Evaluation of a wide range laser diffraction grain size analyser for use with sediments

Article Article scientifique Article Evaluation of a wide range laser diffraction grain size analyser for use with sediments eng 1994 author Loizeau Jean-Luc 0000-0002-0611-0388 23020 author Arbouille Didier 24146 author Santiago Sergio 32530 author Vernet Jean-Pierre 25061 353-361 10.1111/j.1365-3091.1994.tb01410.x 1365-3091 The qualities of a laser diffraction grain size analyser, the Coulter LS-100 (range claimed by the manufacturer: 0.4-900 mum in a single measurement), are evaluated on sediments of fluvial and lacustrine origin. Accuracy and resolution of measurement on standard latex spheres are excellent. Reproducibility of the results on natural sediments appears to be satisfactory, but the method underestimates the fraction of clay particles with an efficiency of detection (36-70%) proportional to the clay content determined from pipette analysis. This efficiency is somewhat higher than those reported from other instruments of the same generation. Comparison of the Coulter LS-100 with other sizing techniques shows good agreement with the sieving method but some differences appear with the electroresistance particle technique: median and mean size values measured by the Coulter Counter TA1 are systematically lower than those obtained by the Coulter LS-100. Analyses show good correlation with those of a Malvern Laser particle analyser but a discrepancy appears with very fine silt and clay sized sediments. The Coulter LS-100 detects a higher clay content than that measured with the Malvern Laser Sizer 2600. Except when precise measurements of clay content are needed, the Coulter LS-100 produces precise and accurate results in size ranges required for geological and environmental studies. Grain-size Sediment Scaterring Method Dewey 550 41 Département F.-A. Forel des sciences de l'environnement et de l'eau 153 false Sedimentology 41 2 fa894d4f-c2ec-4cfb-8fdb-c30929393ce4 Article (Published version) Private Loizeau et al 1994 Sedimentology.PDF 1169204 application/pdf closedAccess Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau

Title	Published in	Year	Views	Downloads

Evaluation of a wide range laser diffraction grain size analyser for use with sediments	Sedimentology	1994	874	0
Les figures sédimentaires de la plate-forme médiane Nord-aquitaine (France)	Cahiers de la Faculté des sciences / Université de Genève	1989	16	203

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Arbouille, Didier