古钾盐成矿条件和塔里木盆地找钾研究

Potash Deposit Formation Condition and Tarim Basin Potash Deposit Exploration Reasearsh

中文关键词:  钾盐矿床  成矿条件  塔里木盆地  岩相古地理  次级拗陷  海侵

英文关键词:Potash Deposit,Tarim Basin,Lithograph,Geography subordinate,Depression,Transgression

中文摘要:

      我国已发现的钾盐矿床不能满足国民经济发展的需求，寻找新的大型钾盐矿床是一项紧迫的任务，塔里木盆地西部，在地史时期接受多次海侵，且盆地内广泛出露岩盐矿，是一有利的成矿区。古盐湖演化的最后阶段，浓度程度高的卤水汇聚到盆地的次级拗陷中，最后形成钾盐矿床，所以确定盐湖演化阶段盆地的次级拗陷位置对寻找钾盐矿至关重要。在详细查阅和消化前人资料的基础上，结合最近的野外考察认识和室内样品分析的数据，确立库车盆地的拜城一轮台地区和莎车盆地的喀什一和田、乌恰——阿克陶地区为找矿重点区域。

英文摘要:

      China's proved potash deposits cannot meet domestic economic development.Exploring new deposits is an impending task for the geological community.During geological ages,the western Tarim Basin have undergone numerous transgressions,and extensive bare deposit points have been found in the basin.Thus,it is a prospective foreground of potash deposits.In the final phase of saline evolvement,highly concentrated halogen water congregated in the subordinate depression of the basin,hence the potash deposits.Therefore,determining the location of the subordinate depression is of great significance for exploring potash deposits.Based on predecessors' data,recent field investigation and sample analysis,the author(s) confirmed that the Baicheng-Luntai area in Kuche Basin,and the Kashi-Hetian and Wuqia-Aketao areas in Shache Basin serve as good foreground of potash deposits.