Asymmetrical ripple marks and the origin of water‐laid Cosets of Cross‐Strata

Asymmetrical ripple marks and the origin of water‐laid Cosets of Cross‐Strata Asymmetrical ripple marks formed by flowing water are described and classified on geometrical form, physical size, and hydrodynamic conditions of origin. By analysing models it is demonstrated that the character of cosets of cross‐strata resulting from the migration of asymmetrical ripple marks is dependent on ripple geometry and sediment supply. Predicted cross‐stratification patterns are shown to agree well with those described from water‐laid sediments. The use of cross‐strata in deducing sedimentation rates and depths of deposition is pointed out. Models are developed from natural situations for interpreting cross‐stratal dip direction patterns in shallow marine and deltaic sediments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geological Journal Wiley

Asymmetrical ripple marks and the origin of water‐laid Cosets of Cross‐Strata

Geological Journal, Volume 3 (2) – Mar 18, 1963

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Publisher
Wiley
Copyright
Copyright © 1963 John Wiley & Sons, Ltd
ISSN
0072-1050
eISSN
1099-1034
DOI
10.1002/gj.3350030201
Publisher site
See Article on Publisher Site

Abstract

Asymmetrical ripple marks formed by flowing water are described and classified on geometrical form, physical size, and hydrodynamic conditions of origin. By analysing models it is demonstrated that the character of cosets of cross‐strata resulting from the migration of asymmetrical ripple marks is dependent on ripple geometry and sediment supply. Predicted cross‐stratification patterns are shown to agree well with those described from water‐laid sediments. The use of cross‐strata in deducing sedimentation rates and depths of deposition is pointed out. Models are developed from natural situations for interpreting cross‐stratal dip direction patterns in shallow marine and deltaic sediments.

Journal

Geological JournalWiley

Published: Mar 18, 1963

References

  • Intraformational conglomerates and scoured surfaces in the Lower Old Red Sandstone of the Anglo‐Welsh Cuvette
    Allen, Allen
  • Cross‐strata of the Rough Rock (Millstone Grit Series) in the Pennines
    Shackleton, Shackleton
  • Delta experiments
    Smith, Smith

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