Evidence for deep mantle circulation from global tomography

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Seismic tomography based on P-wave travel times and improved earthquake locations provides further evidence for mantle-wide convective flow. The use of body waves makes it possible to resolve long, narrow structures in the lower mantle some of which can be followed to sites of present-day plate oonvergence at the Earth's surface. The transition from subduction-related linear structures in the mid-mantle to long-wavelength hetorogeneity near the core-mantle boundary remains enigmatic, but at least some slab segments seem to sink to the bottom of the mantle.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Evidence for deep mantle circulation from global tomography
Series title Nature
DOI 10.1038/386578a0
Volume 386
Issue 6625
Year Published 1997
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Nature
First page 578
Last page 584