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Advances in Seismic Imaging of Earth’s Mantle and Core and Implications for Convective Processes

Global, regional and local scale seismic array data and improved imaging methods are providing increasingly detailed constraints on the heterogeneous structure of Earth’s mantle and core. Heterogeneity is documented by seismic properties such as isotropic wave speeds, anisotropy, attenuation, scattering and the topography, polarity and sharpness of reflective interfaces. These seismic results have implications for how the convection systems in the two largest layers of the Earth operate and potentially interact. We seek contributions that advance knowledge of the internal properties and boundaries of distinctive sub-layers ranging from the lithosphere to the inner core. Studies that use new seismic imaging results to test hypotheses related to thermal and compositional boundary layers, phase transitions, compositional mixing, the role of fluids and active deformation are especially encouraged.

Conveners
Alan Levander, Rice University (alan@rice.edu); Fenglin Niu, Rice University (niu@rice.edu); Peter Shearer, University of California, San Diego (pshearer@ucsd.edu); Brandon Schmandt, University of New Mexico (bschmandt@unm.edu)
 

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