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(Article of periodic en Anglais - 2011)

Document title

Deep weathering and landscape evolution in a tropical plateau

Authors(s) and Affiliation(s)

MODENESI-GAUTTIERI M.C. (1) ; MOTTA DE TOLEDO M.C. (2 3) ; TAKASHI HIRUMA S. (1) ; TAIOLI F. (2) ; SHIMADA H. (1) ;
(1) Inst. Geológico, Secretaria do Meio Ambiente, São Paulo, BRESIL
(2) Escola de Artes, Ciências e Humanidades - Univ., São Paulo, BRESIL
(3) Inst. de Geociências, Univ., São Paulo, BRESIL

Abstract

Six complete profiles of the weathering mantle were sampled by drilling on the three stepped levels of the Campos do Jordão Plateau, on the NW flank of the Continental Rift of Southeastern Brazil. Mineralogical and micromorphological analyses of drill core samples, complemented by geochemical interpretations and by previous data on the upper saprolite, indicate continuity of a general lateritic trend during the entire process of mantle formation. Lateritization phases of different intensity were defined and considered to reflect adjustment to changes in environmental conditions created by the gradual uplift of the plateau to its present position

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2011, vol. 85, no3 [pp. 221-230]

Bibliographic references : 1 p.

Collation : 4 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.01.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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