大地构造运动与钾盐成矿研究简述  

A brief introduction to research on geotectonic movement and potash mineralization

作　　者：梁光河[1,2,3] 徐兴旺 Liang Guanghe;Xu Xingwang(Key Laboratory of Mineral Resources,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029,China;Institutions of Earth Science,Chinese Academy of Sciences,Beijing,100029,China;University of Chinese Academy of Sciences,Beijing,100029,China)

机构地区：[1]中国科学院地质与地球物理研究所中国科学院矿产资源研究重点实验室,北京100029 [2]中国科学院地球科学研究院,北京100029 [3]中国科学院大学,北京100029

出　　处：《化工矿产地质》2021年第1期1-6,共6页Geology of Chemical Minerals

基　　金：第二次青藏高原综合科学考察研究(2019QZKK0806)。

摘　　要：钾盐是重要的工农业生产资料,虽然已经有诸多关于钾盐矿成因的研究,但关于大地构造运动与钾盐成矿的构造背景和成矿模式方面的研究还比较分散。本文首先从钾元素的初始成因出发,梳理出钾盐的物质来源。然后分别从钾盐矿形成的大地构造环境进一步分析在稳定克拉通环境、陆块汇聚环境和陆块裂解环境下的钾盐矿成矿过程,说明包括构造、物质来源和气候三要素都是大陆漂移和大地构造运动的结果。大地构造是钾盐矿形成的最为重要的因素,它控制了盆地的形成,也控制了钾盐的物质来源,还间接控制了蒸发岩沉积过程中陆块的空间位置和气候条件。最后通过印支地块中的呵叻盆地钾盐矿实例,给出了一个钾盐矿多级凹陷预富集成矿模式。结果说明大地构造运动是钾盐成矿的最主要控制因素。Potassium salt is an important industrial and agricultural production material.Although there are many studies on the genesis of potassium salt,the tectonic background and metallogenic model of geotectonic movement and potassium salt mineralization are still scattered.In this paper,starting from the initial causes of potassium,the source of potassium salt is sorted out.Furthermore,the process of potash mineralization in stable craton environment,continent-block convergence environment and continent-block cracking environment is further analyzed from the geotectonic environment forming potash deposit,which shows that the three essential factors,including structure,material source and climate,are the result of continent drift and tectonic movement.Geotectonics is the most important factor in the formation of potassium salt deposit.It controls the formation of basin,the material source of potassium salt,and indirectly controls the spatial position and climatic conditions of continental blocks in the process of evaporite deposition.At last,a pre-enrichment metallogenic model of multi-level depression of potash deposit is given through an example of potash deposit in Khorat basin in Indosinian block.The results show that the geotectonic movement is the main controlling factor of potassium mineralization.

关 键 词：大地构造 钾盐矿 成矿过程 研究简述 

分 类 号：P619.211[天文地球—矿床学]