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DOI | 10.1002/2017GL073641 |
A viscous-to-brittle transition in eruptions through clay suspensions | |
Schmid, Diana1; Scheu, Bettina1; Wadsworth, Fabian B.1; Kennedy, Ben M.2; Jolly, Arthur3; Dingwell, Donald B.1 | |
2017-05-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; New Zealand |
英文摘要 | Volcanic lakes are often associated with active geothermal circulation, mineral alteration, and precipitation, each of which can complicate the analysis of shallow magma physics, geophysical signals, and chemical signals. The rheology of the lake and associated hydrothermal system affects the eruptive activity as bubbles ascend and burst through the lake producing distinct ejection behavior. We investigate such phenomena by conducting scaled experiments in which heated water-clay suspensions are decompressed rapidly from relevant pressures. After a jet phase of expanding vapor, the suspensions break up into ejecta that are either angular or droplet geometry. We parameterize these regimes and find a universal clay volume fraction of 0.28 below which the ejecta are form droplets and above which the ejecta are angular. We propose a regime diagram for optical observations of active lakes, which allows rheological characterization and informs volcanic monitoring. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131900052 |
WOS关键词 | WHITE ISLAND ; RHEOLOGY ; VOLCANO ; FLOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25716 |
专题 | 气候变化 |
作者单位 | 1.Ludwig Maximilians Univ Munchen, Earth & Environm Sci, Munich, Germany; 2.Univ Canterbury, Geol Sci, Christchurch, New Zealand; 3.GNS Sci, Lower Hutt, New Zealand |
推荐引用方式 GB/T 7714 | Schmid, Diana,Scheu, Bettina,Wadsworth, Fabian B.,et al. A viscous-to-brittle transition in eruptions through clay suspensions[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(10). |
APA | Schmid, Diana,Scheu, Bettina,Wadsworth, Fabian B.,Kennedy, Ben M.,Jolly, Arthur,&Dingwell, Donald B..(2017).A viscous-to-brittle transition in eruptions through clay suspensions.GEOPHYSICAL RESEARCH LETTERS,44(10). |
MLA | Schmid, Diana,et al."A viscous-to-brittle transition in eruptions through clay suspensions".GEOPHYSICAL RESEARCH LETTERS 44.10(2017). |
条目包含的文件 | 条目无相关文件。 |
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