Institut für Geophysik Geschäftsführender Direktor:
Prof. Dr. Ulrich Hansen

Corrensstraße 24 48149 Münster
Tel.: +49 251 83-33590
Fax: +49 251 83-36100

 

Resurfacing events on Venus: Implications on plume dynamics and surface topography

Claudia Stein, André Fahl, Ulrich Hansen

 


 

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. 


Geophys. Res. Lett., 37, L01201, doi:10.1029/2009GL041073

 





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Institut für Geophysik Geschäftsführender Direktor:
Prof. Dr. Ulrich Hansen

Corrensstraße 24
· 48149 Münster
Tel.: +49 251 83-33590 · Fax: +49 251 83-36100
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