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(Article of periodic en Anglais - 2008)

Document title

Relief evolution of the Quadrilátero Ferrífero (Minas Gerais, Brazil) by means of (Be 10) cosmogenic nuclei

Authors(s) and Affiliation(s)

SALGADO A.A.R. ; BRAUCHER R. ; VARAJÃO C.A.C. ; NALINI H.A. ;

Abstract

To quantify the erosion processes acting on the rock types that compose the Quadrilátero Ferrífero substrate, Be 10 concentrations were measured in fluvial sediments. The results indicate that the regional landscape evolution is controlled by lithotypes : the most resistant areas correspond to substrates developed on itabarites and quartzites (long-term erosion rates between 0.29 to 2.35 m/My), whereas the most fragile ones developed on schist-phyllites (long-term erosion rates between 7.95 to 11.82 m/My) and granite-gneisses (long-term erosion rate at 12.92 m/My)

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2008, vol. 52, no3 [pp. 317-323]

Bibliographic references : 16 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 8829

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2008.
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