Mostrando 10 resultados de: 24
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scopus(24)
Editorial overview: Management of groundwater resources and pollution prevention
OtherAbstract:Palabras claves:Autores:Abrahan Mora, Mahlknecht J.Fuentes:scopusDistribution and environmental impact of radionuclides in marine sediments along the Venezuelan coast
ArticleAbstract: The activity concentrations of 137Cs, 40K, 226Ra and 232Th in Bq/kg from 42 marine sediment samplesPalabras claves:Marine sediments, Natural radioactivity, radionuclides, Venezuelan coastAutores:Abrahan Mora, Alfonso J.A., Handt H., LaBrecque J.J., Palacios D., Pérez K., Vasquez Y.Fuentes:scopusDoes Alumina-Refining Waste Increase the Nutrient Level in Tropical Mesotrophic Floodplain Lakes?
ArticleAbstract: Several floodplain lakes of the Orinoco River have been impacted by alkaline alumina-refining wastePalabras claves:Floodplain lakes, Nitrogen, Orinoco River, phosphorus, Red mudAutores:Abrahan Mora, Narayan A., Romero C.M.Q., Rosales J.Fuentes:scopusDynamics and fluxes of organic carbon and nitrogen in two Guiana Shield river basins impacted by deforestation and mining activities
ArticleAbstract: Deforestation and mining activities have proven to be very damaging to rivers because these activitiPalabras claves:Chl-a, fluxes, French Guiana, MINING, PN, TocAutores:Abrahan Mora, Beaucher E., Doudou J.C., Gallay M., Gardel A., Lagane C., Laraque A., Martinez J.M., Sarrazin M.Fuentes:scopusDynamics of dissolved major (Na, K, Ca, Mg, and Si) and trace (Al, Fe, Mn, Zn, Cu, and Cr) elements along the lower Orinoco River
ArticleAbstract: This study addresses the changes in dissolved major and trace element concentrations along the OrinoPalabras claves:major elements, mixing zone, Organic matter, Orinoco River, Trace elementsAutores:Abrahan Mora, Alfonso J.A., Balza L., Baquero J.C., Laraque A., Mahlknecht J., Pisapia D.Fuentes:scopusEstimation of nitrate pollution sources and transformations in groundwater of an intensive livestock-agricultural area (Comarca Lagunera), combining major ions, stable isotopes and MixSIAR model
ArticleAbstract: The identification of nitrate (NO3−) sources and biogeochemical transformations is critical for undePalabras claves:Bayesian mixing model, Comarca Lagunera, MÉXICO, Nitrate pollution, Nitrogen isotopesAutores:Abrahan Mora, Cervantes-Avilés P.A., Daessle L.W., Ledesma-Ruiz R., Mahlknecht J., Torres-Martínez J.A.Fuentes:scopusGeochemistry of recent lacustrine sediments from Fildes Peninsula, King George Island, maritime Antarctica
ArticleAbstract: Comprehensive geochemical analyses (bulk parameters, major and trace elements, organic matter, minerPalabras claves:Chemical weathering, comprehensive geochemical characterization, lake sediments, South Shetlands IslandsAutores:Abrahan Mora, Alfonso J.A., Handt H., Hernández A.C., Sira E., Vasquez Y.Fuentes:scopusGeochemistry of the "Morichales" rivers from the Venezuelan eastern plains
ArticleAbstract: Monthly (Sept 2002-Sept 2003) water samples were collected in eight stations at the Areo, Morichal LPalabras claves:Autores:Abrahan Mora, Calzadilla M., Romero C.M.Q., Salazar F.V., Sánchez L.Fuentes:scopusHeavy Metal Enrichment Factors in Fluvial Sediments of an Amazonian Basin Impacted by Gold Mining
ArticleAbstract: Artisanal and small-scale gold mining (ASGM) has been performed in the southern Ecuadorian Amazon siPalabras claves:AMAZON, contamination, Heavy Metals, rivers, SedimentsAutores:Abrahan Mora, Diana Jumbo-Flores, Hernández-Antonio A., Mahlknecht J., Max V. González-Merizalde, Pablo Alvarez-Figueroa, Santos Amable Bermeo-FloresFuentes:scopusImpact of land degradation from mining activities on the sediment fluxes in two large rivers of French Guiana
ArticleAbstract: We analyzed two contrasting catchments located among the world's largest unspoiled tropical rainforePalabras claves:Land degradation, MINING, Modis, Runoff, sediment yieldsAutores:Abrahan Mora, Allo S., Chow-Toun F., Cochonneau G., Doudou J.C., Gallay M., Gardel A., Laraque A., Martinez J.M., Sarrazin M.Fuentes:scopus