| DOI: | 10.1002/2015GL067372
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| 论文题名: | Time scales of crystal mixing in magma mushes |
| 作者: | Schleicher J.M.; Bergantz G.W.; Breidenthal R.E.; Burgisser A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9356
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| EISSN: | 1944-9087
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| 出版年: | 2016
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| 卷: | 43, 期:4 | | 起始页码: | 1543
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| 结束页码: | 1550
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| 语种: | 英语
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| 英文关键词: | DEM
; magma
; mixing
; multiphase
; volcanology
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| Scopus关键词: | Time measurement
; magma
; Magma mixing
; multiphase
; Parameterized
; Particle-fluid interaction
; Rich conditions
; Spatial correlations
; volcanology
; Mixing
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| 英文摘要: | Magma mixing is widely recognized as a means of producing compositional diversity and preconditioning magmas for eruption. However, the processes and associated time scales that produce the commonly observed expressions of magma mixing are poorly understood, especially under crystal-rich conditions. Here we introduce and exemplify a parameterized method to predict the characteristic mixing time of crystals in a crystal-rich magma mush that is subject to open-system reintrusion events. Our approach includes novel numerical simulations that resolve multiphase particle-fluid interactions. It also quantifies the crystal mixing by calculating both the local and system-wide progressive loss of the spatial correlation of individual crystals throughout the mixing region. Both inertial and viscous time scales for bulk mixing are introduced. Estimated mixing times are compared to natural examples and the time for basaltic mush systems to become well mixed can be on the order of 10 days. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959432176&doi=10.1002%2f2015GL067372&partnerID=40&md5=34532088a6ada6f5319ca95bf3c966d0
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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/10319
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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 Earth and Space Sciences, University of Washington, Seattle, WA, United States
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| Recommended Citation: | |
Schleicher J.M.,Bergantz G.W.,Breidenthal R.E.,et al. Time scales of crystal mixing in magma mushes[J]. Geophysical Research Letters,2016-01-01,43(4).
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