Fortuna Tessera, Venus - Evidence of horizontal convergence and crustal thickening

Details Fortuna Tessera, Venus - Evidence of horizontal convergence and crustal thickening Fortuna Tessera, Venus - Evidence of horizontal convergence and crustal thickening

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..699v&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, July 1989, p. 699-702.

Mathematics

Logic

22

Venus, Fortuna Tessera, Crust, Thickness, Photographs, Structure, Origin, Tectonics, Patterns, Deformation, Morphology, Topography, Compression, Tesserae, Maps, Formation, Evolution, Diagrams, Description, Ridges

Scientific paper

Structural and tectonic patterns mapped in Fortuna Tessera are interpreted to reflect a change in the style and intensity of deformation from east to west, beginning with simple tessera terrain at relatively low topographic elevations in the east and progressing through increasingly complex deformation patterns and higher topography to Maxwell Montes in the West. These morphologic and topographic patterns are consistent with east-to-west convergence and compression and the increasing elevations are interpreted to be due to crustal thickening processes associated with the convergent deformational environment. Using an Airy isostatic model, crustal thicknesses of approximately 35 km for the initial tessera terrain, and crustal thicknesses of over 100 km for the Maxwell Montes region are predicted. Detailed mapping with Magellan data will permit the deconvolution of individual components and structures in this terrain.

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