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(Article of periodic en Anglais - 2008)

Document title

Epigenetic gorges in fluvial landscapes

Authors(s) and Affiliation(s)

OUIMET W.B. (1) ; WHIPPLE K.X. (2) ; CROSBY B.T. (3) ; JOHNSON J.P. (1) ; SCHILDGEN T.F. (1) ;
(1) Dept. of Earth, Atmospheric, and Planetary Sciences, Massachusetts Inst. of Technology, Cambridge, ETATS-UNIS
(2) School of Earth and Space Exploration, Arizona State Univ., Tempe, ETATS-UNIS
(3) Dept. of Geosciences, Idaho State Univ., Pocatello, ETATS-UNIS

Abstract

The formation of epigenetic gorges depends upon the competition between the resistance to transport, strength and roughness of valley-filling sediments and a river's ability to sculpt and incise bedrock. The AA. begin by introducing conceptual models for the formation of epigenic gorges in relation to landslides and fluvial aggradation. They support these models and highlight the prevalence of epigenetic gorges in actively incising landscapes by discussing examples from around the world, in rivers that drain the eastern margin of the Tibetan plateau, Peruvian Andes, Colorado Plateau and North Island of New Zealand. Motivated by these examples, they discuss the dynamics involved in epigenetic gorge formation, as well as their significance and implications in the context of studying the rates and processes of bedrock river incision and landscape evolution

Source

Article of periodic

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

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

Millesime : 2008, vol. 33, no13 [pp. 1993-2009]

Bibliographic references : 41 ref.

Collation : 8 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1650

Prodig - Bibliographie Géographique Internationale (BGI)
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