Salt Lake area of Qinghai-Tibet plateau is one of the four salt lake areas in China with abun-dant mineral resources and huge potential ore volume and economic value.The ore-forming mechanism is always the focus of many scholars.Brine samples collected from 37 salt lakes in the Northwest Tibet are analysed.The average Li chloride of surface water of the lakes is 0.19~478.29 mg/L.Dongcuo salt Lake is with ore-forming potential.The surface water with ore deposit Li grade reaches a medium size Li depos-it.In addition the Jiaqiongcuo.Dongbucuo,Bieruozecuo and Rebangcuo lakes are also potential for ex-ploitation.Comprehensive analysis of ore-forming condition of the lake brine shows that the Li ore forma-tion of lake brine in the Northwest Tibet may be closely related to seduction of Neotethy oceanic crust and Indo-Eurasian continent collision.
关键词
盐湖卤水/氯化锂/富矿因素/成矿机理/西藏西北部
Key words
Salt lake brine/Li chloride/enrichment factor/ore-forming mechanism/the Northwest Ti-bet