Salt Ridges, Mojave Desert, California
Salt ridges at Bristol Dry Lake. New minerals such as sodium chloride (table salt) and calcium chloride continue to form today as shallow saline ground water rises towards the surface and evaporates. The salt ridges are formed through expansion and contraction of layers near the surface due to a combination of processes that include heating and cooling, solution by rains, and recrystallization by drying. Playas are common in the Mojave Desert and they reflect the closed or internal drainage of the region.
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