Lisle, Richard John 1988. The superellipsoidal form of coarse clastic sediment particles. Mathematical Geology 20 (7) , pp. 879-890. 10.1007/BF00890197 |
Abstract
An approximating form for coarse water-worn clasts based on the superellipsoid is proposed. The sectional outlines of pebbles from Gower (Wales) beaches approximate superellipses described by this equation in rectangular coordinates\fracxp ap + \fracxp bp = 1xpap+xpbp=1 wherea andb are principal semi-axes. For AB planes of the pebbles,p is close to 2, but in AC sections,p averages about 2.6. The measured volumes of pebbles are poor approximations to the previously proposed ellipsoidal model of pebble form. Instead, volumes are shown to accord with a three-dimensional form consisting of a superellipsoid of revolution, i.e., a solid of revolution produced by rotating a superellipse about one of its principal axes.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Earth and Environmental Sciences |
Subjects: | Q Science > QE Geology |
Uncontrolled Keywords: | Clastic sediments - grain shape - ellipsoidal form - South Wales |
Publisher: | Springer Verlag |
ISSN: | 0882-8121 |
Last Modified: | 04 Jun 2017 02:10 |
URI: | https://orca.cardiff.ac.uk/id/eprint/10475 |
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