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(Article of periodic en Anglais - 1989)

Document title

Using quartz grain size and shape analysis to distinguish between aeolian and fluvial deposits in the Dallol Bosso of Niger (West Africa)

Authors(s) and Affiliation(s)

BUI E. N. ; MAZZULLO J. M. ; WILDING L. P. ;

Abstract

Factor analysis of grain-size distributions gave four sand end-members that can be related to fluvial transport dynamics operating when the sediments were initially deposited. The medium to fine (and more angular shaped) sand fractions are being reworked by wind. Aeolian deposits were well sorted whereas fluvial deposits were poorly sorted in both size and shape. Although gross-shape characteristics (lower harmonics of Fourier series expansion) indicated a common source rock for all sands, the aeolian sands were well rounded whereas the fluvial sands tended to be more angular (upper harmonics of Fourier series)

Source

Article of periodic

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

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

Millesime : 1989, vol. 14, no2 [pp. 157-166]

Bibliographic references : 27 réf.

Language

Anglais

Localisation

Centre national de la recherche scientifique

INIST-CNRS, Cote INIST : 17355

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