Mathematics – Logic
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...38..456w&link_type=abstract
Icarus, vol. 38, June 1979, p. 456-472. NASA-supported research.
Mathematics
Logic
62
Crustal Fractures, Geological Faults, Mars Craters, Planetary Evolution, Planetology, Tectonics, Convective Heat Transfer, Deformation, Mars Surface, Planetary Structure, Structural Strain, Topography, Volcanology, Tharsis, Montes, Mars, Crust, Evolution, Surface, Martian, Models, Topography, Faults, Volcanism, Deformation, Anisotropy, History, Crater Density, Craters
Scientific paper
Tharsis development apparently involved two stages: (1) an initial rapid topographic rise accompanied by the development of a vast radial fault system and (2) an extremely long-lived volcanic stage apparently continuing to the geological present. A deformation model is proposed in which a first-order mantle convection cell caused early subcrustal erosion and foundering of the low third of the planet. Underplating and deep intrusion by the eroded materials beneath Tharsis caused isostatic doming. Minor radial gravity motions of surficial layers off the dome produced the radial fault system. The hot underplate eventually affected the surface to cause the very long-lived volcanic second stage.
Golombek Matthew P.
McGill George E.
Wise D. U.
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