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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 41 for “"Sedimentary processes"”.
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Volcanic and sedimentary processes in phreatomagmatic volcanoes
… and burial beneath later lavas. In contrast the sedimentary structures petrography, morphology and grain size characteristics of diatreme tuffs are shown to be often sufficiently well preserved to permit the identification of their original surface volcanoes and their eruptive histories.
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Sedimentary processes on the continental slope off New England
… combined to form the basis for understanding the sedimentary processes which control transportation, deposition, and erosion of sediments, and the geomorphic features of the continental slope. Gravitational processes (slumping, creep, and turbidity currents) are apparently the most effective …
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Sedimentary processes on the continental slope off New England
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1973.
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Late Pleistocene-Holocene sedimentary processes at the active margin of South-Central Chile : marine and lacustrine sediment records as archives of tectonics and climate variability
… feedbacks between tectonic, climate and surface processes, the intricate relations of which are still a matter of discussion. The Chilean convergent margin, forming the outstanding Andean subduction orogen, constitutes an ideal natural laboratory for the investigation of climate, tectonics and …
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Dynamical Sedimentary Models of Shallow Marine Environments
… a contribution of quantitative, dynamical sedimentary modeling to the analytical understanding of sedimentary processes in shallow marine environments. The dynamical sedimentary models in this treatise numerically simulate the sedimentary processes from an event time scale, based on the …
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Caracterização das unidades sísmicas, processos sedimentares e idade do cânion Almirante Câmara, bacia de Campos
… by the presence of features that indicate sedimentary processes of large proportions, whether caused by gravitational flows, bottom currents or tectonics. These features are observed in the ocean floor as well along the geologic column and can be use in sedimentary processes identification. …
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Uranium-series radionuclide records of paleoceanographic and sedimentary changes in the Arctic Ocean
… examine past dynamics of both water column and sedimentary processes. I show for the first time that a state of balance exists between ²³⁰Th production and burial in the Central Arctic basins, based on measured sedimentary ²³⁰Th, inventories in box cores, establishing this nuclide's utility as a …
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Turbidity current processes and deposits on the northwest African Margin
… African margin is affected by a wide variety of sedimentary processes, including pelagic/hemipelagic background sedimentation, alongslope bottom currents, and downslope gravity flows. A large section of the margin can be classified as a fine-grained clastic slope apron, although the presence of …
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Uranium-series radionuclide records of paleoceanographic and sedimentary changes in the Arctic Ocean
… examine past dynamics of both water column and sedimentary processes. I show for the first time that a state of balance exists between 230Th production and burial in the Central Arctic basins, based on measured sedimentary 230Thxs inventories in box cores, establishing this nuclide’s utility as …
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Differential Sedimentation In A Mississippi River Crevasse Splay
… data is capable of representing the fundamental sedimentary processes responsible for mouth bar progradation. These results will be of interest to coastal geologists, engineers and coastal managers alike.
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Coastal Ocean Morphodynamics and the Resulting Erosion and Deposition: An Analytical Approach
… are the results of a series of morphodynamical processes. In this treatise, quantitative, dynamical sedimentary models are developed to provide an analytical understanding of morphodynamical processes in coastal ocean environments. These dynamical sedimentary models numerically simulate the …
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Tectonic and sedimentary history of the Mid-Natal Valley (S.W. Indian Ocean)
… stratigraphy of the basin fill; (c) recent sedimentary processes and responses. General basin morphology is defined by five major physiographic provinces: continental shelf and slope, Tugela Cone, Central Terrace, Mozambique Ridge and deep basin plain. Thinned (20-25 km) continental crust, …
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Manganese mineralization hosted by the Rocky Gap Sandstone in Bland County, Virginia
… variety characteristic of hand samples with sedimentary layering, (2) a homogeneous goethite , and (3) a banded goethite that occurs as a microbreccia. The paragenesis of the minerals was determined using polished sections, hand samples, and field relationships. Electron microprobe analyses …
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The Quaternary evolution of the mid-Norwegian continental margin
… subglacial thermal structure. Third, Quaternary sedimentary processes both down and along the continental slope are examined. Identification of more than 300 buried slope landforms provides a process- based palaeo-environmental reconstruction. The early Quaternary slope record (2.7-0.8 M.y. ago) …
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The Cambrian: Sedimentary controls on marine ichnology and stratigraphic time at outcrop
… reconstructions can be influenced by sedimentary processes, which were heterogeneous across Cambrian seas and variably altered the record that is observable today. The ichnological record provides a valuable archive for understanding this dynamic: trace fossil diversity …
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The influence of macrofauna on intertidal sediment stability and biogeochemical properties.
… of biodiversity on selected biogeochemical sedimentary properties related to mudflat sediment stability including the sediment erosion threshold and relative erosion rate, microphytobenthos biomass and health, sediment particle size and size distribution, sediment water content, chlorophyll …
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