| DOI: | 10.1002/2014GL061884
|
| 论文题名: | Hot upwelling conduit beneath the Atlas Mountains, Morocco |
| 作者: | Sun D.; Miller M.S.; Holt A.F.; Becker T.W.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-9569
|
| EISSN: | 1944-9300
|
| 出版年: | 2014
|
| 卷: | 41, 期:22 | | 起始页码: | 8037
|
| 结束页码: | 8044
|
| 语种: | 英语
|
| 英文关键词: | Atlas Mountains
; hot upwelling
|
| Scopus关键词: | Geodynamics
; Physical properties
; Seismology
; Waveform analysis
; Alkaline volcanism
; Atlas Mountains
; Broadband deployment
; Geodynamic modeling
; hot upwelling
; Mantle upwellings
; Quaternary volcanisms
; Seismic waveform analysis
; Landforms
; alkalinity
; morphology
; temperature effect
; topography
; upper mantle
; upwelling
; volcanism
; Atlas Mountains
|
| 英文摘要: | The Atlas Mountains of Morocco display high topography, no deep crustal root, and regions of localized Cenozoic alkaline volcanism. Previous seismic imaging and geophysical studies have implied a hot mantle upwelling as the source of the volcanism and high elevation. However, the existence, shape, and physical properties of an associated mantle anomaly are debated. Here we use seismic waveform analysis from a broadband deployment and geodynamic modeling to define the physical properties and morphology of the anomaly. The imaged low-velocity structure extends to ~200 km beneath the Atlas and appears ~350 K hotter than the ambient mantle with possible partial melting. It includes a lateral conduit, which suggests that the Quaternary volcanism arises from the upper mantle. Moreover, the shape and temperature of the imaged anomaly indicate that the unusually high topography of the Atlas Mountains is due to active mantle support. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923332185&doi=10.1002%2f2014GL061884&partnerID=40&md5=cb6c9e567ed3f9490a35ecd05975ac94
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6833
|
| Appears in Collections: | 气候减缓与适应
|
|
There are no files associated with this item.
|
|
作者单位: | Department of Earth Sciences, University of Southern California, Los Angeles, CA, United States
|
| Recommended Citation: | |
Sun D.,Miller M.S.,Holt A.F.,et al. Hot upwelling conduit beneath the Atlas Mountains, Morocco[J]. Geophysical Research Letters,2014-01-01,41(22).
|
|
|