Gypcrust

Gypcrete or gypcrust is a hardened layer of soil, consisting of around 95% gypsum (calcium sulfate). Gypcrust is an arid zone duricrust.[1] It can also occur in a semiarid climate in a basin with internal drainage, and is initially developed in a playa as an evaporate.[2] Gypcrete is the arid climate's equivalent to calcrete, which is a duricrust that is unable to generate in very arid climates.[3]

  1. ^ Walker, M.J. (2012). Hot Deserts: Engineering, Geology and Geomorphology: Engineering Group Working Day Report. Geological Society of London. ISBN 9781862393424. Retrieved 7 October 2013.
  2. ^ Britannica, Encyclopedia. "gypcrete". Encyclopædia Britannica, Inc. Retrieved 7 October 2013.
  3. ^ Bell, Fred G. (4 January 2002). Geological Hazards: Their Assessment, Avoidance and Mitigation. Taylor & Francis, 2002. ISBN 9780203014660. Retrieved 7 October 2013.