Evidence for deep mantle circulation from global tomography
Nature
By: R. D. Van Der Hilst, S. Widiyantoro, and E.R. Engdahl
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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.
| 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 |
| Google Analytic Metrics | Metrics page |