Brine rejection that drains from the newly formed ice is replaced by a weak flow of relatively fresh water, from the liquid region below it. The new water partially freezes within the pores of the ice, increasing the solidity of the ice. As sea ice ages and thickens, the initial salinity of the ice decreases due to the rejection of brine over time [Fig. 2]. While the sea ice ages, desalinization occurs to such a degree that some multiyear ice has a salinity of less than 1 PSU. This occurs in three different ways: Brine rejection occurs in the sea ice packs
History of salt the salt. In solution mining the salt reaches the surface as brine, from which the water is evaporated leaving salt crystals. Solnitsata, the earliest known town in Europe, was built around a salt production facility. Located in present-day Bulgaria, archaeologists believe the town accumulated wealth by supplying salt throughout the Balkans. Salt was of high value to the Jews, Greeks, Tamils the Chinese, Hittites and other peoples of antiquity. Aside from being a contributing factor in the development of civilization, salt was also used in the military practice of salting the earth by various peoples, beginning with the Assyrians. In