DOI: 10.1002/2016GL068827
论文题名: Global correlation of lower mantle structure and past subduction
作者: Domeier M. ; Doubrovine P.V. ; Torsvik T.H. ; Spakman W. ; Bull A.L.
刊名: Geophysical Research Letters
ISSN: 0094-9687
EISSN: 1944-9418
出版年: 2016
卷: 43, 期: 10 起始页码: 4945
结束页码: 4953
语种: 英语
英文关键词: geodynamics
; paleogeography
; plate tectonics
; seismic tomography
; subduction
Scopus关键词: Geodynamics
; Plates (structural components)
; Seismographs
; Seismology
; Shear waves
; Structural geology
; Wave propagation
; Global correlation
; Lower mantle
; Paleogeography
; Reference frame
; S-wave velocity
; Seismic tomography
; subduction
; Subduction zones
; Tectonics
; geodynamics
; lithosphere
; lithospheric structure
; mantle structure
; paleogeography
; plate tectonics
; S-wave
; seismic tomography
; subduction
; subduction zone
; wave velocity
英文摘要: Advances in global seismic tomography have increasingly motivated identification of subducted lithosphere in Earth's deep mantle, creating novel opportunities to link plate tectonics and mantle evolution. Chief among those is the quest for a robust subduction reference frame, wherein the mantle assemblage of subducted lithosphere is used to reconstruct past surface tectonics in an absolute framework anchored in the deep Earth. However, the associations heretofore drawn between lower mantle structure and past subduction have been qualitative and conflicting, so the very assumption of a correlation has yet to be quantitatively corroborated. Here we show that a significant, time-depth progressive correlation can be drawn between reconstructed subduction zones of the last 130 Myr and positive S wave velocity anomalies at 600–2300 km depth, but that further correlation between greater times and depths is not presently demonstrable. This correlation suggests that lower mantle slab sinking rates average between 1.1 and 1.9 cm yr−1. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978827291&doi=10.1002%2f2016GL068827&partnerID=40&md5=71cf674d81f2b3acc0a3eb3fd49595e7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10650
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: Centre for Earth Evolution and Dynamics, University of Oslo, Oslo, Norway
Recommended Citation:
Domeier M.,Doubrovine P.V.,Torsvik T.H.,et al. Global correlation of lower mantle structure and past subduction[J]. Geophysical Research Letters,2016-01-01,43(10).