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Showing 1 to 11 of 11 for “"Orogenic Wedge"”.
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A Thermochronological Investigation of Orogenic Architecture, Kinematics, and Tectonic-Climatic Interactions within the St. Elias Orogen, Alaska
The kinematics and architecture of orogenic systems may be heavily influenced by climate, but little research has focused on the long-term effects of glacial erosion on orogenesis. Low-temperature thermochronometry and subsidiary structural, earthquake relocation, and offshore seismic reflection …
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SAR interferometry analysis of surface processes in the Pamir – Tien Shan active orogens - emphasis on coseismic deformation and landslides
… to the earthquake. It possibly activated an orogenic wedge in the easternmost segment of the Pamir-Alai collision zone. Further, the style of the segmentation may be associated with the presence of Paleogene evaporites. (2) The second focus is put on slope instabilities and consequent …
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The timing of prograde metamorphism in the Garhwal Himalaya, India
… information shows that reorganisation of the orogenic wedge resulted in the juxtaposition of rocks which attained different PT conditions at different times and places during orogenesis. Additionally, temperatures were sufficient in the early stages of orogenesis for the development of small …
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Vorticity of Flow, Deformation Temperatures, and Strain Symmetry of the Moine Thrust Zone, NW Scotland: Constraining the Kinematic and Thermal Evolution of a Collisional Orogenic System
… zone at the base of the Scandian (435-425 Ma) orogenic wedge. Quartz crystal fabrics, kinematic vorticity (Wm), and strain estimates from the ductile thrust sheets in this region are used to determine how pure and simple shear components of deformation are partitioned, and indicate that these …
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Biostratigraphy of Cretaceous and Paleogene Strata from Northern Yukon Territory and District of Mackenzie, Northwest Territories
… evidence for progressive unroofing of the orogenic wedge during Cordilleran orogenesis. This research provides a foundation for regional geologic mapping, basin evolution studies and resource assessment in these northern Canadian basins.
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The tectonometamorphic evolution of the Greater Himalayan sequence as exposed in central Nepal and adjacent south-central Tibet
… lateral extrusion followed the collapse of the orogenic wedge and a reduction in the gravitational potential necessary to drive the propagation of deformation southwards towards the foreland. To restore the geometry of the wedge, deformation stepped out-of-sequence into southern Tibet, with the …
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The thermal and metamorphic evolution of the Northern Highlands Terrane, Scotland
… and convergent deformation related to several orogenic events that occurred from Neoproterozoic to Devonian time. Deconvolving the signatures of multiple tectonic events and determining the rates of metamorphism in settings like the NHT are important parts of better understanding the thermal …
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Tectonic and climatic control on the evolution of the Himalayan mountain front
… and sedimentary processes in the Himalayan orogenic wedge, where my investigation is focused on. The study area is the intermontane Kangra Basin in the northwestern Sub-Himalaya, because the characteristics of the different Himalayan morphotectonic provinces are well developed, the area is …
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Geomechanical and tectonic investigations into the geologic history of Mars at local, regional, and global scales
… located in southern Tharsis, formed as an orogenic belt is tested using critical taper wedge mechanics (CTWM). Key physical parameters such as the coefficients of friction for the wedge material and décollement and the pore fluid pressure ratio were varied between reasonable values for …
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Progressive deformation, fluid flow and water-rock interaction in the Mexican Fold-Thrust Belt, Central Mexico
… properties consistent with the critical tapered wedge model of fold-thrust-belt development: there is a decrease in thickness, intensity of deformation and temperature of deformation towards the toe. Critical wedge theory, however, does not explain how deformation accumulates in the rocks within …