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(Article of periodic en Anglais - 2010)

Document title

Lithological and fluvial controls on the geomorphology of tropical montane stream channels in Puerto Rico

Authors(s) and Affiliation(s)

PIKE A.S. (1) ; SCATENA F.N. (1) ; WOHL E.E. (2) ;
(1) Dep. of Earth and Environmental Science, Univ. of Pennsylvania, Philadelphia, ETATS-UNIS
(2) Dep. of Geosciences, Colorado State Univ., Warner College of Natural Resources,, Fort Collins, ETATS-UNIS

Abstract

An extensive survey and topographic analysis of 5 watersheds draining the Luquillo Mountains in north-eastern Puerto Rico was conducted to decouple the relative influences of lithologic and hydraulic forces in shaping the morphology of tropical montane stream channels. GIS-based topographic analysis was used to examine channel profiles, and survey data were used to analyze downstream changes in channel geometry, grain sizes, stream power, and shear stresses. The results suggest that although there is apparent bedrock and lithologic control on local reach-scale channel morphology, strong fluvial forces acting over time have been sufficient to override boundary resistance and give rise to systematic basin-scale patterns

Source

Article of periodic

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

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

Millesime : 2010, vol. 35, no12 [pp. 1402-1417]

Bibliographic references : 2 p.

Collation : 9 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1978

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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