D" Reflection Polarities Inform Lowermost Mantle Mineralogy

Abstract 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 of P and PcP. While anisotropy could explain this behavior, w...

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Bibliographic Details
Main Authors: C. Thomas, L. J. Cobden, A. R. T. Jonkers
Format: Article
Language:English
Published: Wiley 2022-10-01
Series:Geochemistry, Geophysics, Geosystems
Subjects:
Online Access:https://doi.org/10.1029/2021GC010325