1. Mineralogy of Latosols along a regional toposequence across the Central Plateau (Brazil) : first results
- Author
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Reatto-Braga, Adriana, Bruand, Ary, De Souza Martins, Éder, Muller, Fabrice, Silva, Euzébio M., Guimarães, Edi M., Brossard, Michel, Vlahovic, I. (ed.), Tibljas, D. (ed.), Durn, G. (ed.), Bisevac, V. (ed.), Institut des Sciences de la Terre d'Orléans (ISTO), Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), EMBRAPA Cerrados (EMBRAPA CERRADOS), EMBRAPA Cerrados, Universidade Estadual de Londrina, Department of Agronomy, State University of Londrina = Universidade Estadual de Londrina, EMBRAPA Arroz e Feijão (EMBRAPA ARROZ E FEIJãO), and Embrapa
- Subjects
HORIZON ,GIBBSITE ,KAOLINITE ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,SOL DEGRADE ,ANALYSE MINERALOGIQUE ,MICROSCOPIE ELECTRONIQUE A TRANSMISSION - Abstract
The Brazilian Central Plateau is constituted of the two main geomorphic surfaces: the South American surface and the Velhas surface. These surfaces were developed during the Cretaceous Superior and Tertiary and are covered by deeply weathered Latosols. The South American surface is the oldest and occupies the highest position in the landscape (950 to 1,200 m altitude) with smoothly convex plane portions. The Velhas surface is composed by irregular and slightly sloping planes and occupies in the landscape (750 to 950 m altitude). It is connected to the South American surface by areas of steep hillsides.
- Published
- 2006