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(Article of periodic en Anglais - 2005)

Document title

Neotectonics and channel evolution of the Lower Ivinhema River : a right-bank tributary of the Paraná River, Brazil

published at : Tropical rivers

Authors(s) and Affiliation(s)

FORTES E. ; STEVAUX J.C. ; VOLKMER S. ;

Abstract

Using terrace mapping, sediment composition, C 14 and thermoluminescence dating, and morphostructural analysis, this paper presents the composed longitudinal profile and the structural analysis of the lower course of the Ivinhema River. The tectonic model of the study area constitutes a sequence of NW tilting fault-blocks formed from antithetic faults that control channel sinuosity, longitudinal profile, floodplain distribution and valley asymmetry. The present river channel has a higher sinuosity in its lower course than in the former period. Ancient gravel deposits are being re-worked and deposited as gravel bars

Source

Thematical fascicle

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 2005, vol. 70, no 3-4 [pp. 325-338]

Bibliographic references : 18 ref.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2006.
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