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(Article of periodic en Anglais - 1995)

Document title

Coarse-sediment distribution as evidence of an elevation limit for flash flooding, Bear Creek, Colorado

Authors(s) and Affiliation(s)

GRIMM M.M. (1) ; WOHL E.E. ; JARRETT R.D. ;
(1) Colorado State University, Dept. of Earth resources, Fort Collins, CO 80523, ETATS-UNIS

Abstract

Measurements of coarse-grained channel sediment at 19 sites along the creek indicate a decrease in particle size in flood deposits with increasing elevation, as well as a decrease in the size of clasts introduced to the main channel along tributaries. These changes in grain size are hypothesized to reflect changes in the competence of channel transport as a result of snowmelt-dominated versus rainfall-dominated discharge regimes above and below 2100 m elevation. Calculations of flow competence versus entrainment thresholds for the deposits may support this interpretation

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

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

Millesime : 1995, vol. 14, no3 [pp. 199-210]

Bibliographic references : 55 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1996.
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