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Contourite terraces in the middle-slope of the northern Scotia Sea and Southern Atlantic Ocean: Palaeoceanographic implications
Pérez, L.F.; Hernández-Molina, F.J.; Esteban, F.D.; Tassone, A.; Piola, A.R.; Maldonado, A.; Lodolo, E. (2014). Contourite terraces in the middle-slope of the northern Scotia Sea and Southern Atlantic Ocean: Palaeoceanographic implications, in: Van Rooij, D. et al. (Ed.) Book of Abstracts. 2nd Deep-Water Circulation Congress: The Contourite Log-book. Ghent, Belgium, 10-12 September 2014. VLIZ Special Publication, 69: pp. 39-40
In: Van Rooij, D.; Rüggeberg, A. (Ed.) (2014). Book of Abstracts. 2nd Deep-Water Circulation Congress: The Contourite Log-book. Ghent, Belgium, 10-12 September 2014. VLIZ Special Publication, 69. Ghent University, Department of Geology and Soil Science/Flanders Marine Institute (VLIZ): Oostende. xviii, 152 pp., more
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more
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Document type: Summary
Keywords
Author keywords
    Contourite Terraces; Antarctic Intermediate Water; Malvinas/Falkland Through; Morpho-stratigraphic analysis
Authors  Top 
  • Pérez, L.F.
  • Hernández-Molina, F.J.
  • Esteban, F.D.
  • Tassone, A.
  • Piola, A.R.
  • Maldonado, A.
  • Lodolo, E.
Abstract
    The morphology of the continental margin off Tierra del Fuego is highly influenced by the presence of middle-slope contourite terraces. This area is dominated by the relatively strong flow associated to the northern Antarctic Circumpolar Current, with the North Scotia Ridge acting as an important morphological barrier. The flow includes portions of Upper Circumpolar Deep Water and recently formed Antarctic Intermediate Water that later flows northward reaching the Northern Hemisphere. The depth of the boundary between these water masses coincides with the regional occurrence of the terraces. Similar terraces have also been identified along the Argentine and Uruguayan margins, representing a major morphologic element in the South Atlantic Ocean with important oceanographic and palaeoceanographic implications.
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