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	Provedor de dados Anais da ABC (AABC) (2) Autor Bícego,Marcia C. (2) Fukumoto,Marina M. (2) Lourenço,Rafael A. (2) Silveira,Ilson C.A. (2) Figueira,Rubens C.L. (1) Mahiques,Michel M. (1) Mahiques,Michel M. de (1) Mello-e-Sousa,Silvia H. (1) Sousa,Silvia H.M. (1) Mais... Palavra-chave Sedimentation (2) Accumulation rate (1) Alkenones (1) Brazil (1) Bulk organic matter (1) South Atlantic (1) Southeastern Brazil (1) Upper slope (1) Upwelling (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Sedimentary changes on the Southeastern Brazilian upper slope during the last 35,000 years Anais da ABC (AABC) Mahiques,Michel M.; Fukumoto,Marina M.; Silveira,Ilson C.A.; Figueira,Rubens C.L.; Bícego,Marcia C.; Lourenço,Rafael A.; Mello-e-Sousa,Silvia H.. A first evaluation of the sedimentary changes, including accumulation of inorganic and organic carbon on the upper slope off Southeastern Brazil under different climatic conditions, based on the analysis of a sedimentary core, is here presented. Results indicate that sedimentation rate as well sedimentary characteristics, including the nature of the organic carbon deposited during the LGM (Last Glacial Maximum), were different from the present deposition, indicating higher primary productivity during the LGM, to be accounted for by the higher values of marine organic carbon. Nevertheless, the higher values of Accumulation Rate of calcium carbonate and organic carbon can be credited to the higher values of the sedimentation rates. Conditions prevailing... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sedimentation; Accumulation rate; Upper slope; Southeastern Brazil. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100018 Modern sedimentation in the Cabo Frio upwelling system, Southeastern Brazilian shelf Anais da ABC (AABC) Mahiques,Michel M. de; Bícego,Marcia C.; Silveira,Ilson C.A.; Sousa,Silvia H.M.; Lourenço,Rafael A.; Fukumoto,Marina M.. The analyses of Uk'37 paleotemperatures and sedimentological parameters in box cores from the Cabo Frio upwelling zone, southeastern Brazil, were used to understand the modern sedimentation as well as to evaluate the role played by the upwelling process in the sedimentary patterns. Three box-cores located closer to the upwelling area show a general trend of cooling waters taking place in the last 700 years. Since the present upwelling is dependent on local and remote wind regime, a phase of dominating NE winds favors a more effective upward transport of the cold thermocline level South Atlantic CentralWater towards the coast. The intensification in the upwelling regime for the last ca. 700 years can be associated with the strengthening of the NE winds off... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sedimentation; Alkenones; Bulk organic matter; Upwelling; Brazil; South Atlantic. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000300013 Registros recuperados: 2 Primeira ... 1 ... Última

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