Comparing ray-theoretical and finite-frequency teleseismic traveltimes: implications for constraining the ratio of S-wave to P-wave velocity variations in the lower mantle

A number of seismological studies have indicated that the ratio R of S-wave and P-wave velocity perturbations increases to 3–4 in the lower mantle with the highest values in the large low-velocity provinces (LLVPs) beneath Africa and the central Pacific. Traveltime constraints on R are based primari...

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Bibliographic Details
Main Authors: Chaves, CAM, Ritsema, J, Koelemeijer, P
Format: Journal article
Language:English
Published: Oxford University Press 2020