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(Article of periodic en Anglais - 2014)

Document title

Late Quaternary fluvial terrace evolution in the main southern Amazonian tributary

Authors(s) and Affiliation(s)

ROSSETTI D.F. (1) ; COHEN M.C.L. (2) ; BERTANI T.C. (1) ; HAYAKAWA E.H. (3) ; PAZ J.D.S. (4) ; CASTRO D.F. (1) ; FRIAES Y. (2) ;
(1) Inst. Nacional de Pesquisas Espaciais, São José dos Campos, BRESIL
(2) Univ. Federal do Pará, Centro de Geociências, Belém, BRESIL
(3) Univ. Federal de Alfenas, Inst. de Ciências da Natureza (ICN), Alfenas, BRESIL
(4) Univ. Federal do Mato Grosso, Inst. de Ciências Exatas e da Terra, Cuiabá, BRESIL

Abstract

This work investigates the late Quaternary evolution of the Madeira River, the biggest southern tributary of the Amazonas Basin and a major waterway in South America, with the goal of discussing the factor with highest potential of influence on its development in space and time. The approach consisted of carrying out a detailed morphological, sedimentological and chronological characterization of terrace deposits. These terraces are the testimony of successive downcutting and sediment aggradation. Episodes of terrace erosion and deposition cannot be fully accommodated within the framework of fluctuating river base level tied to Late Pleistocene – Holocene global or regional climate fluctuations. Changes in tectonic subsidence rates might have played an important role in the equilibrium state of this particular fluvial system

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2014, vol. 116 [pp. 19-37]

Bibliographic references : 1 p.

Collation : 12 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.11.021

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28424264 : Permanent link - XML version
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