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Geochemical and Sedimentary flux Aspects in Amazon Continental Shelf

Author Affiliations

  • 1Departamento de Química, Universidade Federal do Pará. Av. Augusto Corrêa n. 1, Campus Guamá, 66075-100 Pará, BRAZIL
  • 2Laboratorio de Estudo de Ecossistemas Amazônicos, Universidade Federal do Oeste do Pará, Av. Marechal Rondon s/n Pará, BRAZIL
  • 3Instituto Nacional de Pesquisas da Amazônia. Av. André Araújo 2936, Manaus, AM 69060-001 BRAZIL
  • 4Laboratorio de Estudo de Ecossistemas Amazônicos, Universidade Federal do Oeste do Pará, Av. Marechal Rondon s/n Pará, BRAZIL
  • 5Laboratorio de Estudo de Ecossistemas Amazônicos, Universidade Federal do Oeste do Pará, Av. Marechal Rondon s/n Pará, BRAZIL

Res. J. Marine Sci., Volume 1, Issue (2), Pages 1-7, June,24 (2013)

Abstract

This study was conducted in Amazon Continental Shelf (47º52'W-4°19'N and 51°04'W-2º16'S) to evaluate the geochemical and sedimentary flux of C, N and P, and the metals Fe, Mn and Al all associated with bottom sediments. Sampling occurred between 1997 and 2007 always between May-June, the period considered of most discharge of Amazonas and Pará rivers. Chemical analyzes were conduced according to internationals standards and usual proceedings. Results showed there was a similarity between the data from the various sampling sites, which reinforces the argument that there is homogeneity of the study area due to mixture of the sedimentary discharge from rivers Amazonas and Pará by the oceanic currents action. A trend of transport and sedimentation were observed mainly in the inner shelf by the organic compounds and metals correlation.

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