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Bayanzag | Fossil dune with old crusts
WI_mo116.jpg Bayanzag  |  Fossil dune with saxaul Thumbnails Khongoryn Els  |  Dune field

Caliche or gypcrust commonly form near the soil surface in arid and semiarid regions as a result of ascending subsurface water. Harder than the surrounding sands of this fossil dune, they are less susceptible to erosion.

Created
Wednesday 16 July 2014 by Martin Mergili (1280 visits)
Region
Asia / Mongolia