Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1105p&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 105.
Physics
2
Venus Surface, Planetary Evolution, Tectonics, Volcanoes, Planetary Geology, Surface Temperature, Rheology, Data Bases, Crustal Fractures, Magma
Scientific paper
The tectonic and magmatic evolution of Venus can be understood if there was a switch in convective style from a mobile lid to a sluggish lid regime. Because of a high surface temperature and thin lithospheric lid, massive amounts of partial melt can be generated from mantle upwellings in the mobile lid regime. We suggest that volcanic rises and crustal (highland) plateaus are both formed by rising mantle plumes but at distinctly different times in Venus history. Tesserae and crustal plateaus formed in the mobile lid regime; volcanic rises form in the sluggish lid regime. We suggest that the switch from mobile to sluggish lid convection caused rapid thickening of the thermal lithosphere, which in turn shut off partial melting. Subsequent reheating of the interior eventually led to modest partial melting and the emplacement of volcanic plains over an interval of about 0.5 Ga, commencing at about 1 Ga.
Hansen Vicki L.
Phillips Roger J.
No associations
LandOfFree
Venus now and then 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 Venus now and then, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Venus now and then will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-873811