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 12 of 12 for “"Geodynamic modeling"”.
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Geodynamic Modeling Applied to Venus
Modern geodynamic modeling is more complex than ever, and has been used to answer questions about Earth pertaining to the dynamics of the convecting mantle and core, layers humans have never directly interacted with. While the insights gleaned from these models cannot be argued, it is important to …
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Geodynamic Modeling of Mars Constrained by InSight
Through geodynamic modeling, I investigate how Mars could have produced the extensive volcanism required to form the Tharsis rise early in its history, as well as continue to produce small amounts of melt up to present-day, in order to account for the evidence of limited geologically recent …
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Petrological and rheological controls on volcanism to terrestrial planets
Through experimental petrology and geodynamic modeling, processes of melting under thick lithospheres on the Earth and the moon are investigated. Phase equilibrium experiments were carried out on Apollo 14B and 15C picritic glasses (Chapters 5 and 6) and on a Sierran high-potassium lava (Chapter …
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Tectonic evolution of the Thakkahola Graben and Dhaulagiri Himalaya, Central Nepal
… field studies, remote sensing analyses, geodynamic modeling, and a wide variety of geochronologic tools. The goals are to characterize the relationships between the three extensional systems, document their neotectonic histories in relation to their older manifestations, and develop a …
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Seismic anisotropy and mantle dynamics beneath the central and western United States
… and previous results from seismic tomography and geodynamic modeling, we propose a model involving deflecting of asthenosphere flow by the bottom of the lithosphere and channeling flow by a zone of thinned lithosphere approximately along the northern boundary of the Yavapai province.</p> <p>The …
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Mantle upwelling, melt generation, and magma transport beneath mid-ocean ridges
… of new oceanic crust is the result of a complex geodynamic system in which mantle rises beneath spreading centers and undergoes decompression melting. The melt segregates from the matrix and is focused to the rise axis, where it is eventually intruded and/or erupted to form the oceanic crust. …
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THE CLIMATIC, BIOTIC AND TECTONIC EVOLUTION OF THE PALEOGENE RENOVA FORMATION OF SOUTHWESTERN MONTANA
… through a combination of geologic field work and geodynamic modeling.</p> <p>The results of this study indicate that a seasonal summer dry climate became established in the northern Rocky Mountains by early Oligocene time. This is indicated by the elimination of subtropical plant species, the …
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THE CLIMATIC, BIOTIC AND TECTONIC EVOLUTION OF THE PALEOGENE RENOVA FORMATION OF SOUTHWESTERN MONTANA
… through a combination of geologic field work and geodynamic modeling.</p> <p>The results of this study indicate that a seasonal summer dry climate became established in the northern Rocky Mountains by early Oligocene time. This is indicated by the elimination of subtropical plant species, the …
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Geodetic and Geodynamic Constraints on Vertical Land Motions in the Chesapeake Bay
… and glacial isostatic adjustment. We perform geodynamic modeling to assess the influence of both processes on the region. We estimate present-day rates of dynamic topography using ASPECT (Advanced Solver for Planetary Evolution, Convection, and Tectonics) and vertical land motions due to …
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Three-dimensional thermo-mechanical modeling of deformation at plate boundaries : case study San Andreas Fault System
… requires a 3D thermomechanical numerical modeling. However, the software tool required for such modeling is not available at present in the geodynamic modeling community. The major aim of the presented work is comprised basically of two interconnected tasks. The first task is the …
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Investigating the Kinematics and Dynamics of Strain Localization in the Northern Western Branch of the East African Rift System
… the Victoria microplate and geodetic inversion modeling with TDEFNODE software. Modeling results from project 1 indicate that rifting in the northern Western Branch is likely influenced by deep melt that migrates northward from the Kivu Rift and deep melt that migrates westward along the Aswa …
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Moving hotspots
… motion. For the determination of hotspot drift, geodynamic modeling has been carried out. Assuming that a mantle plume rising from the core-mantle boundary is advected in an convecting mantle, a hotspot sould move relative to the surface of the Earth. Seismic tomography models were converted into …