نتایج جستجو برای: thrust sheet
تعداد نتایج: 48424 فیلتر نتایج به سال:
The far western Aleutian Island Arc is actively colliding with Kamchatka. Westward motion of the Aleutian Arc is brought about by the tangential relative motion of the Pacific plate transferred to major, right-lateral shear zones north and south of the arc. Early geologic mapping of Cape Kamchatka (a promontory of Kamchatka along strike with the Aleutian Arc) revealed many similarities to the g...
The outer Lesser Himalaya in eastern Nepal has gone through intense ductile shearing and recrystallization due to the emplacement of Higher Himalayan thrust sheet. It resulted formation various microstructures footwall rocks Himalaya. Present study focuses on quartz grain shear sense indicators metasedimentary interpret deformation characteristics area. Thin sections were prepared from oriented...
[1] In the Shiquanhe area of far-western Tibet, midCretaceous strata lie unconformable on ophiolitic melange and Jurassic flysch associated with the Bangong-Nujiang suture zone. On the basis of our mapping and geochronologic studies, we suggest that these Cretaceous strata were shortened by >57% over a north south distance of 50 km during Late Cretaceousearly Tertiary time. The Late Cretaceous ...
binaloud mountains formed during collision of iran and turan plate in the late triassic time and caused shortening of the sedimentary cover because of cimmerian and alpine orogeny. the thrust sheets with different generations formed as a results of the binalood and alborz fold- thrust belts. northeast of iran that was already south coast of the divergent margin of the paleothetys ocean at this ...
Use of balanced cross-section methods, which assume length and area conservation in two dimensions, to quantitatively analyze fold-and-thrust belts is vital structural analyses. However, layer-parallel shortening beyond this assumption thus indescribable by methods. The contribution accommodating has rarely been determined, especially sections hundreds kilometers scale. In study, we conducted a...
[1] The southern Canadian foreland fold-and-thrust belt (FFTB) (SW Alberta–SE British Columbia) records the interplay between foreland basin evolution with the deformingwedge and thus controls the regionalscale overburden and exhumation history. Overburden estimates are typically based on the assumption that peak burials were reached by sedimentary burial prior to the emplacement of thrust shee...
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