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.
Results
Showing 1 to 17 of 17 for “"Seismic stratigraphy"”.
-
Deep sea seismic stratigraphy
Horizons responsible for the reflection of seismic waves within deep-sea sediments are shown to be less reliable for the purposes of correlation than their counter-parts in shallow margin sequences. Similar surfaces, such as abrupt lithological changes and unconformities, in the two different …
-
Seismic stratigraphy analysis of a Tertiary basin south-east Mexico
Includes bibliographical references (pages 78-80).
-
Seismic stratigraphy and tectonic evolution of a transform continental margin, offshore Sierra Leone
… broader aspects of basin structural evolution, seismic stratigraphy and reservoir development. The basin analysis is based on 2D seismic dataset, acquired in 2002 by TGS-NPEC. Seven megasequence boundaries have been identified in the offshore Sierra Leone basin. There is one megasequence …
-
Quaternary Seismic Stratigraphy of the Inner Shelf and Coastal Zone, Southern Delmarva Peninsula, Virginia
… of resolving problematic lower Coastal Plain stratigraphy. It is also an ideal site for examining the variability in sequence architecture and seismic facies development that occurs when paleogeographic changes significantly affect regional inner shelf physiography.</p>
-
Seismic stratigraphy and burial history for source and reservour prediction in the Luderitz basin, license blocks 2412B and 2413B, offshore Namibia
… in the 1990s. Selected lines of the GPN13 2D seismic dataset on blocks 2412B/2413B and well 2513/8-1 were used to predict lithofacies in the basin based on seismic stratigraphic interpretation. A Wheeler diagram was constructed to obtain better insight into the time relationships of the …
-
Tectonic Setting, Structure, and Seismic Stratigraphy of the Apalachicola Rift and its Overlying Sag Basin in the Northeastern Gulf of Mexico
… (Triassic-early Jurassic), basinward-dipping, seismic reflectors within the syn-rift half-graben of the AR as either: 1) volcanic layers or sills erupted and tilted within Mesozoic half-grabens; or 2) as layered, volcanic flows ("seaward-dipping reflectors") erupted during GOM phase 1 rifting …
-
Cenozoic Variations in the Deep Western Boundary Current as Recorded in the Seismic Stratigraphy of Contourite Drifts, Newfoundland Ridge, Offshore Canada
… of the Deep Western Boundary Current (DWBC). Seismic-reflection profiles constrained by drill sites from IODP Expedition 342 are used to map the spatial and temporal distribution of contourite sedimentation and to evaluate the Cenozoic history of the DWBC within a preexisting climatic …
-
Gravity Modeling, Seismic Stratigraphy, and Thermal Maturity Modeling of Hydrocarbons of the Permian Foreland Basin, USA, and the Sergipe-Alagoas Rifted-Passive Margin, Brazil
… crust in the Sergipe-Alagoas basin based on 2D seismic interpretations and 2D and 3D gravity models: 1) necked zone of continental crust; 2) hyper-extended zone of continental crust, and 3) the outer domain. The conjugate margin in northern Gabon, west Africa is wider with greater stretching and …
-
Tectonic and sedimentary history of the Mid-Natal Valley (S.W. Indian Ocean)
… (a) basin history and tectonic evolution; (b) seismic 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 …
-
Submarine channelforms and fans in the Miocene Moki and Mount Messenger formations, Taranaki Basin, New Zealand
… conduits (i.e. canyons, channels and gullies) in seismic reflection profiles. Past studies considered that these conduits pass through submarine fans, while in reality fans occur basinward of the mouths of the sediment conduits. This thesis study leverages seismic reflection data and applies …
-
Seismic Facies Mapping for Source Rock Distribution of the Rakopi Formation in Deep-water Taranaki Basin, New Zealand
… Formation in the Romney 3D survey utilizing seismic facies analysis, log motif, and geochemical evaluations. </p> <p>The Rakopi Formation records the northwest prograding megasequences of the Taranaki Delta. Seismic facies are defined by internal reflection configuration, reflection …
-
Formation and Evolution of Valdivia Bank, Walvis Ridge, South Atlantic Ocean from Geophysical Data and International Ocean Discovery Program Expedition 391 Drilling Results
… Valdivia Bank sediments and apply principles of seismic stratigraphy to multichannel seismic data to understand the sedimentation history of the plateau and the nature and timing of late-stage volcanism. Finally, I perform a structural assessment of Valdivia Bank to uncover the faulting and …
-
Cenozoic geology of the continental slope and rise off western Nova Scotia
… Late Cretaceous and Cenozoic was studied using seismic stratigraphy and well data. Structure maps show that a steep continental slope existed landward of the diapir province (~2200-3800 m water depth) from Early Cretaceous until Miocene time when onlapping upper rise sediments reduced the …
-
High resolution seismology, archaeology and submerged landscapes - an interdisciplinary study
… post-survey signal enhancement of high-frequency seismic data. Investigation into the characteristics of commercial Chirp and Boomer seismic indicates that Chirp systems offer superior repeatability and vertical resolution, making possible development of a rapid, robust processing flow for …
-
Siesmic Stratigraphy of Upper Pleistocene gravel and holocene mudbelt deposits between wreck point and the kamma river on the western shelf of South Africa
… at approximately 29º20.00′S, based primarily on seismic stratigraphy. The high resolution airgun seismic survey performed by De Beers Marine during 1998 was interpreted based on seismic stratigraphic principles and the chronology of the seismic profiles was based on correlation to …
-
Reflection seismic investigations of the Canadian Beaufort Sea margin, Arctic Ocean
The seismic stratigraphy and sedimentary architecture of the Canadian Beaufort Sea margin are investigated using a comprehensive grid of two-dimensional seismic reflection data. Three cross-shelf troughs, representing locations of former ice streams draining a 1000 km-long section of the Laurentide …
-
A seismic stratigraphic analysis and petroleum system characterization of the cretaceous sequence in central Walvis basin, offshore Namibia
… study aims to address this gap by carrying out a seismic stratigraphic analysis of 2D seismic data and well data in the Central Walvis Basin. Nine (9) seismic intervals (SI) have been identified spanning Late Jurassic to Cretaceous based on seismic character and well log data corresponding to the …