• D" Reflection Polarities Inform Lowermost Mantle Mineralogy 

      Thomas, C.ORCIDiD; Cobden, L. J.ORCIDiD; Jonkers, A. R. T. (Geochemistry, Geophysics, Geosystems, 2022-10-04)
      Polarities of seismic reflections at the discontinuity atop the D" region (PdP and SdS) indicate the sign of the velocity contrast across the D" reflector. Recent studies found PdP polarities matching and opposite those ...