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Evidence for deep mantle circulation from global tomography

Nature

By:
, ,
DOI: 10.1038/386578a0

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Abstract

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
Number of Pages:
7