Tectonics and Evolution of Coronae on Venus: Preliminary Results of Tectonophysical Modeling

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Scientific paper

The formation of annular features on Venus, the so-called coronae, is modeled. It is common practice to associate their formation with the uplift and relaxation of hot mantle diapirs. We managed to partially reproduce the topography and structural pattern of the initial stage of corona evolution, a radially fractured dome, by lifting and lowering a piston under a layer of sand with consistent oil or moist clay. We failed to model a dense radial fracturing, which is typical of the earliest stage of corona evolution. We were able to reproduce the necessary attribute of coronae, concentric structures, which are commonly assumed to be formed at the stage of dome relaxation. Their formation mechanism in our experiments can serve only as a partial analog of the processes that produce corona rims. There is an obvious need to use more accurate models. Nevertheless, our modeling shows that the brittle deformations manifest themselves more clearly than do the plastic ones in the formation of dome-shaped uplift during the generation of natural coronae. The modeling also shows that the pattern of deformation within the dome-shaped uplift depends to some extent on the relationship between the layer thickness and the cross-sectional piston sizes. The latter can be a model for the relationship between the lithosphere thickness and the cross-sectional sizes of the mantle diapir that form a corona.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Tectonics and Evolution of Coronae on Venus: Preliminary Results of Tectonophysical Modeling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tectonics and Evolution of Coronae on Venus: Preliminary Results of Tectonophysical Modeling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tectonics and Evolution of Coronae on Venus: Preliminary Results of Tectonophysical Modeling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1094770

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.