Knowra Salt flat Salt flat A broad, level expanse coated with salt and other minerals, formed when shallow saline water evaporates. Its crust may crack into polygonal patterns and conceal soft sediment beneath.
Evaporite : A sedimentary deposit formed when dissolved minerals precipitate as water evaporates. Salt flats are surface expressions of evaporite accumulation in closed basins.
Salar de Uyuni : A vast salt flat in southwest Bolivia, occupying the floor of the Altiplano's Uyuni basin. Its immense, level crust is among the best-known examples of a salt flat.
Lithium brine : Saline groundwater enriched in dissolved lithium, commonly found beneath some arid basin floors. Brines beneath certain salt flats are mined as a source of lithium.
Endorheic basin : A drainage basin whose water does not flow to an ocean, instead ending in lakes, wetlands, or evaporation. Many salt flats occupy endorheic basins where dissolved minerals accumulate without an outlet.
Salar de Atacama : A salt flat in Chile's Atacama Desert containing lithium-rich brines and diverse wetland habitats. Its extraction pressures focus debate on how brine pumping affects connected water systems.
Brine : Water containing a high concentration of dissolved salts. Brine supplies the dissolved minerals that crystallize as a flat dries.
Bonneville Salt Flats : A salt-crusted remnant of prehistoric Lake Bonneville in western Utah. Its hard, smooth surface makes it a prominent example of a salt flat used for land-speed racing.
Solar evaporation pond : A shallow, engineered pond that concentrates dissolved substances through sunlight-driven evaporation. Industrial ponds reproduce the evaporation process that concentrates minerals in natural flats.
Dust storm : A strong wind event that lifts and transports loose dust and sand. Wind can carry fine salts and sediments from exposed, dry flat surfaces.
Hydrogeology : The study of groundwater, its movement, and its interactions with rocks and surface water. Hydrogeology helps determine how pumping beneath a flat affects distant springs and wetlands.
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