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Ultra-low velocity zones beneath the Philippine and Tasman Seas revealed by a trans-dimensional Bayesian waveform inversion

Pachhai, Surya; Dettmer, Jan; Tkalčić, Hrvoje


Ultra-low velocity zones (ULVZs) are small-scale structures in the Earth's lowermost mantle inferred from the analysis of seismological observations. These structures exhibit a strong decrease in compressional (P)-wave velocity, shear (S)-wave velocity, and an increase in density. Quantifying the elastic properties of ULVZs is crucial for understanding their physical origin, which has been hypothesized either as partial melting, iron enrichment, or a combination of the two. Possible...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Geophysical Journal International
DOI: 10.1093/gji/ggv368
Access Rights: Open Access


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