Seismic imaging of magma chamber beneath an active volcano
Seismic imaging of magma chamber beneath an active volcano
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DOI：
10.1016/j.epsl.2012.03.034
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发表时间：
2012-06
影响因子：
5.3
通讯作者：
Yutaka Nagaoka;Kiwamu Nishida;Y. Aoki;M. Takeo;T. Ohminato
中科院分区：
文献类型：
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作者：
Yutaka Nagaoka;Kiwamu Nishida;Y. Aoki;M. Takeo;T. Ohminato
虽然活火山下岩浆房的位置和形状在了解岩浆运输和预测火山活动方面发挥着关键作用，但岩浆房的性质，特别是它们的形状，尚未完全了解。在这里，我们发现了一个低速体太小，无法通过称为地震干涉测量的现代技术的帮助下，从传统技术检测。结合我们的结果和独立的观察表明，低速体可能代表一个岩浆房。我们的研究结果表明，地震干涉成像的小规模功能的大小小于10公里的实用程序。
While the location and shape of magma chambers beneath active volcanoes play a key role in understanding magma transport and forecasting volcanic activity, the nature of magma chambers, particularly their shape, is not fully understood. Here we found a low velocity body too small to be detected from conventional techniques by the aid of a modern technique called seismic interferometry. Combining our result with independent observations suggests that the low velocity body is likely to represent a magma chamber. Our findings demonstrate the utility of seismic interferometry in imaging a small scale feature with a size of less than 10km.