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Bayesian inference for ultralow velocity zones in the Earth's lowermost mantle: complex ULVZ beneath the east of the Philippines

Pachhai, S.; Tkalčić, H.; Dettmer, J.


Ultralow velocity zones (ULVZs) are small-scale structures with a sharp decrease in S and P wave velocity, and an increase in the density on the top of the Earth's core-mantle boundary. The ratio of S and P wave velocity reduction and density anomaly are important to understanding whether ULVZs consist of partial melt or chemically distinct material. However, existing methods such as forward waveform modeling that utilize 1-D and 2-D Earth-structure models face challenges when trying to...[Show more]

CollectionsANU Research Publications
Date published: 2014-11-21
Type: Journal article
Source: Journal of Geophysical Research: Solid Earth
DOI: 10.1002/2014JB011067


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