Cluster analysis of global lower mantle tomography : A new class of structure and implications for chemical heterogeneity

@inproceedings{Leki2012ClusterAO,
  title={Cluster analysis of global lower mantle tomography : A new class of structure and implications for chemical heterogeneity},
  author={Vedran Leki{\'c} and Sanne Cottaar and Adam M. Dziewonski and Barbara Romanowicz},
  year={2012}
}
Earth’s lower mantle is dominated by a pair of antipodal large low shear velocity provinces (LLSVPs) that reach 41000 km up from the core–mantle boundary (CMB). These are separated by a ring of faster-than-average velocities thought to be related to subduction of oceanic lithosphere. How robustly does global tomography constrain velocity structure in the lower mantle, and are there other robust seismic characteristics common to a set of recent global tomographic models which have been derived… CONTINUE READING
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