Global ETD Search
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Showing 1 to 20 of 95 for “"Plate Boundary"”.
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Localized disturbances in a flat plate boundary layer
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1994.
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HYDROGEOLOGIC PROPERTY ESTIMATION IN PLATE BOUNDARY OBSERVATORY BOREHOLES USING TIDAL RESPONSE ANALYSIS
… for 17 boreholes within NSF Earthscope’s Plate Boundary Observatory (PBO) network along the San Andreas fault and Cascadia subduction zone. Permeability and hydraulic diffusivity determinations range from 6.4_10-16 – 8.4_10-14 m2 and 1_10-4 – 9_10-1 m2s-1, respectively, whereas specific …
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Flat Plate Boundary Layer Flows Over Catalytic Surfaces for Micro-Combustion Applications
The reactive, flat plate, boundary layer flow over small size Pt plates was studied experimentally for the range of intermediate Reynolds numbers that pertain to micro-combustion applications. Methane-air and propane-air mixtures were burnt catalytically at varying, close-to-stoichiometric …
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The Structure and Behavior of Plate Boundary Regions Through the Wilson Cycle
… the geochemical and geophysical properties of plate boundary regions in the Atlantic, East Africa, the New England Appalachians, and subduction zones around the Pacific Ocean. Chapter One presents geochemical constraints on the extent of enriched mantle from upwelling mantle plumes relative to …
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Experiments on the stability of the flat-plate boundary layer with suction
The effects of boundary-layer suction in stabilizing the laminar boundary layer were considered in this experimental work. The experiments were conducted on a flat-plate wind-tunnel model in the V.P.I. & S.U. Stability Tunnel. The capabilities of the wind tunnel in terms of mean flow uniformity and …
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Characterizing the southeast Caribbean-South American plate boundary at 64°W
… structure of the northern South America plate boundary with the southeast Caribbean has been the focus of many studies. In this region, westward subduction of (Atlantic) oceanic South America transitions to east-west transform between continental South America and the Caribbean plate. …
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Present day plate boundary deformation in the Caribbean and crustal deformation on southern Haiti
<p>The Caribbean plate and its boundaries with North and South America, marked by subduction and large intra-arc strike-slip faults, 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 …
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Geophysical studies of plate-boundary earthquakes and mid-plate volcanism in the ocean basins
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
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Diffuse Zones of Deformation in Oceanic Lithosphere: The Azores-Gibraltar Plate Boundary and the Davie Ridge - Madagascar Region
… lithosphere: namely, the Azores-Gibraltar plate boundary in the eastern Atlantic Ocean and the Davie Ridge-Madagascar region between the east African coast and Madagascar. Despite the slow rate of deformation, high levels of seismic activity are present in both regions. The earthquakes were …
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Pore fluid pressure detection within the plate boundary fault interface of the Costa Rica convergent margin using AVO attributes
… analysis of geophysical properties along the plate boundary fault interface. In 2011, a 55 km by 11 km 3D seismic reflection survey was completed using the R/V Marcus G. Langseth offshore western Costa Rica at the convergent margin of the Cocos and Caribbean plates. We applied pre-stack …
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Global Positioning System measurements of crustal defomration across the Pacific-North American plate boundary in southern California and northern Baja, Mexico
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1996.
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Long-term exhumation of landscapes along the Pacific-North American plate boundary as inferred from apatite (U-Th)/He and ArcGIS analyses
The Pacific-North American plate boundary is typified by transpression and convergence, yet the relationship between interplate deformation and long-term crustal shortening is not fully understood. The continuous belt of rugged topography that extends along the entire plate boundary is generally …
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Oblique Seafloor Spreading, the Malpelo Plate Hypothesis, and Cocos-Nazca-Pacific Plate Motion Circuit
… spreading centers of the Cocos-Nazca plate boundary between 91°W and 94°W (α≈9°), and superfast spreading centers of the East Pacific Rise at the Nazca-Pacific plate boundary between 29°S and 32°S (α≈10°) and perhaps between ≈16°S and ≈22°S (α≈4°). Thus, oblique spreading occurs across …
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The tectonic evolution of the North Central Caribbean plate margin
… North and South Americas and the eastern Pacific plates. Thus, the pre-Tertiary history of the region is one of simple convergence. This contrasts with the complex tectonism of primary translation, with secondary convergence and divergence during the Tertiary. The ancestral Greater Antillean Arc …
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Studies of the hindbrain roof plate organiser in the chick embryo
… cell populations. The dorsal midline, or roof plate, of the developing CNS is one such organiser and is required for the specification of specific subtypes of dorsal neurons. Organisers often comprise boundaries between molecularly distinguishable compartments, however the roof plate does not …
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Towards a model of the Cenozoic tectonic development of New Zealand
… the New Zealand sector of the Australia-Pacific plate boundary. (2) The tectonic setting during the Paleogene. (3) The nature and location, north of the Alpine Fault proper, of the relative plate motion which is evident as dextral fault displacement on the Alpine Fault. (4) The total amount of …
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Geochemical and Geochronological Constraints on the Origin and Evolution of Rocks in the Active Woodlark Rift of Papua New Guinea
… of which is situated in an active and transient plate boundary zone. The focus of this PhD research is to develop a better understanding of rocks in the active Woodlark Rift, situated in Papua New Guinea's southernmost reaches. In this region, rifting and lithospheric rupture is occurring within …
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High speed geological boundary layer flows
… following work is an investigation of high speed boundary layers in geological flows. In particular, it focuses on meteorite impact structures of the Martian double-layer ejecta (DLE) type and the Mount St. Helens eruption of 1980 which was hypothesized to be an underexpanded jet originally by …
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