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DOI | 10.1002/2017GL074845 |
Oscillatory rheology measurements of particle- and bubble-bearing fluids: Solid-like behavior of a crystal-rich basaltic magma | |
Namiki, Atsuko; Tanaka, Yukie | |
2017-09-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The rheology of crystal- and bubble-bearing magmas governs the propagation of seismic waves as well as eruption dynamics. Here rheology" includes viscous and elastic components and their ratio known as attenuation. We perform an oscillatory rheology measurements, which provide storage (elastic component) and loss (viscous component) moduli, and attenuation, with frequency dependence, using particle- and bubble-bearing fluids whose liquid viscosity is in the range of that of a basaltic melt. We find that both the storage and loss moduli dramatically increase with the particle fraction but weakly depend on the bubble fraction. Solid-like behavior, equivalent to attenuation < 1, appears in the high particle fraction regime phi(p)>40vol%. The shallow conduit of Stromboli volcano, filled by a crystal-rich and low viscosity basaltic magma, may be an example, where shear waves propagate and brittle fractures occur to cause explosive eruptions because of its high crystallinity. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411702400015 |
WOS关键词 | NON-NEWTONIAN RHEOLOGY ; STROMBOLI-VOLCANO ; SURFACE-TENSION ; SILICATE MELTS ; VESICULAR RHYOLITE ; AEOLIAN ISLANDS ; SHEAR-FLOW ; TRANSITION ; SUSPENSIONS ; VISCOSITY |
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/26682 |
专题 | 气候变化 |
作者单位 | Hiroshima Univ, Grad Sch Integrated Arts & Sci, Hiroshima, Japan |
推荐引用方式 GB/T 7714 | Namiki, Atsuko,Tanaka, Yukie. Oscillatory rheology measurements of particle- and bubble-bearing fluids: Solid-like behavior of a crystal-rich basaltic magma[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(17). |
APA | Namiki, Atsuko,&Tanaka, Yukie.(2017).Oscillatory rheology measurements of particle- and bubble-bearing fluids: Solid-like behavior of a crystal-rich basaltic magma.GEOPHYSICAL RESEARCH LETTERS,44(17). |
MLA | Namiki, Atsuko,et al."Oscillatory rheology measurements of particle- and bubble-bearing fluids: Solid-like behavior of a crystal-rich basaltic magma".GEOPHYSICAL RESEARCH LETTERS 44.17(2017). |
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