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Grain-size analysis of surficial sediments from Golfo San Jorge, Argentina
Fernández, M.; Roux, A.; Fernández, E.; Calo, J.; Marcos, A.; Aldacur, H. (2003). Grain-size analysis of surficial sediments from Golfo San Jorge, Argentina. J. Mar. Biol. Ass. U.K. 83(6): 1193-1197. hdl.handle.net/10.1017/S0025315403008488
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154, more
Peer reviewed article  

Available in Authors 

Keywords
    Carbon compounds; Grain size; Granulometry; Sediment analysis; Marine

Authors  Top 
  • Fernández, M.
  • Roux, A.
  • Fernández, E.
  • Calo, J.
  • Marcos, A.
  • Aldacur, H.

Abstract
    A detailed cartography of surficial sediments from Golfo San Jorge, Argentina is presented. Cluster analysis and principal components analysis (PCA) were applied considering the weight percentage of every granulometric fraction, carbonate concentration and the depth of 39 stations carried out during research cruises on board the RV ‘Captain Oca Balda’ (INIDEP). The results defined three sectors: Sector 1, an area near the coast including Dos Bahías and Tres Puntas capes; Sector 2, a deep area far from the coast; and Sector 3, a coastal area and a south-east area between Tres Puntas cape and the inner area of the gulf. The first sector is characterized by the predominance of a coarse granulometric fraction and carbonate content. The second is defined by depth and presence of a fine granulometric fraction; while the third sector is considered a transitional sector, between the first and the second, dominated by fine sands. Sectors belong to environments of different kinds of energy or hydrodynamic conditions.

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