Mathematics – Logic
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9615599w&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Aug. 25, 1991, p. 15,599-15,616.
Mathematics
Logic
54
Buckling, Geological Faults, Mars Surface, Planetary Crusts, Mars Craters, Regolith, Ridges, Structural Properties (Geology), Tectonics
Scientific paper
The mechanism responsible for the periodic spacing of wrinkle ridges observed on the Tharsis Plateau of Mars is investigated by examining the characteristics of the spacing of ridges in six major provinces on the plateau; these regions were further divided into domains on the basis of ridge orientation. The ridges are interpreted to be folds resulting from buckling, followed by reverse to thrust faulting (flexure-fracture). Several buckling models that may account for the periodic nature of the ridges are analyzed. The model that would account for the periodic spacing and the asymmetric fold geometry of the ridges involves plastic yielding confined to the hinge area, that would result in rapid closing of the fold and, with continued horizontal shortening, the eventual development of reverse to thrust faulting.
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