Golmud City, Qinghai Province. The full name of Dongjier Lake is Dongtai Jier Lake, which is located in Golmud City, Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Province. Dongtai Jinaier Lake and Xitai Jinaier Lake are located in the same salt flat. Like Dongtai Jinaier River, they receive perennial supply from the lower reaches of Na Ren Guo Le on the northern slope of Kunlun Mountain, with an average annual flow of 33.8 cubic meters per second.
The brine resources of Jinaier Lake in Dongtai City can be divided into lake brine and intergranular brine. The chemical type of brine is magnesium sulfate subtype, and the content of lithium, boron, potassium and magnesium in brine is high and the reserves are large. Lake brine distribution area 1 16km2, water depth 0.6- 1.0m, salinity 33 1.5g/L, relative density 1.2097, and pH 7.7. The salinity of intercrystalline brine is 344.6g/L, the relative density is 1.2255, and the pH value is 7.9. The distribution area of upper intercrystalline brine is 76km2, and the distribution area of lower intercrystalline brine is 9 1- 109km2.