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Science 30 August 1963:
Vol. 141. no. 3583, pp. 801 - 802
DOI: 10.1126/science.141.3583.801
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Articles

Size Distributions of Sedimentary Populations

John J. W. Rogers 1 and Carlos Schubert 1

1 Department of Geology, Rice University, Houston 1, Texas

Separate sedimentary populations are not all characterized by lognormal size distributions. Populations of different sizes of material are produced by different mechanisms of abrasion: pebbles and gravel by singlestage crushing; sand by repeated abrasion; and silt and clay by chipping from larger grains. Each mechanism imposes a different size distribution on the product.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)