Bedforms and Facies

Block diagram of sedimentary structures formed by stoss-depositional, transverse bedforms with superimposed symmetrical bedforms or longitudinal spurs.
USGS Bedform Sedimentology Site: Bedforms and Cross-Bedding in Animation This USGS site holds scores of animations, block diagrams and photographs of sedimentary structures. The site is easily navigated by selecting from a list of thumbnail images or my narrowing the choices by planform shape, orientation and behavior.

Facies & Stratigraphy Concepts, Cross Stratification video collections from Dawn Sumner at University of California, Davis. These collections are subsets of larger Playlist: Sedimentology and Stratigraphy ( This site may be offline. )