Geoid anomalies and dynamic topography from convection in cylindrical geometry: applications to mantle plumes on Earth and Venus
نویسندگان
چکیده
منابع مشابه
Global Decoupling of Crust and Mantle: Implications for Topography, Geoid and Mantle Viscosity on Venus
The surface of Venus is so hot that the lower crust may be weak enough to allow decoupling of mantle and crust. An analytic model of such decoupling assumes that the shallow mande forms the top boundary layers of large scale mantle convection cells. Crustal flow is driven by the motion of the marie and by topographically induced pressure gradients. The model predicts that the lowest lowlands ar...
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Introduction: The Venusian geoid, gravity field, and topography have been used in a variety of applications and are the primary sources of information about the internal structure of the planet. We focus on the relationship between the geoid and topography to determine both the support mechanism for the topography and lithospheric density structure. Magnitude of Dynamic Topography: The long-wav...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1992
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1992.tb00850.x