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Clean and well sorted sands in the deep Argentine Basin (SW Atlantic): the role of the Antarctic Bottom Water
Bozzano, G.; Violante, R.A.; Cavallotto, J.L. (2014). Clean and well sorted sands in the deep Argentine Basin (SW Atlantic): the role of the Antarctic Bottom Water, 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. 61-62
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., meer
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, meer
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Documenttype: Samenvatting
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Author keywords
    Deep sands; AABW
Auteurs  Top 
  • Bozzano, G.
  • Violante, R.A.
  • Cavallotto, J.L.
Abstract
    A thick deposit of clean and well sorted quartz-rich sand found in the Argentine Basin (SW Atlantic) at about 5300m water depth is interpreted as a contourite drift. A set of cores from the Argentine basin, continental rise and slope have been studied to reconstruct the source-to-sink route of these sediments. The region of Bahia Blanca is proposed as the probable source area. Sediments were transferred to the continental rise within downslope gravity flows, captured by the Antarctic Bottom Current and transported to the deep basin. The fine components of the sediment were removed by bottom flows acting in the deep basin, leaving a lag of sand.
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