How has evaporation helped create salt pans in the Kunlun Mountains?

In the Kunlun Mountains, the formation of extensive salt pans is a direct result of high evaporation rates acting upon snow and glacial meltwater.1

Because the region is characterized by internal drainage and an extremely dry climate, the water flowing from the mountains does not reach the ocean. Instead, as this meltwater collects in basins, the high rate of evaporation causes the water to diminish, leaving behind concentrated mineral deposits. When lake or meltwater becomes saturated with dissolved minerals, these substances precipitate out of the solution to form chemical sediments, which include various salts such as halite, gypsum, and carbonates. Over time, this cycle of accumulation and evaporation results in the creation of the salt pans observed in the region.123