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Kaolinite cristalinity index of Latosols as environment indicator of the Brazilian Central Plateau geomorphologic surfaces

Adriana Reatto-Braga 1, 2 Ary Bruand 1 Éder de Souza Martins 2 Fabrice Muller 1 Philippe Penhoud 1 Euzebio Medrado da Silva 2 Michel Brossard 3
1 ISTO - Institut des Sciences de la Terre d'Orléans
2 EMBRAPA CERRADOS - EMBRAPA Cerrados
3 EMBRAPA ARROZ E FEIJãO - EMBRAPA Arroz e Feijão
Abstract : The Brazilian Central Plateau is constituted of the South American Surface and Velhas Surface geomorphologic surfaces and represents 24% of the Brazilian territory. Latosols cover about 40% of these Surfaces. Kaolinite, gibbsite, goethite and hematite were recognized in different proportions in the clay fraction of Latosols by many authors. The objective of this work was to analyse the kaolinite cristalinity and to discuss its variability according to the Latosol location on the geomorphic Surfaces of the Brazilian Central Plateau.
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https://hal-insu.archives-ouvertes.fr/insu-00311902
Contributor : Nathalie Pothier <>
Submitted on : Friday, August 22, 2008 - 10:01:48 AM
Last modification on : Friday, April 5, 2019 - 8:08:16 PM
Long-term archiving on: : Thursday, June 3, 2010 - 5:29:54 PM

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  • HAL Id : insu-00311902, version 1

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Adriana Reatto-Braga, Ary Bruand, Éder de Souza Martins, Fabrice Muller, Philippe Penhoud, et al.. Kaolinite cristalinity index of Latosols as environment indicator of the Brazilian Central Plateau geomorphologic surfaces. European Clay Meetings, 22 to 27 july,, Jul 2007, Aveiro, Portugal. pp.253. ⟨insu-00311902⟩

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