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Paleohydrological Methods and Some Examples from Swedish Fluvial Environments. I. Cobble and Boulder Deposits

Garnett P. Williams
Geografiska Annaler. Series A, Physical Geography
Vol. 65, No. 3/4 (1983), pp. 227-243
Published by: Wiley on behalf of the Swedish Society for Anthropology and Geography
DOI: 10.2307/520588
Stable URL: http://www.jstor.org/stable/520588
Page Count: 17
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Paleohydrological Methods and Some Examples from Swedish Fluvial Environments. I. Cobble and Boulder Deposits
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Abstract

This article establishes approximate empirical relations for determining the minimum unit stream power, bed shear stress and mean flow velocity capable of moving cobbles and boulders on streambeds. The derived equations then are used to estimate the minimum paleoflows that could have transported the boulders of two ancient fluvial deposits in Sweden. The flow estimates are compared with those made by more conventional hydraulic methods. Bankfull flows also are estimated for one of the two deposits, using various hydraulic equations.

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