Physics
Scientific paper
Jun 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992geoji.109..481k&link_type=abstract
Geophysical Journal International (ISSN 0956-540X), vol. 109, no. 3, June 1992, p. 481-487. Research supported by Green Foundati
Physics
54
Earth Mantle, Free Convection, Mathematical Models, Plates (Tectonics), Tectonics, Geodynamics, Parameterization, Rheology, Scaling Laws
Scientific paper
Recent numerical studies of convection in the earth's mantle have included various features of plate tectonics. This paper describes three methods of modeling plates: through material properties, through force balance, and through a thin power-law sheet approximation. The results obtained are compared using each method on a series of simple calculations. From these results, scaling relations between the different parameterizations are developed. While each method produces different degrees of deformation within the surface plate, the surface heat flux and average plate velocity agree to within a few percent. The main results are not dependent upon the plate modeling method and herefore are representative of the physical system modeled.
Gable Carl W.
King Scott D.
Weinstein Stuart A.
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