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Showing 1 to 8 of 8 for “"Fold-thrust belts"”.
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Modelling Viscous Flow and Elastic Deformation in Fold-Thrust Belts and Magmatic Intrusions
… two geophysical processes: the formation of fold-thrust belts and the dynamics of shallow magmatic intrusions. Although geophysically distinct, these two problems both involve the interplay between viscous flow and elastic deformation and so inform the modelling of one another. Fold-thrust …
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Models of Continental Fold-Thrust Belt Salients
… (3) margin-controlled salients, which form where fold-thrust belts mold to the preexisting irregular shape of the margin; and (4) detachment-controlled salients, which form due to variations in the lateral continuity of weak glide horizons. From this work, it is clear that structural trendline …
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Aspects of deformation in a fold-thrust belt: veins and backstop evolution
Fold-thrust belts are common manifestations of crustal shortening at convergent and collisional plate boundaries. They contain a variety of geologic structures that develop over a wide range of length scales. This dissertation focuses on two specific aspects of fold-thrust belts: the veins that …
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Three-dimensional kinematics and geometries of thrust-related folds
… geometries associated with the development of thrust-related folds. First, the complex relationship between fold geometry and along-strike changes in fault displacement and fault shape was considered by extending equations describing conventional two-dimensional folding models into the third …
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Contractional tectonics : the Himalayan orogen and Perdido fold-thrust belt
… of contractional tectonics: collisional orogenic belts and toe structures of passive margins, which are characterized by fold-thrust belts that are hundreds of kilometer-scale and tens of kilometer-scale, respectively. The Himalayan orogen is an excellent example of collisional orogenic belts …
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Structural Characteristics and Tectonic Evolution of the Pirineus Syntaxis, Central Brazil
… the curve represents the overlap of two distinct fold-thrust belts. The southern limb of syntaxis consists of an east-verging fold-thrust belt in which spoon-shaped thrust sheets, bordered by lateral ramps, are arrayed in an imbricate fan. These thrust sheets consist of continental-margin strata …
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Moletrack scarps to mountains: Quaternary tectonics of the central Alaska Range
… of the Alaska Range defines zones of Quaternary thrust faulting recorded in the progressive deformation of Pleistocene fluvial terraces. I use topographic profiles of these terraces and paleoseismic trenching of fault scarps to characterize the Quaternary activity and constrain the subsurface …