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Título: | Geodynamic Evolution of the Eastern Segment of the Azores-Gibraltar Zone: The Gorringe Bank and the Gulf of Cadiz Region |
Autor: | Tortella, D.; Torné, Montserrat CSIC ORCID ; Pérez-Estaún, Andrés CSIC | Palabras clave: | Seismic reflection North Atlantic Plate boundary Stratigraphy structural geology |
Fecha de publicación: | 1997 | Editor: | Kluwer Academic Publishers | Citación: | Marine Geophysical Research, 19: 211- 230 (1997) | Resumen: | Detailed structural interpretation of the recently acquired deep seismic multichannel profiles along the Iberian Atlantic Margins (IAM Project) provides new results on the geodynamic evolution of the eastern part of the Azores-Gibraltar plate boundary. Thrusting and folding of the oceanic basement and of Mesozoic and Cenozoic sedimentary cover of the Gorringe Bank region are consistent with the N-S convergence of Iberia and Africa. Compressive structures in the Gorringe Bank region are spread over a wide area. Deformation under compression took place mainly in Tertiary times, as is evidenced by a basal unconformity and several discontinuities in Tertiary sediments, although some deformation has also been recorded in Quaternary sediments. The compressive structures in the Gulf of Cadiz are E-W oriented thrusts, folds and related diapiric structures. N-S oriented transpressive deformation is likely to occur in the western Portuguese platform. There is no continuity of structures from the oceanic to the continental domain, suggesting that deformation transfers from one side to the other through a transcurrent fault zone. The fault contact between the two domains is located in the ocean-continent transition zone. | Versión del editor: | https://doi.org/10.1023/A:1004258510797 | URI: | http://hdl.handle.net/10261/238018 | DOI: | 10.1023/A:1004258510797 | Identificadores: | doi: 10.1023/A:1004258510797 issn: 0025-3235 |
Aparece en las colecciones: | (Geo3Bcn) Artículos |
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accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
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