Thermal effects of variable material properties and metamorphic reactions in a three-component subducting slab
نویسندگان
چکیده
منابع مشابه
Thermal Structure and Metamorphic Evolution of Subducting Slabs
Subducting lithospheric plates are the cool, downwelling limbs of mantle convection and the negative buoyancy of subducting slabs (slab pull) drives plate tectonics [Forsyth and Uyeda, 1975]. Subduction zones are regions of intense earthquake activity, explosive volcanism, and complex mass transfer between the crust, mantle, hydrosphere, and atmosphere. In this contribution, I present subductio...
متن کاملMelt Evolution above a Spontaneously Retreating Subducting Slab in a Three-Dimensional Model
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 threedimensional (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 ...
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Tensor-guided fitting of subducting slab depths
Earthquakes and active-source seismic surveys provide estimates of depths of subducting slabs, but only at scattered locations. Constructing a useful 3D model of slab geometry involves fitting the depth estimates with a uniformly sampled function of space. The method used to fit the data should account for the curvature of the earth’s surface as well as data uncertainties. In addition to estima...
متن کاملTensor-guided interpolation of subducting slab depths
Earthquakes and seismic surveys provide estimates of depths of subducting slabs, but only at scattered locations. To construct a useful three dimensional model of slab geometry we must interpolate slab depths at uniformly sampled locations on the earth’s surface, and the interpolation method should account for the curvature of that surface. In addition to estimates of depths from earthquake loc...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2015
ISSN: 2169-9313
DOI: 10.1002/2015jb012080