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Showing 1 to 20 of 22 for “"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 belts …
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From the Foreland and Retroarc Thrust Belts to the Mantle Transition Zone: First Multi-Scale Retrodeformable Transect of the Active 90 mm/yr Taiwan Arc-Continent Collision
… seismic reflection profiles of the retroarc thrust belt near Chimei Canyon offshore eastern Taiwan, which is one of the largest submarine canyons around Taiwan and results from the <1 Ma uplift of the retroarc thrust belt and submarine erosion. Chapter 2 presents the precollisional …
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Behavior of Hybrid Thick- and Thin-Skinned Orogenic Wedges in the Western Interior USA and South-Central Andes
… South America host two of the largest fold and thrust belts on Earth, recording upper-plate processes active during ocean-continent convergence and the construction of Cordilleran orogenic systems. These systems are at dramatically different stages in their tectonic evolution, enabling a …
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Colapso gravitacional e estruturação da seção marinha da bacia da Foz do Amazonas no contexto de múltiplos níveis de destacamento
… (~10 Ma). Gravity-driven deep-water fold-and-thrust belts stand as the most remarkable structures along the margin, deforming both the deep-sea fan and earlier marine sequences (Lower Cretaceous-Middle Miocene). Thrust structures, imaged by 2D multichannel seismic profiles, were driven by …
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Models of Continental Fold-Thrust Belt Salients
… 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 patterns …
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Stratigraphy and Structural Geometry at the Leading Edge of the Montana Thrust Belt, East of Sun River Canyon, Lewis and Clark and Teton Counties, Montana
… forms a wedge at the leading edge of mountain thrust-belts. Triangle zone geometry is well documented in a series of structures that stretch approximately 900 kilometers, from northeast British Columbia into southwest Alberta, Canada. Triangle zones provide the structural traps that contain …
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Stratigraphy and Structural Geometry at the Leading Edge of the Montana Thrust Belt, East of Sun River Canyon, Lewis and Clark and Teton Counties, Montana
… forms a wedge at the leading edge of mountain thrust-belts. Triangle zone geometry is well documented in a series of structures that stretch approximately 900 kilometers, from northeast British Columbia into southwest Alberta, Canada. Triangle zones provide the structural traps that contain …
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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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Controlling factors on Mesozoic and Cenozoic metamorphism and deformation in the Maria Fold and Thrust Belt and Colorado River Extensional Corridor, Southeastern California and Western Arizona
The Maria Fold and Thrust Belt (MFTB) and Colorado River Extensional Corridor (CREC) were the sites of atypically extreme compression in Mesozoic time and extension in Cenozoic time, respectively. The orientations of these deformational structures are at odds with the Sevier and Laramide thrust …
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Structural Analysis Of The Wissahickon Formation Along The Northern Section Of The Wissahickon Creek Valley, Philadelphia, PA
… and in face quite similar to that seen in most thrust belts throughout the world.
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Investigation of a triangle zone structure between Augusta and Bowman’s Corners, Lewis and Clark County, Montana
… reservoirs along Canada’s Rocky Mountain thrust belt are contained by a triangle zone, which is comprised of complex antiformal wedge structures that commonly form along the leading edges of foreland fold-thrust systems world-wide. Duplex imbrication within triangle zones create stacked …
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Investigation of a triangle zone structure between Augusta and Bowman’s Corners, Lewis and Clark County, Montana
… reservoirs along Canada’s Rocky Mountain thrust belt are contained by a triangle zone, which is comprised of complex antiformal wedge structures that commonly form along the leading edges of foreland fold-thrust systems world-wide. Duplex imbrication within triangle zones create stacked …
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Expanding the Geographical Footprint of CO₂ Storage through Numerical Investigations of Industrial-Scale Carbon Sequestration
… of Devonian-Silurian sandstones in the Pulaski Thrust system of Southwest Virginia for carbon storage, (3) a simulation study identifying major play types that could be utilized for commercial carbon storage within global fold-and-thrust belt geologies, and (4) a reactive transport simulation …
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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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Fluid evolution, vein formation and alteration associated with a low angle shear zone at the northern Variscan fold-and-thrust belt in the vicinity of the Aachen Geothermic-drilling, Western Germany
… drill are located within the Aachen fold and thrust belt system. The carbonates and siliciclastic rocks are crosscut by hydrothermal veining and cataclastic to mylonitic deformation processes. Vein formation is related to a low angle shear zone. Veins in some places form a regular and dense …
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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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