Convection-driven tectonics on Venus

Details Convection-driven tectonics on Venus Convection-driven tectonics on Venus

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.1301p&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Feb. 10, 1990, p. 1301-1316.

Physics

77

Convection, Lithosphere, Tectonics, Venus Surface, Elastic Deformation, Planetary Crusts, Plastic Deformation, Stress Analysis, Viscosity, Venus, Tectonics, Convection, Stress, Lithosphere, Elasticity, Shear, Deformation, Theoretical Studies, Viscosity, Parameters, Density, Flow, Depth, Rheology, Distribution, Topography, Gravity Anomalies, Analysis, Calculations, Displacement

Scientific paper

An analysis is presented of convective stress coupling to an elastic lithosphere as applied to Venus. Theoretical solutions are introduced for the response of a mathematically thick elastic plate overlying a Newtonian viscous medium with an exponential depth dependence of viscosity, and a Green's function solution is obtained for the viscous flow driven by a harmonic density distribution at a specified depth. An elastic-plastic analysis is carried out for the deformation of a model Venus lithosphere. The results predict that dynamic uplift of Venusian topography must be accompanied by extensive brittle failure and viscous flow in the lithosphere.

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