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Estudo da estrutura, morfologia e mineralogia de um sistema de solos laterítico-podzolizado na bacia do Alto Rio Negro - AM
(Universidade Estadual Paulista (Unesp), 2007-10-26)
Trata-se do estudo da estrutura, morfologia e mineralogia dos sistemas de solos laterítico e podzolizado, localizados na região amazônica, nas proximidades da cidade de São Gabriel da Cachoeira, no baixo curso do Rio ...
The application of U-isotopes to assess weathering in contrasted soil-water regime in Brazil
(2018-02-01)
This paper presents the use of U-series radionuclides 238U and 234U to evaluate the biogeochemical disequilibrium in soil cover under a contrasted soil-water regime. The approach was applied in three profiles located in ...
Deciphering the weathering processes using environmental mineralogy and geochemistry: Towards an integrated model of laterite and podzol genesis in the Upper Amazon Basin
(ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER, 2011)
This 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, ...
Fe-Ni-bearing serpentines from the saprolite horizon of Caribbean Ni-laterite deposits: new insights from thermodynamic calculations
(Springer, 2017)
Fe-Ni-bearing serpentine from the saprolite horizon is the main Ni ores in hydrous silicate-type Ni laterites and formed by chemical weathering of partially serpentinized ultramafic rocks under tropical conditions. During ...
The rate of infiltration of lateritic soilsTítulo en español.
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1952)
Expansão dos solos hidromórficos e mudanças na paisagem: um estudo de caso na região Sudeste da Amazônia Brasileira
(Instituto Nacional de Pesquisas da Amazônia, 2008)
Na região sudoeste da Amazônia brasileira, foi realizado um estudo detalhado da cobertura pedológica em uma toposseqüência representativa da paisagem regional, caracterizada por baixos platôs com depressões topográficas. ...
Large ferruginized palaeorhizospheres from a Paleogene lateritic profile of Uruguay
(Elsevier Science, 2011-10)
It is proposed herein that columns included in the unconformity between Mercedes (Upper Cretaceous) and Asencio (Lower Eocene) formations of Uruguay, forming "caves" known since the XIX century, are large ferruginized ...
Deciphering the weathering processes using environmental mineralogy and geochemistry: Towards an integrated model of laterite and podzol genesis in the Upper Amazon Basin
(Elsevier France-editions Scientifiques Medicales Elsevier, 2014)