Mostrando 10 resultados de: 14
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Journal of South American Earth Sciences(5)
Hydrological Processes(3)
Applied Geochemistry(1)
Chemical Geology(1)
Hydrological Sciences Journal(1)
Chemical weathering and atmospheric/soil CO<inf>2</inf> uptake in the Andean and Foreland Amazon basins
ArticleAbstract: This study is a geochemical investigation of the Andean and Foreland basins of the Amazon River at hPalabras claves:Amazon basin, Andes, Chemical weathering, Foreland, HydrochemistryAutores:Andrea Vera, Armijos E., Bourrel L., Chávarri E., Crave A., Guyot J.L., Lagane C., Laraque A., Lavado-Casimiro W., Moquet J.S., Noriega L., Pombosa R., Seyler P., Viers J.Fuentes:scopusAssessing Orinoco river sediment discharge trend using MODIS satellite images
ArticleAbstract: The aim of this study was to derive the Surface Suspended Sediment Concentration (SSSC) and river sePalabras claves:Modis, Orinoco River, Sediment load, Suspended sediments, Water colorAutores:Abrahan Mora, Alfonso J.A., Carrera J.M., Castellano B., Cochonneau G., Gallay M., Laraque A., Lopez J.L., Martinez J.M., Yepez S.Fuentes:scopusCrevassing and capture by floodplain drains as a cause of partial avulsion and anastomosis (lower Rio Pastaza, Peru)
ArticleAbstract: Avulsion is the main process at the origin of anastomosing rivers. This study illustrates 3 examplesPalabras claves:Amazonian basin, Anastomosis, Avulsion, Crevasse splay, Floodplain, PastazaAutores:Baby P., Bourrel L., Carolina Bernal, Christophoul F., Darrozes J., Guyot J.L., Laraque A., Soula J.C.Fuentes:scopusGradual diversions of the Rio Pastaza in the Ecuadorian piedmont of the Andes from 1906 to 2008: Role of tectonics, alluvial fan aggradation, and ENSO events
ArticleAbstract: The successive courses of the Rio Pastaza in the upper Amazonian Puyo plateau (Ecuador) during the pPalabras claves:Andes, Avulsion, ECUADOR, Fluvial morphology, sedimentation, TectonicsAutores:Baby P., Bourrel L., Burgos J., Carolina Bernal, Christophoul F., Darrozes J., de Berc S.B., Laraque A., Soula J.C.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:scopusHydrological control, fractionation, and fluxes of dissolved rare earth elements in the lower Orinoco River, Venezuela
ArticleAbstract: The monthly variation of dissolved rare earth elements (REEs) was assessed in the lower Orinoco RivePalabras claves:Atlantic ocean, Hydrological variation, Nd fluxes, Orinoco River, Rare Earth ElementsAutores:Abrahan Mora, Gallay M., Laraque A., Mahlknecht J., Moquet J.S., Moreau C.Fuentes: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:scopusSeasonal variability of total dissolved fluxes and origin of major dissolved elements within a large tropical river: The Orinoco, Venezuela
ArticleAbstract: Seasonal variations of total dissolved fluxes of the lower Orinoco River were calculated taking intoPalabras claves:Hydrochemistry, hydrology, Orinoco River, Total dissolved fluxesAutores:Abrahan Mora, Adèle G., Alkattan R., Castellanos B., Lagane C., Laraque A., Lopez J.L., Moquet J.S., Perez J., Rodriguez M., Rosales J., Steiger J.Fuentes:scopusSediment budget of the Napo River, Amazon Basin, Ecuador and Peru
ArticleAbstract: The upstream-downstream sediment budget along the Napo River (100 520 km2, 6300 m3 s-1) was studiedPalabras claves:Amazon River basin, Andes, Napo Basin, Pastaza Megafan, Sediment yield, TectonicsAutores:Armijos E., Bourrel L., Carolina Bernal, Christophoul F., Darrozes J., Fraizy P., Guyot J.L., Laraque A., Pombosa R.Fuentes:scopus