Mineralogy of Latosols along a regional toposequence across the Central Plateau (Brazil): First results.

Adriana Reatto-Braga (1, 2) , Ary Bruand (1) , Éder de Souza Martins (2) , Fabrice Muller (1) , Euzébio M. Silva (2) , Edi M. Guimarães (3) , Michel Brossard (4)

1 ISTO - Institut des Sciences de la Terre d'Orléans
2 EMBRAPA CERRADOS - EMBRAPA Cerrados
3 Universidade Estadual de Londrina, Department of Agronomy
4 EMBRAPA ARROZ E FEIJãO - EMBRAPA Arroz e Feijão

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.

Domains: Continental interfaces, environment

Adriana Reatto-Braga, Ary Bruand, Éder de Souza Martins, Fabrice Muller, Euzébio M. Silva, et al.. Mineralogy of Latosols along a regional toposequence across the Central Plateau (Brazil): First results.. 3rd Mid-European Clay Conference, 2006, Opatija, Croatia. 3p. ⟨hal-00102305⟩