| 项目编号: | 1444275
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| 项目名称: | MARGINS: Collaborative Research: Illuminating the Architecture of the Greater Mount St. Helens Magmatic System from Slab to Surface |
| 作者: | Geoffrey Abers
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| 承担单位: | Cornell University
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| 批准年: | 2013
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| 开始日期: | 2014-04-01
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| 结束日期: | 2018-04-30
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| 资助金额: | USD341241
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| 资助来源: | US-NSF
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| 项目类别: | Continuing grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | surface
; mount st. helens
; mount st. helens volcanic edifice
; volcano?s plumbing system
; large collaborative team
; plumbing system
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| 英文摘要: | To better understand volcanic activity, it is fundamental to get an accurate representation of magma generation zones and storage regions in the Earth?s crust and upper mantle. Illuminating the architecture of the plumbing system beneath volcanoes will allow scientists to determine (1) at which depths and conditions magmas are generated, and (2) the shapes and sizes of pathways and reservoirs along which magma travels towards the surface. Such knowledge will allow scientists to make more informed predictions on the durations of volcanic crises and on the total volume of erupted material during eruptive episodes.
This project focuses on the Mount St. Helens volcanic edifice, (WA, USA), whose explosive eruption in 1980 attracted world?s attention, and was the first volcano to be thoroughly monitored with modern instruments. Mount St. Helens provides an ideal setting to apply state-of-the-art geophysical and geochemical techniques to image its subterranean roots: It is active, easily accessible, and has a well recorded past history. The project will use several different methods (active and passive source seismic tomography and scattered wave imaging, magnetotelluric imaging, petrology and geochemistry), involving a large collaborative team, to image the volcano?s plumbing system with unprecedented resolution from the subducting plate to the surface. The results will be informative for many other volcanoes around the world, particularly those located along the infamous Pacific Ring of Fire. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/97186
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Geoffrey Abers. MARGINS: Collaborative Research: Illuminating the Architecture of the Greater Mount St. Helens Magmatic System from Slab to Surface. 2013-01-01.
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