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 17 of 17 for “"Diapir"”.
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STRUCTURAL CHARACTERIZATION OF THE PUMA DIAPIR, GULF OF MEXICO BASIN
… characterize the structure surrounding the Puma Diapir, located in the southeastern region of the Green Canyon Protraction of the Gulf of Mexico. The seismic dataset is a multiclient 3D depth survey from WesternGeco that combines wide azimuth acquisition (WAZ) and full azimuth acquisition (FAZ) …
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Cenozoic geology of the continental slope and rise off western Nova Scotia
… margin of Nova Scotia is divided by a diapir province, 40-110 km wide and ~1000km long, that trends subparallel to the shelf edge along the upper continental rise and slope. The growth pattern for a small region of this margin (61°-64°W) during the Late Cretaceous and Cenozoic was …
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Evolution of the Onion Creek salt diapir and related sediment filled salt-withdrawal basins during the Plio-Pleistocene: analysis of growth strata and progressive unconformities, Grand County, Utah
Includes bibliographical references (leaves 86-88).
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Kinematics and dynamics of salt tectonics in the Paradox Basin, Utah and Colorado : field observations and scaled modeling
… and to investigate modification of pre-existing diapirs by subsequent regional extension and shortening, salt withdrawal and dissolution. Combined field mapping and physical modeling were used to investigate salt tectonics in the Paradox Basin, Utah and Colorado. In the scaled physical models, …
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Sedimentology, provenance, and salt-sediment interaction in the Ediacaran Pound subgroup, Flinders Ranges, South Australia
… Throughout the Adelaide Rift Complex, salt diapirs penetrated the basin fill and formed adjacent rim synclines (minibasins) due to withdrawal of underlying salt. Salt-tectonized, passive-margin settings are significant components of hydrocarbon systems in some of the world’s most productive …
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Small Venusian coronae
… be the result of gravitational relaxation of a diapir or hot-spot generated uplift. This mode of formation however, does not account for small coronae, coronae with diameters less than 200 km, that tend to exhibit depressed interiors with down-dropped or topographically level annuli. These small …
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Structural observations and stratigraphic variability in Jurassic strata, Upheaval Dome, Canyonlands National Park, Utah, USA
… to the growth and subsequent pinch-off of a salt diapir sourced from the Pennsylvanian Paradox Formation. Their conclusions were based on various growth geometries in Jurassic age strata. (2) Perhaps the most influential paper proposing a meteorite impact at Upheaval Dome is by Buchner and …
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IDENTIFYING SALT SUTURE ZONES AND LITHOLOGICAL CHANGES OF THE LOUANN SALT IN THE GULF OF MEXICO BASIN, LA. U.S.A.
… Salt deposition and deformation within the Puma Diapir, focusing on mineralogical, geochemical, and structural features of suture zones in three offshore wells (Puma 2(w), Puma 3, and Panther). Using drill cuttings, X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS), …
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Structural and Stratigraphic Reconstruction of the Whiting Dome Salt Structure in Viosca Knoll-Mississippi Canyon, GOM, Using 3D Seismic Data
… and reactive halokinesis influenced diapir creation (current).</p> <p> A model was developed that describes the interplay between salt tectonics and sedimentation though time based on intensive study of the geologic history of the area, interpretation of 3D seismic data, stratigraphic …
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Experimental investigation into lunar melt density and compressibility : the role of titanium
… eruption of A17O, we must call upon the rising diapir model of Hess (1991) to explain its eruptability.
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Petrology and geochemistry of syenite intrusions in the Eastern Province of Zambia
… northernmost Lusandwa intrusion is a composite diapir covering some 70sq Km whilst the smaller Miyira, Seya, Pule and Tantha intrusions to the south are increasingly sill-like reflecting a strong structural control to their emplacement.-Petrographically, the syenites range from mafic pyroxene …
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The geochemistry, kinematics and geodynamics of the Gannakouriep dyke swarm
… dykes are genetically linked to a single mantle diapir, with only slight source characteristic heterogeneities. All dykes are ferro-tholeiites with no primitive (picritic) member being present. Geochemical trends recorded by the swarm are easily reconcilable in terms of fractionation of the …
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Mass transfer and chemical interactions in subduction zones
… slab-tops at pressures ≤ 2.5 GPa. Accordingly, diapirism into the hotter mantle wedge would be required to initiate melting. The density contrast between mélanges and the overlying mantle would allow for buoyancy-driven diapirism at relatively low pressures and melting could subsequently occur …
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Crustal deformation source monitoring using advanced InSAR time series and time dependent inverse modeling
… system, Kilauea, and 5) interaction between salt diapir and the 2005 Qeshm earthquake in southern Iran. This thesis, written in cumulative form including 9 manuscripts published or under review in peer reviewed journals, improves the techniques for InSAR time series analysis and source modeling …
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Mass Transfer and Chemical Interactions in Subduction Zones
… slab-tops at pressures ≤ 2.5 GPa. Accordingly, diapirism into the hotter mantle wedge would be required to initiate melting. The density contrast between mélanges and the overlying mantle would allow for buoyancy-driven diapirism at relatively low pressures and melting could subsequently occur …
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A geochemical study of metasomatised peridotite and marid nodules from the Kimberley pipes, South Africa
… with formation by interaction between a diapir of asthenospheric melt and surrounding peridotitic mantle at the base of the SCLM. Comparison with chemical and isotopic data from the literature for Cr-rich "granny-smith" diopside rnegacrysts and glimmerites (phlogopite-diopside-ilmenite …