新疆乌尔喀什布拉克盐矿床地质特征及成因分析  

The geological characteristics and genesis analysis of Uerkashbulake salt deposit in Xinjiang

作　　者：王倪山 杨磊 李兴斌 李篡峰 WANG Nishan;YANG Lei;LI Xingbin;LI Cuanfeng(The 304 th Brigade,Nuclear Industry Geology Bureau of Hunan Province,Changsha 410000,Hunan,China)

机构地区：[1]湖南省核工业地质局三〇四大队,湖南长沙410000

出　　处：《矿产与地质》2021年第6期1083-1088,共6页Mineral Resources and Geology

摘　　要：新疆库米什盐湖盆地内蕴藏着丰富的盐类矿产,主要为石盐矿和钾盐矿,是新疆重要的盐类矿产生产基地。对于库米什盆地内石盐矿的形成机制研究程度较低,矿床成因历来存在很大的争议。结合近两年在乌尔喀什布拉克盐湖盆地的矿产勘查和水文观测以及以往地质勘查资料,总结了乌尔喀什布拉克盐矿的固液相矿体特征。从构造和古地理条件、成矿物质来源、气候条件、封闭条件四个方面详细论述了乌尔喀什布拉克盐湖的成矿机理,认为矿床形成没有经过由淡水—咸水—饱和卤水及浓缩、干枯的过程,是一个固液相并存的陆成湖泊化学沉积与湖沼沉积过渡类型的现代盐湖矿床。对库米什盆地内寻找相似成矿条件的盐类矿床具有一定的指导意义。There are abundant salt mineral resources,mainly rock salt deposits and potash salt deposits in Kumish Salt Lake Basin in Xinjiang.It is an important salt production base of salt mineral resources in Xinjiang.The research degree of formation mechanism of rock salt deposits in the Kumish Basin is relatively lower,and the deposit genesis has always been controversial.Based on the mineral exploration and hydrological observation in the Urqashbulak Salt Lake Basin in the past two years and previous geological exploration data,the characteristics of the solid and liquid orebodies of the Urqashbulak Salt deposit are summarized.The ore-forming mechanism of Urkashbulak Salt Lake is discussed in detail from four aspects of structure and paleogeographical condition,metallogenic material source,climatic condition and sealing condition.It is considered that the deposit formation did not go through the concentration and desiccation process of freshwater-saltwater-saturated brine.It is a modern salt lake deposit with the coexistence of solid and liquid phases of the over-type of terrestrial lake chemical deposition and lacustrine deposition.There is a guiding significance for the exploration for salt deposits with similar mineralization condition in the Kumish Basin.

关 键 词：石盐矿 乌尔喀什布拉克盐湖 矿床特征 矿床成因 新疆 

分 类 号：P619.21[天文地球—矿床学]