PMID: 9525864Apr 16, 1998Paper

Time scales and heterogeneous structure in geodynamic earth models

Science
Hans-Peter BungeBarbara Romanowicz

Abstract

Computer models of mantle convection constrained by the history of Cenozoic and Mesozoic plate motions explain some deep-mantle structural heterogeneity imaged by seismic tomography, especially those related to subduction. They also reveal a 150-million-year time scale for generating thermal heterogeneity in the mantle, comparable to the record of plate motion reconstructions, so that the problem of unknown initial conditions can be overcome. The pattern of lowermost mantle structure at the core-mantle boundary is controlled by subduction history, although seismic tomography reveals intense large-scale hot (low-velocity) upwelling features not explicitly predicted by the models.

References


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Citations

Oct 21, 2005·Nature·Allen K McNamara, Shijie Zhong
Oct 12, 2005·Proceedings of the National Academy of Sciences of the United States of America·D HelmbergerM Gurnis
Jan 18, 2017·Nature Communications·N FlamentD J Bower
Dec 4, 2002·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Hans-Peter BungeJ R Baumgardner
Dec 4, 2002·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Nicolas Coltice, Yanick Ricard
Dec 4, 2002·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Steven P Grand
Jan 4, 2019·Proceedings. Mathematical, Physical, and Engineering Sciences·S Ghelichkhan, H-P Bunge
Jun 4, 2008·Physical Review Letters·Stefano MazzoniAlberto Vailati
Nov 24, 2020·Proceedings. Mathematical, Physical, and Engineering Sciences·Jorge Nicolas HayekYulia Vibe

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