The tempo-spatial characteristics and forming mechanism of Lithium-rich brines in China  

作　　者：Rui-qin Li Cheng-lin Liu Peng-cheng Jiao Jiu-yi Wang 

机构地区：[1]MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sctences,Beijing 100037,China [2]School of Earth and Space Sciences,Peking University,Beijing 100871,China

出　　处：《China Geology》2018年第1期72-83,共12页中国地质（英文）

摘　　要：With the technological development of exploitation and separation,the primary source of lithium has gradually changed from ore to brine,which has become the main raw material,accounting for more than 80% of the total production.Resources of lithium-bearing brine are abundant in China.This paper has summarized the spatial and temporal distribution,characteristics,and formation mechanism of the lithium-rich brine in China,aiming to provide a comprehensive set of guidelines for future lithium exploitation from brines.Lithium brines usually exist in modem saline lakes and deep underground sedimentary rocks as subsurface brines.The metallogenic epoch of China's lithium-rich brine spans from the Triassic to the Quaternary,and these brines exhibit obvious regional distribution characteristics.Modem lithium-rich saline lakes are predominately located in the Qinghai-Tibet Plateau.In comparison,the subsurface lithium-rich brines are mainly distributed in the sedimentary basins of Sichuan,Hubei,Jiangxi,and the western part of the Qaidam Basin.Lithium-rich saline lakes are chloride-enriched,sulfate-enriched,and carbonateenriched,while the deep lithium-rich brines are mainly chloride-enriched.On the whole,the value of Mg/Li in deep brine is generally lower than that of brine in saline lakes.The genesis of lithium-rich brines in China is not uniform,generally there are two processes,which are respectively suitable for salt lakes and deep brine.

关 键 词：LITHIUM BRINE Sahne lake BRINE formation TIBETAN PLATEAU 

分 类 号：P[天文地球]