Physics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17.1393s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 17, Aug. 1990, p. 1393-1396.
Physics
41
Heat Transfer, Lithosphere, Planetary Structure, Radar Imagery, Temperature Gradients, Venus Surface, Mountains, Olivine, Orography, Planetary Evolution, Plateaus, Topography, Venera Satellites, Volcanoes
Scientific paper
Analysis of Venera 15 and 16 radar images and topographic data from the Freyja Montes region on Venus suggests that this mountain belt formed as a result of a sequence of underthrusts of the lithosphere of the North Polar Plains beneath the highlands of Ishtar Terra. The lithospheric flexure hypothesis is tested, and the effective thickness Te of the elastic lithosphere of the underthrusting portion of the North Polar Plains is estimated by fitting individual topographic profiles to deflection curves for a broken elastic plate. The theoretical curves fit the observed topographic profiles to within measurement error for values of flexural rigidity D in the range (0.8-3) x 10 to the 22nd N m, equivalent to Te in the range 11-18 km.
Head James W.
Solomon Sean C.
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