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Mark R. Sweeney, Eric V. McDonald and Christopher E. Markley Alluvial sediment or playas: What is the dominant source of sand and silt in desert soil vesicular A horizons, southwest USA Journal of Geophysical Research: Earth Surface 118

Version of Record online: 20 MAR 2013 | DOI: 10.1002/jgrf.20030

Key Points

  • Aeolian sediments in Av horizons are primarily derived from alluvial landforms
  • Playas are minimal contributors to regional dust in the Mojave and Sonora
  • Av horizons form from both suspended load and saltating aeolian sediments

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