Recharge processes limit the resource elements of Qarhan Salt Lake in western China and analogues in the evaporite basins  

作　　者：Hualing SONG Qishun FAN Qingkuan LI Tianyuan CHEN Haotian YANG Chunmei HAN 

机构地区：[1]Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China [2]Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining 810008,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Oceanology and Limnology》2023年第4期1226-1242,共17页海洋湖沼学报（英文）

基　　金：Supported by the Second Tibetan Plateau Scientific Expedition and Research Program(No.2019 QZKK 0805);the National Natural Science Foundation of China(No.U 21 A 2018);the Foundation of Department of Qinghai Science&Technology(No.2020-ZJ-T 06)。

摘　　要：The Qarhan Salt Lake(QSL)in western China is K-Sr-Li-B-Br-Rb multi-resource coexisting Quaternary brine deposits.Significant research efforts have been directed to the origin of K-Li resources and evolutionary history of the QSL.However,the study on the different sources,recharge processes,and differential distribution patterns for these resource elements in brine deposits is still inadequate.Therefore,we measured Li-B concentrations and H-O-Sr-B isotopic compositions of different waters(river,spring,and brine)from the QSL,combined with the reported K-Sr contents and multiple isotopes of waters,to discuss the recharge,source of K-Sr-Li-B and their spatial distributions,by analogy with other evaporite basins in the world.The results show that:(1)the K-Li-B-Sr elemental concentrations of brines and their spatial distribution in the QSL are diverse;(2)high K and Sr values are distributed in Dabuxun and Qarhan sections,respectively,which are controlled by Ca-Cl springs in the northern QSL;on the contrary,Li and B values are enriched in the Bieletan section and are charged by thermal springs in the Kunlun Mountains;(3)the formation and evolution of Ca-Cl and thermal springs constrain fundamentally on the recharge processes of K-Sr and Li-B elements in the terminal salt lakes of the Qaidam Basin(QB);(4)some analogues of recharge processes limit the resource elements of the QSL and other salt lakes(Da Qaidam,Lop Nur,Zhabuye,Atacama,and Guayatayoc)in the world provides a reference for the resource exploration in deep formation waters in the evaporite basins.

关 键 词：K-Sr-Li-B elements differential distribution recharge process Qarhan Salt Lake(QSL) analogue 

分 类 号：P619.211[天文地球—矿床学]