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      Detailed seismic velocity of the incoming subducting sediments in the 2004 great Sumatra earthquake rupture zone from full waveform inversion of long offset seismic data : Seismic Velocity of Subducting Sediments

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      Geophysical Research Letters
      Wiley

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          Bending-related faulting and mantle serpentinization at the Middle America trench.

          The dehydration of subducting oceanic crust and upper mantle has been inferred both to promote the partial melting leading to arc magmatism and to induce intraslab intermediate-depth earthquakes, at depths of 50-300 km. Yet there is still no consensus about how slab hydration occurs or where and how much chemically bound water is stored within the crust and mantle of the incoming plate. Here we document that bending-related faulting of the incoming plate at the Middle America trench creates a pervasive tectonic fabric that cuts across the crust, penetrating deep into the mantle. Faulting is active across the entire ocean trench slope, promoting hydration of the cold crust and upper mantle surrounding these deep active faults. The along-strike length and depth of penetration of these faults are also similar to the dimensions of the rupture area of intermediate-depth earthquakes.
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            Inversion of seismic reflection data in the acoustic approximation

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              Thermal structure of oceanic and continental lithosphere

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                Author and article information

                Journal
                Geophysical Research Letters
                Geophys. Res. Lett.
                Wiley
                00948276
                April 16 2017
                April 16 2017
                : 44
                : 7
                : 3090-3099
                Article
                10.1002/2016GL072175
                3d9d26c0-cdbb-42f6-872a-dafa93b1d7e8
                © 2017

                http://doi.wiley.com/10.1002/tdm_license_1

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