Source: Annenberg/CPB Resources - Earth Revealed - 22. Wind, Dust and Deserts
Keywords: desert, sand, "desert playa", lakebed, humid, arid
Our transcription: A major source of desert sand is "desert playas," lakebeds from more humid times which have long been dry.
Geology School Keywords
U.S. Department of the Interior | U.S. Geological Survey URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/20.01.17.html Page Contact: InfoBank staff Page Last Modified: Tue Dec 16 06:32:15 PST 2008 (wcs)