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EntityQ935277· pop 38· linked from 452 articles

Also known as salt flat, salt pan (geology), alkali flat, salina, alkali land, kavir (Persian)

flat expanse of ground covered with salt and other minerals

Wikidata facts

Subclass of
dry lake
Image
Giulia on wet Salar de Uyuni Bolivia Luca Galuzzi 2006.jpg
Show 5 more facts
Commons category
Salt flats
topic's main category
Category:Salt flats
different from
salt evaporation pond
OpenStreetMap tag
natural=sand
Sources (3)

via Wikidata · CC0

~3 min read

Encyclopedic overview

The Salar de Uyuni, in Bolivia, the world's largest salt pan. Natural salt flats or salt pans are flat, open expanses of ground covered with salt and other minerals, usually shining white under the sun. They are found in deserts and are natural formations (unlike salt evaporation ponds, which are artificial).

A salt flat forms by evaporation of a water pool, such as a lake or pond. This happens in climates where the rate of water evaporation exceeds the rate of precipitation — that is, in a desert. If the water cannot drain into the ground, it remains on the surface until it evaporates, leaving behind minerals precipitated from the salt ions dissolved in the water. Over thousands of years, the minerals (usually salts) accumulate on the surface. These minerals reflect the sun's rays and often appear as white areas.

Excerpted from Wikipedia’s “salt pan” article, available under the CC BY-SA 4.0 licence.