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 19 of 19 for “"basin floor"”.
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Role of Froude supercritical flow in active margin basin-floor fans, The
This dissertation focuses on the active margin basin floor fan and tests the hypothesis that whether Froude supercritical flow and a high degree of channelization are common features in basin floor fans, even in a distal part. The Froude supercritical flow may control the architecture and …
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Sedimentology and Stratigraphy of a Matrix-Poor to Matrix-Rich Depositional Continuum in Proximal Basin Floor Strata, Upper Kaza Group, Windermere Supergroup, B.C., Canada.
… to be deposited from mud-rich flows in a distal basin-floor setting; however they remain poorly understood, partly because details of lateral lithological changes are poorly known. In this study, matrix-rich strata are common in proximal basin-floor strata of the Neoproterozoic Windermere …
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Seismic-stratigraphic analysis of shelf-margin delta/slope fan and basin floor fan on high-latitude and middle-latitude margins (Ross Sea, Weddell Sea and Alabama/West Florida shelf): Paleoclimatic and eustatic implications
… sedimentation, which suggest that the basin is sediment starved during the interglacial. Seismic stratigraphic analysis of the Alabama/west Florida low-subsidence, middle-latitude continental margin indicates that upper-slope shelf-margin deltas have remained intact throughout the …
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Stratigraphic evolution and architectural analysis of structurally confined submarine fans: a tripartite outcrop-based study
… fans: the Eocene Guaso I turbidite system, Ainsa basin, Spain, and the Miocene upper Modelo Formation, eastern Ventura basin, California. In Chapter 2, geologic mapping, paleocurrent measurements, architectural analysis, and correlation of stratigraphic columns document that the ponded Guaso I …
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Identification of the physical controls on the deposition of Aptian and Albian deep water sands in the Bredasdorp Basin, South Africa
… the deep water region of the Central Bredasdorp Basin through identifying the mass transport facies and processes and relating these to tectono-eustatic factors. Since a primarily seismic-based approach was used to achieve the project objective, the results reflect findings based on 3D seismic …
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Sedimentology of a Lower Middle Pleistocene Reservoir in Garden Banks Area, Northern Gulf of Mexico: Integration of 3D Seismic, Cores, and Well Logs
… the continental slope filling and spilling minibasins. Channel complexes cut through the field as sediment migrated across the shelf and slope to the basin floor. This thesis consists of two papers which utilized donated 3D seismic data on six of the blocks in Pimento field. Public domain data …
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Stratigraphic evolution of Las Vegas Bay, Lake Mead, Nevada: 1935--2002
… level, sediment supply, fluvial discharge and basin physiography have had on stratigraphy of the basin. Mapping, seismic, sidescan sonar and bathymetry surveys, in conjunction with sediment cores, LPSA and 137Cs analyses were integrated to develop a temporal basin filling model for Las Vegas …
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An Integrated Well Log and 3D Seismic Interpretation of Missourian Clinoforms, Osage County, Oklahoma
… and deepen towards the Arkoma and Anadarko Basins to the south. Here we show that the Late Pennsylvanian Midcontinent Sea floor was in water depths greater than 600 feet and sloped to the southeast, toward major, southern basins, during the Missourian Stage in Osage County. Shelf-prism and …
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Geochemistry and Basin Analysis of Laramide Rocky Mountain Basins
… of freshwater bivalve fossils from six Laramide basins in order to reconstruct the spatial evolution of the paleotopography and Precambrian basement erosion in late Cretaceous-early Eocene. In addition it uses the sedimentology, detrital zircon U-Pb geochronology, and isotope paleoaltimetry of …
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Turbidity current processes and deposits on the northwest African Margin
… across three interconnected deep-water basins, giving an unprecedented insight into the turbidite depositional architecture of a system with complex seafioor topography and multiple sources. A detailed, core-based study of the turbidite fill in an intraslope basin within the MTS has …
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Basin Evolution and Slope System Dynamics of the Cretaceous Magallanes Basin, Chilean Patagonia
Deep-marine basins linked to active continental margins by sloped ocean-floor profiles commonlyhost the final accumulation of sediment that was eroded and transported from the continents. Thedeep-marine sediment archives preserved in these settings commonly offer the most completerecord of sediment …
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Sedimentology, Diagenesis and Reservoir Characteristics of Eocene Carbonates Sirt Basin, Libya
… Eocene carbonates in the intracratonic Sirt Basin (at the northern margin of the African continent) is strongly influenced by depositional facies and various diagenetic modifications. This thesis investigates the petrography, sedimentology, diagenetic evolution and hydrocarbon potential of …
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THE STRATIGRAPHIC POSITION OF FOSSIL VERTEBRATES FROM THE POJOAQUE MEMBER OF THE TESUQUE FORMATION (MIDDLE MIOCENE, LATE BARSTOVIAN) NEAR ESPAÑOLA, NEW MEXICO
… environment within the Española Basin while the Rio Grande Rift was active. Cavazza (1986) identified two paleodrainage systems (lithosome A, basin-margin facies and B, basin-floor facies) by means of sandstone and conglomerate petrology, paleocurrent, and sedimentary facies …
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Fluvial sedimentation in continental half-graben basins
… architecture of intracontinental rift basins is defined by a dynamic relationship between depositional belts associated with the basin floor and flanking tributary streams on the piedmont. Spatiotemporal distributions of these deposits are sensitive to basin geometry, subsidence rate, …
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Characteristics and evolution of a dynamic prograding continental margin: the late Neogene Giant Foresets Formation, northern Taranaki Basin, New Zealand
… modem continental margin in northern Taranaki Basin. The dynamic evolution of this formation is fundamentally linked to a Pliocene-Pleistocene increase in sediment flux sourced from South Island, to extensional graben formation in northern Taranaki Basin, to flexural subsidence in Wanganui …
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Sedimentary texture similarities in deep-marine channel sandstones: Insights from petrographic characterization of Cretaceous Tres Pasos Formation, Chile
… from the continental shelf to the deep ocean floor. Along the way, some of the sediment suspended in the current is deposited within the channel whereas the rest of the sediment makes its way to deeper water to construct basin-floor lobes. Slope channel deposits provide information about past …
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Sequence stratigraphic, paleoenvironmental, and chronological analysis of the late neogene Wanganui River section, Wanganui basin
Between Taranaki Basin and the central ranges of the North Island, New Zealand, lies the broadly elliptical, back-arc Wanganui Basin, half of which is onshore. This basin covers an area of about 22,000 km², and contains a Plio-Pleistocene sedimentary succession some 4 km thick. Ongoing south- to …
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Depositional system and source rock potential of the Sharon Springs Formation in Colorado
… thermally mature, within the Denver and Piceance basins. Biomarker analyses on oil collected form the Florence-Cañon City Field suggest that the Sharon Springs has contributed to production from fractured members of the Pierre Shale up section. Thermal maturity indicators in biomarkers indicate …
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The development and evolution of Etosha Pan, Namibia
… examines the geomorphology of a large endorheic basin, approximately twice the size of Luxemburg, situated in the Etosha National Park, Namibia. The main focus is directed on how and when this depression, known as Etosha Pan, came into being. Geomorphological investigation was complemented and …