Plate motions, the driving mechanism, and the geopotential

Details Plate motions, the driving mechanism, and the geopotential Plate motions, the driving mechanism, and the geopotential

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984angeo...2..333s&link_type=abstract

Annales Geophysicae (ISSN 0755-0685), vol. 2, May-June 1984, p. 333-342. Sponsorship: Deutsche Forschungsgemeinschaft.

Other

Continental Drift, Earth Planetary Structure, Geopotential, Plates (Tectonics), Topography, Convective Flow, Earth Mantle, Geoids, Ocean Bottom, Planetary Evolution, Subduction (Geology)

Scientific paper

A two mode model is developed for transient mantle convection and plate movement. Geoid high points are associated with regions of vigorous oceanic-plate subduction in the western Pacific on one side of the earth and dispersed Pangea on the other. Convective forces are hypothesized to occur in both modes simultaneously. Slow, mantle-wide currents power the dispersal while thermally induced density contours power the oceanic plate subduction. It is predicted that the two modes will reverse sides of the planet in 100 million yr.

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