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 5 of 5 for “"contourite drifts"”.
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Cenozoic Variations in the Deep Western Boundary Current as Recorded in the Seismic Stratigraphy of Contourite Drifts, Newfoundland Ridge, Offshore Canada
A contourite drift complex on the J-Anomaly Ridge (JAR) and Southeast Newfoundland Ridge (SENR), offshore eastern Canada, records an extensive archive of North Atlantic circulatory and sedimentary dynamics formed under the influence of the Deep Western Boundary Current (DWBC). Seismic-reflection …
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Deep-marine depositional systems of the western North Atlantic: Insights into climate and passive-margin evolution
… Current in the North Atlantic, targeting contourite drifts offshore Newfoundland to investigate the Eocene-Oligocene Transition (EOT), the most recent global greenhouse-to-icehouse transition. Results suggest that the Deep Western Boundary Current intensified gradually from 35-26 Ma, not …
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The role of abiotic and biotic interactions in deep-sea benthic habitats of the northeastern Gulf of Cadiz
… variety of geoforms including, among others, contourite drifts, channels, diapiric ridges, mud volcanoes, pockmarks, and coral mounds. At a smaller scale, the interaction between massive and fluid extrusive, biogenic, and bottom current-related processes (both depositional and erosive) …
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Deep submarine volcanoes in two geodynamic settings (Canary Basin and Gulf of Cadiz): morphology and shallow structure
… or mud lobe deposits), bottom currents (contourite moats and plastered and mounded contourite drifts), and tectonics (bulge-like structures clearly deformed by faulting). Some of these seafloor edifices have been discovered recently and are reported for the first time in this thesis. The …
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The sedimentary record of seafloor uplift
Deep-marine environments are influenced by vertical seafloor movements, such as uplift and subsidence. The vertical deformation of the seafloor and subsurface influences sedimentary systems, hydrocarbon distribution, paleoclimate archives, and poses significant geohazard risks. This thesis …