Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Composition en acides aminés des paricules en suspension autour des évents hydrothermaux (dorsale Est-Pacifique, 13°N) ArchiMer
Alberic, P.
Tipo: Text
Ano: 1986 URL: http://archimer.ifremer.fr/doc/00112/22278/19953.pdf
Imagem não selecionada

Imprime registro no formato completo
Heavy metals distribution in mangrove sediments along the mobile coastline of French Guiana ArchiMer
Marchand, Cyril; Lallier Verges, E; Baltzer, F; Alberic, P; Cossa, Daniel; Baillif, P.
The accumulation of nine heavy metals in fine-grained sediments from the mangrove fringed coast of French Guiana is evaluated. The dynamic features of the South American tropical coastline, from the Amazon to the Orinoco Rivers, result in mangrove sediments being alternately submitted to phases of erosion and net sedimentation a few tens of years long. This process influences the distribution of the heavy metals associated with these frequently re-mobilized deposits. Sedimentary cores and mangrove plant samples were collected, at different seasons, in various swamps characterized by different properties (content of sedimentary organic matter, distance from sea water and fresh water). The ranges of measured concentrations expressed in mu mol g(-1) were the...
Tipo: Text Palavras-chave: French Guiana; Mangrove; Fe/Mn cycling; Heavy metals.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1041.pdf
Imagem não selecionada

Imprime registro no formato completo
Matiere organique presente dans les eaux d'un site hydrothermal actif du Pacific-Est (13 degree N) ArchiMer
Daumas, R; Alberic, P; Brault, M; Khripounoff, A; Hermin, M-n; Marty, J-c; Saliot, A.
Organic matter present in seawater was investigated in various samples collected in an active hydrothermal site of the East Pacific Rise (EPR) near 13 degree N. During three dives of the submersible Cyana, sampling was carried out at the mouth of active chimneys and near animal communities (Alvinellinae, Pogonophora and Serpulidae). The organic C and total N content of particulate material are higher than the mean concentrations of deep water; combined amino-acids do not show a comparative augmentation, but fatty acids and hydrocarbons are higher in the vicinities of Alvinellinae and Pogonophora than in reference samples or near Serpulidae zones. It is suggested that simultaneous determination of the concentrations of organic substances and bacterial...
Tipo: Text
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00267/37787/35868.pdf
Imagem não selecionada

Imprime registro no formato completo
Optical and geochemical study of organic matter in present oxic sediments (Equatorial North Pacific Ocean Nixo area) ArchiMer
Lallier-verges, E; Alberic, P.
Optical (palynofacies) and geochemical (C, N, amino acids) study of surface sediments from the Equatorial North Pacific Ocean, which are deposited in an oxic environment and characterized by ferromanganese nodule occurrence, revealed figured remains of pelagic, benthic and terrestrial organic matter. These organic remains consist of a residual organic fraction, related to alteration phenomena. The scarcity of amorphous organic matter contrasts markedly with anoxic sediments. Amino acid comparison between hand-picked figured organic elements and bulk sediments indicates that coarse components have distinct compositions, some being biologically active sites; the preserved amino acid content of bulk sediments being mostly related to fine fractions as clays.
Tipo: Text
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00268/37901/35982.pdf
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional