Halogenases of Qarhan Salt Lake in the Qaidam Basin: Evidence From Halite Fluid Inclusions

The fluid inclusion composition of halite can help track chemical ancient fluids and, thus, serves as a reliable index to analyze brine in salt lakes. Qarhan Salt Lake (QSL) is the largest potash deposit China. Although mixing modern river water and Ca-Cl deep widely accepted potassium formation, characteristics time domain driving factors are still unclear. Here, inclusions primary samples collected from ISL1A borehole QSL was measured by LA-ICP-MS technology. analysis results show that, during formation stage S 4 layer QSL, main layer, contents Ca 2+ Sr increased significantly. There evidence confirming that beneficial enrichment surrounding rivers generally develop terraces. It suggests more inflow northern margin supplies lake, inferring it driven tectonic activities. In addition, shows there an anomaly geochemistry at early QSL. By combining activities, inferred not caused activities but maybe salt-forming event. This work indicates movement have huge impact on evolution Therefore, necessary consider influence lakes when studying paleoclimate using lake deposition.