Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"strain partitioning"”.
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Relationship Between Fault Zone Architecture and Groundwater Compartmentalization in the East Tintic Mining District, Utah
… shows that fault zone variability (from strain partitioning and multiple deformation episodes) make traditional basin flow concepts inaccurate and difficult to apply in this area.
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Source Parameters and Tectonic Setting of the 2017 St. Elias Earthquake Sequence near the Southern Terminus of the Eastern Denali Fault, Northwestern Canada
… the >4,000 m high Mount Fairweather, as well as strain partitioning along the plate boundary, produce a stress regime that extends inboard towards the EDF.
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Structural geometry of the frontal Ouachitas-Arkoma basin transition zone in Western Arkansas
… basin in Oklahoma and Arkansas, respectively. Strain partitioning between the fold-thrust belt and the foreland basin is accommodated by the Wilburton Triangle Zone in the footwall of the Choctaw Fault of Oklahoma; however, few studies document the geometry of Ouachita-Arkoma transition zone in …
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Present day plate boundary deformation in the Caribbean and crustal deformation on southern Haiti
… are a natural laboratory for the study of strain partitioning and interseismic plate coupling in relation to large earth- quakes. In this work, I use the available campaign and continuous GPS measurements in the Caribbean to derive a regional velocity field expressed in a consistent …
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Deformation Mechanisms and Strain Localization in the Mafic Continental Lower Crust
… that cause weakening of the lower crust and strain localization are still poorly understood. Through microstructural analysis of naturally deformed samples, this PhD aims to investigate how weakening and strain localization occurs in the mafic continental lower crust. Mafic granulites are …
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Understanding Arc-Continent Collision in the Banda Arc Through 3-D Seismic Imaging
… magmatic systems, strike-slip motion, and strain partitioning in response to the arc-continent collision and plate convergence. The new catalog describes a complex pattern of crustal events and abundant deep slap seismicity. Lastly, I analyzed the observed crustal fabrics, mantle …
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Understanding Arc-Continent Collision in the Banda Arc Through 3-D Seismic Imaging
… magmatic systems, strike-slip motion, and strain partitioning in response to the arc-continent collision and plate convergence. The new catalog describes a complex pattern of crustal events and abundant deep slap seismicity. Lastly, I analyzed the observed crustal fabrics, mantle …
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Shear zones of the Maud Belt, Antarctica : kinetics and deformation mechanisms
… orogenies. Deformation is heterogeneous and strain is commonly localized within shear zones. The two study areas H.U. Sverdrupfjella and Neumayerskarvet mainly consist of paragneisses and orthogneisses and in places migmatites and granite intrusions. The orthogneisses and paragneisses mainly …
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Laramide transpression and oblique thrusting in the northeastern Front Range, Colorado: 3D kinematics of the Livermore Embayment
… structures in accommodating three-dimensional strain across transition zones is the fundamental problem driving this investigation. This investigation analyzed the kinematics and three-dimensional geometry of the Livermore Embayment, a transition zone which accommodated the reversal in the …
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Microstructural and crystallographic fabric analysis of stretched-pebble conglomerates in central Vermont
… lattice preferred orientations, and investigates strain heterogeneity that develops within deformed conglomerate. Recrystallization textures within quartz-rich pebbles suggest dynamic recrystallization via subgrain rotation and grain boundary migration. Dynamically recrystallized quartz grains …
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Computational modeling of indentation of materials
… alloy. More specifically, the depth dependent strain partitioning between the layers of NiAl layered structure was measured using X-Ray microdiffraction. Finite element simulations were conducted to evaluate thermal strains due to cooling. Results from this simulation were further utilized to …
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Multidisciplinary investigations of the Chaman strike-slip fault along the western Indo-Asian collision boundary, Pakistan
… uplift along the Spinatizha fault record slip partitioning resulting from the difference in the Chaman fault azimuth and orientation of the velocity vector of the Indian plate. About 1150 m displaced alluvial fan with a 10Be exposure age of ~ 35 kyr along a strand of the Chaman fault yields a …
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SAR interferometry analysis of surface processes in the Pamir – Tien Shan active orogens - emphasis on coseismic deformation and landslides
… argues for a rupture segmentation and strain partitioning associated 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 …
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Neotectonics Study Along The Frontal Thrust System Of The Fold-Thrust Belt Of Northwest Himalayas, Pakistan
… field data, 2D seismic and well data to constrain the structural geometry, geomorphic evolution, and active tectonic deformation of the Himalayan Frontal Thrust System. The first study focuses on the westernmost segment of the Himalayan frontal thrust in the Manzai Ranges. The geologic …
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Across- and along-strike structural and geochronological variations of the Nashoba-Putnam and Avalon terranes, eastern Massachusetts, Connecticut, and Rhode Island, southeastern New England Appalachians
… movement in migmatitic gneiss may represent strain partitioning of lateral movement and ductile extrusion of the channel in a sinistral transpressional regime. Based on new and existing U-Pb geochronology data, ductile deformation and possibly channel flow occurred during the latest Silurian …
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Different styles of deformation of the fore-arc wedge along the Chilean convergent margin : insights from 3D numerical experiments
… results of the 2D thermal models are used to constrain the spatial extent of the coupling zone in the 3D mechanical models. 3D numerical simulations are used to investigate how geometry, rheology and mechanical parameters influence strain partitioning and styles of deformation in the Chilean …
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Neogene seismotectonics of the south-central Chile margin : subduction-related processes over various temporal and spatial scales
… fundamental mountain building processes like strain partitioning and large-scale segmentation. In the Main Cordillera domain and at the Neogene timescale, I integrate structural and stratigraphic field observations with published isotopic ages to propose four main phases of coupled styles of …
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Numerische Modellierungen kontinentaler Kollisionszonen
Orogene Prozesse in kontinentalen Kollisionszonen werden in zwei- und dreidimensionalen numerischen Modellen auf Basis der Finite-Elemente Methode (FEM) untersucht. Dabei stehen die Verteilung der Deformation innerhalb der Modellkruste, die korrespondierenden Spannungsfelder und die aus …
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GPS Velocity Field In The Transition From Subduction To Collision Of The Eastern Sunda And Banda Arcs, Indonesia
… and collision of the Banda arc reveal how strain is partitioned away from the trench and distributed to other parts of the arc-trench system. Genrich, et. al. (1996) conducted a GPS campaign (1992-1994) throughout the Eastern Sunda and Banda arcs that demonstrated partial accretion of the …
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