zone
; three-dimensional modeling
; tilt
; China
; Hainan
; Manila
; National Capital Region
; Philippines
英文摘要: The interaction between mantle plumes and subducting slabs is well accepted, but the influence of slabs on plumes has more often been portrayed than the reverse. Here we present three-dimensional upper mantle laboratory models in which a compositional plume rises underneath a subducting plate. Slab/plume buoyancy flux ratios ranged between 7 and 18. The models exhibit a two-way interaction. While the plume conduit increasingly tilts away from the trench as a result of slab rollback-induced toroidal mantle flow, the slab subduction rate decreases as a function of the amount of plume buoyancy opposing that of the slab, which gets subducted beneath the slab. We propose that our models apply to the Hainan/Manila system and explain the recently imaged tilt of the Hainan plume by the Manila slab-induced mantle return flow. The Hainan plume could lessen the Manila subduction rate from 8Ma into the future. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938956311&doi=10.1002%2f2015GL064313&partnerID=40&md5=03615bb5585e6dc0586032b32b5b9f8c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9032
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Instituto Dom Luiz, Universidade de Lisboa, Lisbon, Portugal
Recommended Citation:
Mériaux C.A.,Duarte J.C.,Schellart W.P.,et al. A two-way interaction between the Hainan plume and the Manila subduction zone[J]. Geophysical Research Letters,2015-01-01,42(14).