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	Provedor de dados ArchiMer (4) Autor Parra, M (4) Pons, Jc (2) Castaing, P (1) Grousset, F (1) Jouanneau, Jm (1) Julius, C (1) Latouche, C (1) Pujos, M (1) Trouky, H (1) Mais... Palavra-chave Atlantic littoral mudflat (1) Beach ridges sands (1) Beaches (1) Cordons sableux (1) French Guiana (1) Guyane française (1) Heavy minerals (1) Holocene fine-grained deposit (1) Isotope Sr-Nd (1) Minéraux lourds (1) Origin (1) Origine (1) Plages (1) Sr-Nd isotope (1) Sédiment fin holocène (1) Vasière littorale atlantique (1) Mais... Tipo do documento Text (4) Ano 2001 (1) 1998 (1) 1988 (1) 1982 (1) País France (4) Idioma Francês (3) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Etude isotopique (Sr-Nd) de l'origine des depots fins holocenes du littoral atlantique (S-O France) ArchiMer Parra, M; Trouky, H; Jouanneau, Jm; Grousset, F; Latouche, C; Castaing, P. The fine-grained sediments of the West Gironde mud patch derive mainly from materials supplied via the Gironde estuary. Between 1500 and 1200/1300 years BP and 300/400 years BP and the present day, the Sr isotopic and chemical compositions of the estuarine silty clay inputs are the same. In contrast, these compositions were different during the period 1200/1300 to 300/400 years BP These variations probably reflect anthropogenic activities including cultivation and agriculture, in the Garonne and Dordogne drainage basins during the medieval period. Modern silty clay sedimentation in the mud flats of the Marennes-Oleron basin and Perthuis Breton is characterised by the occurrence of important quantities (between 40 and 90 % of the total) of detritus that... Tipo: Text Palavras-chave: Isotope Sr-Nd; Origine; Sédiment fin holocène; Vasière littorale atlantique; Sr-Nd isotope; Origin; Holocene fine-grained deposit; Atlantic littoral mudflat. Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43648/43244.pdf Les minéraux lourds des sables du littoral de la Guyane française : bilan sur l’origine des dépôts de la plate-forme des Guyanes ArchiMer Pujos, M; Pons, Jc; Parra, M. The distribution of heavy minerals on beaches and beach ridges sands of French Guiana shows three distinct suites from East to West: amphibole (largely dominant), staurolite, epidote and pyroxene off the Cayenne region, tourmaline and amphibole mainly off the Kourou-Mana, garnet, staurolite and tourmaline off the Mana-Maroni. A very good continuity exists between the assemblages of heavy minerals from the catchment area parent-rocks, the fluviatile sediments, the coastal zone and the shelf. The results of this study indicate and strengthen a local origin for the sandy sediments and do not support a possibility of an Amazonian source. Tipo: Text Palavras-chave: Guyane française; Plages; Cordons sableux; Minéraux lourds; French Guiana; Beaches; Beach ridges sands; Heavy minerals. Ano: 2001 URL: http://archimer.ifremer.fr/doc/00291/40271/38643.pdf North-atlantic sedimentation and paleohydrology during the late quaternary - mineralogical and geochemical data ArchiMer Parra, M. Tipo: Text Ano: 1982 URL: http://archimer.ifremer.fr/doc/00120/23160/21005.pdf Teneurs en métaux lourds des sédiments fins de la baie de Fort-de-France, Martinique, Petites Antilles françaises ArchiMer Pons, Jc; Parra, M; Julius, C. Tipo: Text Ano: 1988 URL: http://archimer.ifremer.fr/doc/00108/21883/19474.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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