Yardang
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 A yardang near Meadow, Texas () (USDA photo). |
A yardang is a streamlined hill carved from bedrock or any consolidated or semiconsolidated material by the dual action of wind abrasion, dust and sand, and deflation. Yardangs become elongated features typically three or more times longer than wide, and when viewed from above, resemble the hull of a boat. Facing the wind is a steep, blunt face that gradually gets lower and narrower toward the lee end. Yardangs are formed by wind erosion, typically of an originally flat surface formed from areas of harder and softer material. The soft material is eroded and removed by the wind, and the harder material remains. The resulting pattern of yardangs is therefore a combination of the original rock distribution, and the fluid mechanics of the air flow and resulting pattern of erosion.
- See also: Wikipedia
- Related: Aeolian processes, Ventifact, Dune, Barchan, Sandhill
| Yardangs in Tithonium Chasma, Mars Yardangs in Tithonium Chasma, Mars hirise.lpl.arizona.edu/PSP_007417_1755 - Web |
| Hole in the Rock Hole in the Rock www.gemland.com/holeinrock.htm - Web |
| Window Rock Window Rock www.lapahie.com/Window_Rock_Capitol.cfm - Web |
Gallery for «Yardang»
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| Yardangs, Desert Processes Working Group; Knowledg... Yardangs, Desert Processes Working Group; Knowledge Sciences, Inc. www.tec.army.mil/.../lsyard.htm - Web |
| The Bibliography of Aeolian Research The Bibliography of Aeolian Research www.lbk.ars.usda.gov/wewc/biblio/bar.htm - Web |
