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(Article of periodic en Anglais - 2014)

Document title

Tracking sediment provenance and erosional evolution of the western Greater Caucasus

Authors(s) and Affiliation(s)

VEZZOLI G. (1) ; GARZANTI E. (1) ; VINCENT S.J. (2) ; ANDÒ S. (1) ; CARTER A. (3) ; RESENTINI A. (1) ;
(1) Lab. for Provenance Studies, Dept. of Earth and Environmental Sciences, Univ. Milano-Bicocca, Milano, ITALIE
(2) CASP, Dept. of Earth Sciences, Univ., Cambridge, ROYAUME-UNI
(3) London Thermochronological Research Group, Research School of Earth Sciences, UCL - Birkbeck College, London, ROYAUME-UNI

Abstract

This paper investigates landscape characteristics and sediment composition in the western Greater Caucasus by using multiple methods at different timescales. Areas of active recent uplift are assessed by quantitative geomorphological techniques (digital elevation model analysis of stream profiles and their deviation from equilibrium) and compared with regions of rapid exhumation over longer time intervals as previously determined by fission-track and cosmogenic-nuclide analyses. Complementary information from petrographic and heavy-mineral analyses of modern sands and ancient sandstones is used to evaluate erosion integrated throughout the history of the orogen. It is suggested that the bedrock–channel network can reveal much of the evolution of tectonically active landscapes, and implies that the controls on channel gradient ultimately dictate the topography and the relief along the Greater Caucasus. The results indicate westward decreasing rates of erosional unroofing from the central part of the range to the Black Sea

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2014, vol. 39, no8 [pp. 1101-1114]

Bibliographic references : 2 p.

Collation : 10 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3567

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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