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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)

Abstract


Journal of Sedimentary Petrology
Vol. 43 (1973)No. 4. (December), Pages 1161-1166

Lognormal Size Distribution of Particulate Matter

Khalid Mahmood

ABSTRACT

Communication, analysis and interpretation of size distribution data for particulate matter are greatly simplified if observed size distributions can be represented by known probability density functions. Lognormal size distribution is often found applicable to particulate matter in nature and in industrial processes. In practice, many advantages accrue when lognormal distribution is applicable.

It has been theoretically shown by other workers that processes involving "proportionate effect" yield lognormal size distributions. Numerical experiments show that alluvial transport of sand-size bed material also results in lognormal size distribution even though the starting bed-material has a uniform or gaussian distribution.


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