Abstract
Grain size distributions in samples of fluvial gravel from the River Thames floodplain near Oxford, England are mainly bimodal, with modes near −3φ and 1φ. A mixture of a hyperbolic and a normal probability density function (pdf) is shown to give a better description of these distributions than a mixture of two normal PDF's.
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Cooper, D.M., Dixon, A.J. Characterization of grain size distributions in Thames floodplain gravels. Math Geol 21, 673–681 (1989). https://doi.org/10.1007/BF00893315
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DOI: https://doi.org/10.1007/BF00893315