Gaps and currents in the Scotia Arc (Antarctica)the tectonic role
- Fernando Bohoyo 1
- F. Javier Hernández-Molina 2
- Jesús Galindo-Zaldívar 3
- Andrés Maldonado 4
- F. José Lobo 4
- José Rodríguez-Fernández 4
- Anatoly Schreider 5
- Emma Suriñach 6
- J. Tomás Vázquez 7
- 1 Istituto Geológico y Minero de España
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2
Universidade de Vigo
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3
Universidad de Granada
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- 4 Instituto Andaluz de Ciencias de la Tierra (IACT). CSIC/UGR
- 5 P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
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6
Universitat de Barcelona
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7
Instituto Español de Oceanografía
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ISSN: 1576-5172
Año de publicación: 2010
Título del ejemplar: Deep-Water Circulation: Processes & Products. International Congress. Baitona, Pontevedra, Spain. 16 & 17 June 2010
Número: 11
Páginas: 23-24
Tipo: Artículo
Otras publicaciones en: Geotemas (Madrid)
Resumen
The tectonic evolution of the Scotia Arc since Oligocene has developed a complex array of stretched and submerged continental blocks together with small oceanic basins.The evolution of the main southern Scotia Seabasins, which allows deep circulation from Weddell to Scotia seas, reached roughly the present configuration in Middle-Upper Miocene. The most recent oceanic gateways, as Bruce Passage or Deep Basin in Discovery Bank, are deep extensional basins associated with the sinistral transcurrent fault zone of the Scotia-Antarctic plate boundary, formed from Upper Miocene to present.