Coldspots and hotspots - Global tectonics and mantle dynamics of Venus

Details Coldspots and hotspots - Global tectonics and mantle dynamics of Venus Coldspots and hotspots - Global tectonics and mantle dynamics of Venus

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....9713495b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. E8, Aug. 25, 1992, p. 13,495-13,532.

Mathematics

Logic

128

Planetary Mantles, Surface Temperature, Tectonics, Venus Surface, Magellan Spacecraft (Nasa), Radar Imagery, Radio Altimeters

Scientific paper

Based on geologic observations provided by Magellan's first cycle of data collection and recent models of mantle convection in spherical shells and crustal deformation, the major topographic and geologic features of Venus are incorporated into a model of global mantle dynamics. Consideration is given to volcanic rises, such as Beta Regio and Atla Regio, plateau-shaped highlands dominated by complex ridged terrain (e.g., Ovda Regio and Alpha Regio), and circular lowland regions, such as Atalanta Planitia. Each of these features is related to either mantle plumes (hotspots) or mantle downwellings (coldspots).

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