NaCl salt, which is an important substance in the chemical industry and in food preparation, is produced from four main sources: lakes, seas, salt rock and underground salt water.
Salt from lakes has the lowest cost and is of high quality. Turkey is surrounded by the sea in three directions, and salt production from the sea is gaining in importance.
Halite, the natural form of salt, is a very common and well-known mineral. It is found in solid masses, and as a dissolved solution in the oceans and in salt lakes. The inland lakes that are rich in salt exist in arid regions, and may also be below sea level without an outlet.
These lakes evaporate during dry seasons, causing a recession in the water level and an increase of salinity content. When this happens, salt forms on the evaporated shores of the lake.
This also happens as the tributaries of salt lakes are diverted for human and agricultural use, causing the lake to dry up with additional salt forming at the evaporating shoreline. Many of these inland lakes have already dried up, leaving over enormous salt deposits which may be commercially mined.