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Article
Shape and Erosion of Pebbles
Department of Physics Papers
  • Douglas Durian, University of Pennsylvania
  • H. Bideaud, LDFC-CNRS UMR
  • P. Duringer, Institut de Géologie
  • A. P. Schröder, LDFC-CNRS UMR; Institut Charles Sadron
  • C. M. Marques, LDFC-CNRS UMR; Institut Charles Sadron
Document Type
Journal Article
Date of this Version
2-5-2007
Abstract

The shapes of flat pebbles may be characterized in terms of the statistical distribution of curvatures measured along their contours. We illustrate this method for clay pebbles eroded in a controlled laboratory apparatus, and also for naturally occurring rip-up clasts formed and eroded in the Mont St.-Michel bay. We find that the curvature distribution allows finer discrimination than traditional measures of aspect ratios. Furthermore, it connects to the microscopic action of erosion processes that are typically faster at protruding regions of high curvature. We discuss in detail how the curvature may be reliably deduced from digital photographs.

Comments

Suggested Citation:
D.J. Durian, H. Bideaud, P. Duringer, A.P. Schröder. amd C.M. Marques. (2007). Shape and erosion of pebbles. Phsyical Review E 75, 021301.

© 2007 The American Physical Society
http://dx.doi.org/10.1103/PhysRevE.75.021301

Citation Information
Douglas Durian, H. Bideaud, P. Duringer, A. P. Schröder, et al.. "Shape and Erosion of Pebbles" (2007)
Available at: http://works.bepress.com/douglas_durian/7/