Abstract

The discharge regimes that occur in modern rivers vary chiefly with climate. Where there are large sand waves in a river, these show different responses to flow changes of different speeds and magnitudes. A rapid fall of discharge leaves bed forms stranded in the river, with flow around the front eroding the slip faces. With a slower rate of fall, smaller superimposed sand waves produce groups of convex-upward erosion surfaces within tabular cross-bedded sets. With a very slow fall and pronounced low-stage reworking, the sand waves are largely dissected.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.