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 10 of 10 for “"Fore-Arc"”.
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Different styles of deformation of the fore-arc wedge along the Chilean convergent margin : insights from 3D numerical experiments
The styles of deformation of the fore-arc wedges along the Chilean convergent margin are observed to vary significantly, despite similar plate kinematic conditions. Here, I focus on the analysis of fore-arc deformation on two regions along the Chilean convergent margin at 20°-24°S and 37°-42°S. …
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The sedimentation and provenance of the Lower Old Red Sandstone Greywacke Conglomerate, southern Midland Valley, Scotland
… Midland Valley has been viewed as either i) a fore-arc basin with a rising trench-slope basin to the south (Leggett, 1980, Legget et al. 1983) or ii) an inter-arc basin with an arc in the Midland Valley and south in the location of the present day Southern Uplands (Bluck, 1983). The deposition …
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New Insight Into the Thermal-Tectonic History of the Southern Antarctic Peninsula: (U-Th-Sm)/He and Fission-Track Thermochronologic Results From Northwest Palmer Land and Alexander Island
… examines the thermal history of the southern Antarctic Peninsula through the application of thermochronometry, and presents the first high-resolution thermochronologic dataset for arc rocks of northwest Palmer Land. I present 19 new thermochronologic ages obtained via (U-Th-Sm)/He and …
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Deciphering climatic controls on sedimentation in a tectonically active area, Cyprus
… ignored. The objective of this study was therefore to investigate the stratigraphical record of the ‘fore-arc’, with the intention of elucidating the mechanisms controlling the cyclicity on sedimentation, in an attempt to understand the uplift history. Sequence stratigraphical, palaeohydraulic, …
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Seismic Imaging and Velocity Model Building in the Thrace Region, Northwestern Turkey: A Case Study
The aim of this research is to apply several seismic processing and imaging techniques to a raw 3D-land dataset and examine the quality of the subsurface images. This study uses a 3D-seismic dataset in the Thrace region of northwest Turkey that was acquired by Turkish Petroleum in 2006 covering an …
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Controls on earthquake rupture and triggering mechanisms in subduction zones
… characteristics of M ≥ 7.5 earthquakes with fore-arc geological structure suggests that long-lived frictional heterogeneities (asperities) are primary controls on the rupture extent of large earthquakes. To determine when and where stress is accumulating on the megathrust that could cause one …
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Controls on earthquake rupture and triggering mechanisms in subduction zones
… characteristics of M 7.5 earthquakes with fore-arc geological structure suggests that long-lived frictional heterogeneities (asperities) are primary controls on the rupture extent of large earthquakes. To determine when and where stress is accumulating on the megathrust that could cause one …
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REVISED STRATIGRAPHIC AND TECTONIC EVOLUTION OF THE SAN FRANCISCO RIDGE; AN EMERGING PUSH-UP STRUCTURE IN THE NORTHEAST DOMINICAN REPUBLIC
… by the Cordillera Septentrional, and a “fore arc” basin, corresponding to the Cibao Valley. The San Francisco Ridge is a 50 km long by 11 km wide deformed and faulted asymmetrical anticline, interpreted as a “push-up” structure. It is located in the northeast region of the Hispaniola …
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Mid Cretaceous fossil forests of Alexander Island, Antarctica
… in mid Cretaceous rocks on Alexander Island, Antarctic Peninsula. These fossils indicate that diverse forest communities grew upon the floodplain areas of Alexander Island during the Albian at a palaeolatitude of 69-75 ° S. The fossil forests are preserved within the fluvial sediments of the …
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Uranium-series isotope constraints on magma generation and differentiation in the central Oregon Cascades
The Cascade volcanic arc, extending for ~ 1250 km from northern California, USA, to southern British Columbia, Canada, is the surface expression of NE-directed subduction of the Juan de Fuca microplate beneath North America. Slow subduction of young, hot oceanic lithosphere creates an unusually …