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 20 of 1818 for “"Continental"”.
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Continental-scale isotope hydrology
… and ground-water resources at regional- to continental-spatial scales over contemporary- to millennial-temporal scales. The four chapters in this dissertation investigate (1) the rate of plant transpiration, (2) the seasonality of groundwater recharge, (3) the climate of the last ice age, …
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Modes of continental deformation--studies of foredeep basins, continental hot spots and intracratonic basins
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.
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Continental Magmatism and Dynamic Topography
… link between geochemical compositions of intracontinental magmatism and geophysical, geomorphological and geodetic observations of dynamic uplift. Three volcanic regions are considered in detail: western North America, northeast Brazil and Madagascar. The combined database includes 348 new …
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Magma genesis beneath active continental rifts
… Rift System (WARS) are two of the largest continental rift systems on Earth, but the processes governing rift dynamics remain controversial. The large volume and distinct chemistry of Cenozoic rift-related lavas, combined with geophysical evidence for low-density mantle underlying both …
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Kinematics and Dynamics of Continental Deformation
In contrast to the oceans, deformation in the continental lithosphere is distributed over broad regions. This dissertation is composed of three separate but related studies investigating the kinematics and dynamics of such deformation. The first two studies look at the Makran subduction zone, and …
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Numerical experiments on continental lithosphere extension
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1982.
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Fluvial sedimentation in continental half-graben basins
The stratigraphic 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 …
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From Continental Margins to the Deep Ocean
… three environments: the Peruvian Margin (continental margin), the Guaymas Basin (semi-restricted), and Pacific Gyres (oxic pelagic, ~90 Myr). Proxies such as iron speciation, Mo and U concentrations, and isotopes (δ98Mo, δ15N) were used to reconstruct redox conditions and assess proxy …
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Mass-transport deposits on Mediterranean continental margins
… and their consequences contributed to shape the continental slopes and fill the basins with characteristic signatures. Geomorphological, seismo-stratigraphic, sedimentological and biostratigraphic data provide clues to: 1) define distinct failure mechanisms investigating on factors that determine …
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Models of Continental Fold-Thrust Belt Salients
The first chapter discusses the relationship between salient geometry and the process of salient formation. In order to efficiently discuss salient geometry, I first devised a vocabulary for describing salients efficiently. Using this vocabulary, I analyzed 20 salients from around the world, in …
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Bathymetry of the South African Continental Shelf
… of which lies the prominent South African continental shelf, a relatively flat extension of the onshore coastal plain. The continental shelf is host to major mineral and petroleum deposits, home to South Africa’s major sea fisheries and full of navigation hazards. Therefore, knowledge of …
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Winter climate response to continental snow anomalies
… of one hypothesized external perturbation, continental-scale land surface snow anomalies, is investigated. Satellite observations of historical autumn-winter snow cover are used to develop model boundary conditions for a series of snow-forced numerical General Circulation Model (GCM) …
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Structure and dynamics of the continental tectosphere
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1995.
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Moluscos gastrópodes da plataforma continental externa e talude continental ao largo da laguna dos Patos - Rio Grande do Sul, Brasil
… da região da plataforma externa e talude continental, surge o programa Avaliação do Potencial Sustentável de Recursos Vivos da Zona Econômica Exclusiva – REVIZEE, tanto para a diversificação da exploração pesqueira quanto para a determinação dos limites sustentáveis de captura. Com base em …
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Interaction of an eddy with a continental slope
… a mesoscale eddy interacting with an exponential continental shelf/slope topography on both f and β-planes. The f-plane model recasts the important features of chapter two. The roles of the eddy size and strength and the geometry of topography are studied. It is seen that the multiple anticyclonic …
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Cooling and internal waves on the Continental Shelf
The evolution of a coastal ocean undergoing uniform surface heat loss is examined. The dynamics of this ocean are initially modulated by the intense vertical mixing driven by surface cooling. The strong vertical mixing prevents the formation of geostrophic flows and inhibits the cross-shelf flux of …
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Arctic Aerosol Sources and Continental Organic Aerosol Hygroscopicity
… of Arctic aerosol and the hygroscopicity of continental organic aerosol. Small particles were observed in Baffin Bay during September 2008 that coincided with high atmospheric and ocean surface dimethyl sulphide (DMS) concentrations suggesting that the aerosol formed from oceanic sources. An …
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Canada and joint continental defence : a Canadian view
Thesis (M.A.)--Michigan State University. Dept. of Political Science, 1962
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