Pendant bar (geology)
A pendant bar is a fluvial geomorphology term that is usually applied to large landforms created by large scale flooding events. Pendant bars are thin, sharp-crested deposits, and are typically made up of courser sediment from the bed load. This type of bar is found on the downstream side of a weathering-resistant protrusion such as a large outcrop of bedrock, and is separated from the protrusion by a depression.
Pendant bars form as high-velocity floodwater moves around a protrusion. The water scours out a depression behind the protusion and deposits the sediment a short distance downstream in a bar shaped formation. A similar process forms a sand splay which is much like a shoal but is formed on floodplains or terraces in lower intensity flooding episodes. Other fluvial features that are formed by bed load sediments are a point bar, longitudinal bar, and expansion bar.
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- Burr, Devon M., ed. (2009). Megaflooding on Earth and Mars (1. publ. ed.). Cambridge, UK: Cambridge University Press. p. 39. ISBN 9780521868525. Unknown parameter
- "The Lake Bonneville Flood". Digital Atlas of Idaho. Retrieved 6 March 2013.
- Malde, Harold E. (1978). The catastrophic late Pleistocene Bonneville flood in the Snake River Plain, Idaho (Report). U.S. Geological Survey. Professional Paper: 596. http://pubs.usgs.gov/pp/0596/report.pdf. Retrieved 7 March 2013.