Lacustrine evaporite systems operate in closed drainage basins in arid to hyper-arid climatic zones. Elements present in meteoric surface, ground, and geothermal recharge water are concentrated by evaporation. As salinity increases, evaporite minerals typically precipitate in the following sequence: gypsum or anhydrite, halite, sylvite, carnallite, borate. Nitrates are concentrated in basins that accumulate sea spray. Residual brines enriched in lithium and other elements often accumulate in aquifers below dry lake beds. Li-clay and and -zeolite deposits form where residual brine reacts with lake sediment, ash layers or volcanic rocks.