Coronae on Venus: Relief Features and Stages of Evolution

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Abstract

The coronae on Venus are large (several thousand kilometers in diameter) oval-shaped landforms. Probably, they are the surface manifestations of mantle diapirs. Weak erosion is practically unable to even out the relief of the surface of the planet. So, the specific features of the corona relief make it possible to reconstruct the sequence of evolutional stages of the diapirs. We have studied the topographic configuration of the coronae, determined their relative age, and found that they are characterized by three main topographical classes (landforms). These classes correspond to different stages of their formation and evolution of the parent diapirs.

About the authors

E. N Guseva

Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences

Email: guseva-evgeniya@yandex.ru
Moscow, Russia

M. A Ivanov

Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences

Email: mikhail_ivanov@brown.edu
Moscow, Russia

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