Resurfacing events on Venus: Implications on plume dynamics and surface topography
2010
[1] Global resurfacing events explain the relatively young and uniformly aged surface of Venus. In numerical models featuring these events a variety of plume classes occur ranging from strong, stable to smaller, wind-driven upwellings. We investigate this plume dynamics in a 3D Cartesian geometry paying special attention to the surface topography. While the stable upwellings of the stagnant-lid phase correlate with an elevation of the surface, the wind-driven upwellings of the resurfacing phase do not necessarily correlate with a positive topography signal. We rather observe that a thick plate can dominate the topography above upwellings.
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