Published July 2008
| public
Journal Article
The eclogite engine; Top-down geochemistry
- Creators
- Anderson, Don L.
Abstract
Properties of Bullen's Region C (400-1000 km) are used to test mantle stratification models (whole-mantle, two-layer, superplume, marble-cake, hole-in-the-floor, water-filter). Top-down models involving eclogite and continent recycling plus irreversible deep subduction [1, 2] are favored. Density-velocity correlations, transition zone (TZ) thickness and petrology imply radial and lateral changes in lithology and homologous temperature. Injection of warm lower crust into the mantle [3] explains the volume, and compositions, of hotspot magmatism. Massive crustal delamination has previously been ignored in favor of plume injections of ancient MORB.
Additional Information
© 2008 Published by Elsevier Ltd. Available online 14 June 2008.Additional details
- Eprint ID
- 55507
- DOI
- 10.1016/j.gca.2008.05.004
- Resolver ID
- CaltechAUTHORS:20150304-100942527
- Created
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2015-03-04Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field