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Imaging the dynamics of magma propagation using radiated seismic intensity.

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Imaging the dynamics of magma propagation using radiated seismic intensity.

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Title: Imaging the dynamics of magma propagation using radiated seismic intensity.
Author: Taisne, B.; Brenguier, F.; Shapiro, N. M.; Ferrazzini, V.
Copyright year: 2011
Abstract: At shallow depth beneath the Earth's surface, magma propagates through strongly heterogeneous volcanic material. Inversion of buoyancy and/or solidification have strong impacts on the dynamics of propagation without any change of magma supply. In this paper, we study the spatial and time evolution of magma intrusions using induced seismicity. We propose a new method based on ratio analysis of estimates of radiated seismic intensities recorded at different stations during seismic swarms. By applying this method to the January 2010 Piton de la Fournaise volcano eruption, we image complex dike propagation dynamics which strongly differ from a model of constant velocity dike propagation. We provide a new method to image in real time the dynamics of dike propagation and to infer the position of eruptive fissures
Subject: DRNTU::Science::Geology.
Type: Journal Article
Series/ Journal Title: Geophysical research letters
Rights: © 2011 American Geophysical Union. This paper was published in Geophysical Research Letters and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at DOI: [http://dx.doi.org/10.1029/2010GL046068].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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