Mantle plumes, mantle stirring and hotspot chemistry

Details Mantle plumes, mantle stirring and hotspot chemistry Mantle plumes, mantle stirring and hotspot chemistry

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990e%26psl..99...94d&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 99, no. 1-2, July 1990, p. 94-109.

Other

63

Basalt, Earth Mantle, Geochemistry, Geothermal Resources, Lithosphere, Argon Isotopes, Earth Core, Helium Isotopes, Ocean Bottom, Ocean Thermal Energy Conversion, Thermal Boundary Layer, Xenon Isotopes

Scientific paper

The role of plumes in a mantle with single-layer convection and stratified viscosity is studied. The way in which the large-scale flow stirs the mantle is illustrated, and a model is described in which plumes sample regions of the lowermost mantle having properties appropriate to oceanic island basalt sources. All proposed sources of recycled material, including oceanic crust, oceanic sediments, and continental lithosphere, can be accommodated in this model.

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