DOI: 10.1002/2015GL067155
论文题名: Alignment between seafloor spreading directions and absolute plate motions through time
作者: Williams S.E. ; Flament N. ; Müller R.D.
刊名: Geophysical Research Letters
ISSN: 0094-9327
EISSN: 1944-9058
出版年: 2016
卷: 43, 期: 4 起始页码: 1472
结束页码: 1480
语种: 英语
英文关键词: absolute plate motion
; plate reorganization
; plate tectonics
; seafloor spreading
Scopus关键词: Alignment
; Geodynamics
; Absolute plate motions
; Degree of alignments
; Early Cretaceous
; Geodynamic setting
; Mid-ocean ridges
; Seafloor spreading
; Seismic anisotropy
; Spreading ridge
; Tectonics
; Cretaceous
; mid-ocean ridge
; plate motion
; plate tectonics
; seafloor spreading
; seismic anisotropy
; tectonic plate
; upper mantle
; Atlantic Ocean
; Pacific Ocean
英文摘要: The history of seafloor spreading in the ocean basins provides a detailed record of relative motions between Earth's tectonic plates since Pangea breakup. Determining how tectonic plates have moved relative to the Earth's deep interior is more challenging. Recent studies of contemporary plate motions have demonstrated links between relative plate motion and absolute plate motion (APM), and with seismic anisotropy in the upper mantle. Here we explore the link between spreading directions and APM since the Early Cretaceous. We find a significant alignment between APM and spreading directions at mid-ocean ridges; however, the degree of alignment is influenced by geodynamic setting, and is strongest for mid-Atlantic spreading ridges between plates that are not directly influenced by time-varying slab pull. In the Pacific, significant mismatches between spreading and APM direction may relate to a major plate-mantle reorganization. We conclude that spreading fabric can be used to improve models of APM. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975698663&doi=10.1002%2f2015GL067155&partnerID=40&md5=d92208df79b7bed69472d3caf25f1605
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10290
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: EarthByte, School of Geosciences, University of Sydney, Sydney, NSW, Australia
Recommended Citation:
Williams S.E.,Flament N.,Müller R.D.. Alignment between seafloor spreading directions and absolute plate motions through time[J]. Geophysical Research Letters,2016-01-01,43(4).