Deciphering the weathering processes using environmental mineralogy and geochemistry: Towards an integrated model of laterite and podzol genesis in the Upper Amazon Basin

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFritsch, Emmanuel
dc.creatorBalan, Etienne
dc.creatorDo Nascimento, Nadia Regina
dc.creatorAllard, Thierry
dc.creatorBardy, Marion
dc.creatorBueno, Guilherme
dc.creatorDerenne, Sylvie
dc.creatorMelfi, Adolpho Jose
dc.creatorCalas, Georges
dc.date2014-05-20T14:17:24Z
dc.date2016-10-25T17:39:56Z
dc.date2014-05-20T14:17:24Z
dc.date2016-10-25T17:39:56Z
dc.date2011-02-01
dc.date.accessioned2017-04-05T22:24:43Z
dc.date.available2017-04-05T22:24:43Z
dc.identifierComptes Rendus Geoscience. Paris: Elsevier France-editions Scientifiques Medicales Elsevier, v. 343, n. 2-3, p. 188-198, 2011.
dc.identifier1631-0713
dc.identifierhttp://hdl.handle.net/11449/25212
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25212
dc.identifier10.1016/j.crte.2010.11.002
dc.identifierWOS:000289880800009
dc.identifierhttp://dx.doi.org/10.1016/j.crte.2010.11.002
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870125
dc.descriptionThis article reports major results from collaborative research between France and Brazil on soil and water systems, carried out in the Upper Amazon Basin. It reveals the weathering processes acting in the partly inundated, low elevation plateaus of the Basin, mostly covered by evergreen forest. Our findings are based on geochemical data and mineral spectroscopy that probe the crystal chemistry of Fe and Al in mineral phases (mainly kaolinite, Al- and Fe-(hydr)oxides) of tropical soils (laterites). These techniques reveal crystal alterations in mineral populations of different ages and changes of metal speciation associated with mineral or organic phases. These results provide an integrated model of soil formation and changes (from laterites to podzols) in distinct hydrological compartments of the Amazon landscapes and under altered water regimes. (C) 2010 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherElsevier France-editions Scientifiques Medicales Elsevier
dc.relationComptes Rendus Geoscience
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCrystal chemistry of Al and Fe
dc.subjectKaolinite
dc.subjectFe-oxides
dc.subjectOrgano-metallic complexes
dc.subjectLaterites podzols
dc.subjectAmazon Basin
dc.titleDeciphering the weathering processes using environmental mineralogy and geochemistry: Towards an integrated model of laterite and podzol genesis in the Upper Amazon Basin
dc.typeOtro


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