| DOI: | 10.1002/2015GL067131
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| 论文题名: | The role of a mantle plume in the formation of Yellowstone volcanism |
| 作者: | Leonard T.; Liu L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9424
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| EISSN: | 1944-9155
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| 出版年: | 2016
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| 卷: | 43, 期:3 | | 起始页码: | 1132
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| 结束页码: | 1139
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| 语种: | 英语
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| 英文关键词: | Columbia River flood basalt
; Farallon subduction
; mantle plume
; seismic tomography
; slab-plume interaction
; Yellowstone hot spot
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| Scopus关键词: | Basalt
; Seismology
; Tomography
; Columbia river flood basalts
; Farallon subduction
; Hot spot
; Mantle plume
; Plume interaction
; Seismic tomography
; Thermal plumes
; data assimilation
; flood basalt
; hot spot
; mantle plume
; mantle upwelling
; numerical model
; seismic tomography
; slab
; subduction
; volcanism
; Columbia River
; United States
|
| 英文摘要: | The origin of the Yellowstone volcanic province remains debated. Proposed hypotheses involve either a mantle plume or not. Recent tomographic images allow a quantitative evaluation of the plume hypothesis and its interaction with the Farallon slabs. Using 4-D geodynamic models with data assimilation, we find that the slab is always in the way of the initially rising plume and that the plume could reach the surface only through the broken slab hinge at ∼15 Ma. For most of the time, the sinking slabs dominate the mantle flow and prohibit upwelling. We find that a plume that satisfies the present mantle image beneath Yellowstone fails to predict both voluminous hot materials at shallow depths beneath the western U.S. and the age migration of the hot spot tracks. We suggest that a plume is likely to have much less influence on the Yellowstone volcanism than previously thought. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975746090&doi=10.1002%2f2015GL067131&partnerID=40&md5=7ac0f403b3b8c6eef699c055abc24773
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10387
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| 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: | Department of Geology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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| Recommended Citation: | |
Leonard T.,Liu L.. The role of a mantle plume in the formation of Yellowstone volcanism[J]. Geophysical Research Letters,2016-01-01,43(3).
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