Melt Evolution above a Spontaneously Retreating Subducting Slab in a Three-Dimensional Model |
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| Authors: | Guizhi Zhu |
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| Affiliation: | Guizhi Zhu* Department of Earth Sciences,Swiss Federal Institute of Technology(ETH Zurich),CH-8092 Zurich,Switzerland Taras Gerya Department of Earth Sciences,Switzerland,Adjunct Professor of Geology Department,Moscow State University,119899 Moscow,Russia David A Yuen Department of Geology and Geophysics and Minnesota Supercomputing Institute,University of Minnesota,Minneapolis,MN 55415,USA |
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| Abstract: | Dehydration of the subducting slab favors the melting of the surrounding mantle.Water content and melt evolution atop a spontaneously retreating subducting slab are reported in a three-dimensional(3-D) model.We find that fluids,including water and melts in the rocks,vary substantially along the trench,which cannot be found in two-dimensional(2-D) models.Their maxima along the subducting slab are mainly located at about 50 to 70 and 120 to 140 km.Volumetric melt production rate changes spatially and episodic... |
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| Keywords: | subduction water and melt three-dimensional model. |
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