Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pepi...34..232a&link_type=abstract
Physics of the Earth and Planetary Interiors (ISSN 0031-9201), vol. 34, Sept. 1984, p. 232-250.
Physics
48
Convective Heat Transfer, Planetary Evolution, Planetary Temperature, Venus (Planet), Heat Flux, Planetary Cores, Planetary Mantles, Planetary Surfaces, Planetology, Temperature Distribution, Venus, Thermal Properties, Evolution, Amplitude, Convection, Viscosity, Temperature, Parameters, Pressure, Thermal Effects, Hypotheses, Models, Physical Properties, History, Mantle, Heat, Surface, Decay, Cores, Formation, Cooling, Gradients, Boundary Layers, Thickness, Crusts, Tectonism, Melting, Plates, Volcanism, Hot
Scientific paper
A modification of the Boussinesq fluid assumption is the basis of the present theory of three-dimensional and finite amplitude convection in a viscous spherical shell with temperature- and pressure-dependent physical parameters. The theory is applied to the definition of thermal evolution models for Venus which emphasize the effects of certain physical parameters on thermal evolution, rather than the specific thermal history of the planet. It is suggested that a significant portion of the present temperature in the mantle and surface heat flux of Venus is due to the decay of a high temperature that was established in the planet at the completion of its core formation, and that Venus has been highly convective over the course of its history, until about 0.5 Ga ago.
Arkani-Hamed Jafar
Toksöz Nafi. M.
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