The geochemical simulation of the formation of brine and salt minerals based on Pitzer model was made in Caka Salt Lake. The evolution of the mixed surface-water and the mineral sequences were calculated and compared ...The geochemical simulation of the formation of brine and salt minerals based on Pitzer model was made in Caka Salt Lake. The evolution of the mixed surface-water and the mineral sequences were calculated and compared with the hydrochemical compositions of the brine and the salt minerals of the deposit in Caka Salt Lake. The results show that the formation temperature of the lake is between 0°C and 5°C, which is well identical with other studies. The mixing of salt-karst water with the surface waters, neglected by the former researchers, is very important to the formation of the lake, indicating that the initial waters resulting in the formation of the lake are multi-source. It is the first time to use Pitzer model in China for making geochemical simulation of the formation and evolution of inland salt lake and satisfactory results have been achieved.展开更多
茶卡盐湖(Caka Salt Lake)位于青海省乌兰县境内。茶卡在蒙语、藏语中均意为"盐湖",又名达布逊淖尔。地理位置位于青藏高原柴达木盆地东部,青海湖西56km,都兰湖东47 km。其地理坐标为36°38′5″N-36°45′34″N,98&#...茶卡盐湖(Caka Salt Lake)位于青海省乌兰县境内。茶卡在蒙语、藏语中均意为"盐湖",又名达布逊淖尔。地理位置位于青藏高原柴达木盆地东部,青海湖西56km,都兰湖东47 km。其地理坐标为36°38′5″N-36°45′34″N,98°59′43″E-99°12′25″E(图1,图2)。盐湖湖面海拔3,100 m,面积为139.39 km2(2015年),湖岸线长74.27 km(2015年)[1,2]。展开更多
文摘The geochemical simulation of the formation of brine and salt minerals based on Pitzer model was made in Caka Salt Lake. The evolution of the mixed surface-water and the mineral sequences were calculated and compared with the hydrochemical compositions of the brine and the salt minerals of the deposit in Caka Salt Lake. The results show that the formation temperature of the lake is between 0°C and 5°C, which is well identical with other studies. The mixing of salt-karst water with the surface waters, neglected by the former researchers, is very important to the formation of the lake, indicating that the initial waters resulting in the formation of the lake are multi-source. It is the first time to use Pitzer model in China for making geochemical simulation of the formation and evolution of inland salt lake and satisfactory results have been achieved.
