穿透性地球化学勘查技术在隐伏砂岩型铀矿调查中的应用研究  

The Research and Application of Deep-penetrating Geochemical Exploration Technology in the Survey of Concealed Sandstone-type Uranium Deposits

作　　者：张必敏[1,2] 王学求[1,2] 徐善法[1,2] 姚文生[1,2] 迟清华[1,2] 刘汉粮[1,2] 韩志轩[1,2] 柳青青[1,2] 严桃桃 窦备 鲁岳鑫 ZHANG Bi-min;WANG Xue-qiu;XU Shan-fa;YAO Wen-sheng;CHI Qing-hua;LIU Han-liang;HAN Zhi-xuan;LIU Qing-qing;YAN Tao-tao;DOU Bei;LU Yue-xin(Key Laboratory of Geochemical Exploration,Ministry of Natural Resources,Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang,Hebei 065000;UNESCO International Centre on Global-scale Geochemistry,Langfang,Hebei 065000)

机构地区：[1]自然资源部地球化学探测重点实验室,中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]联合国教科文组织全球尺度地球化学国际研究中心,河北廊坊065000

出　　处：《地球学报》2020年第6期770-784,共15页Acta Geoscientica Sinica

基　　金：国家重点研发计划项目(编号:2016YFC0600600);国土资源公益性行业科研专项项目(编号:201511034);国家自然科学基金项目(编号:41573044);中国地质科学院基本科研业务费项目(编号:JYYWF20183401)联合资助。

摘　　要：砂岩型铀矿是铀资源的一种重要矿床类型,该类型铀矿一般形成于中新生代盆地当中,常以盲矿、隐伏矿产出,勘查难度较大。我国中新生代盆地面积广大,因此寻找砂岩型铀矿的潜力巨大。目前,砂岩型铀矿勘查主要以物探手段为主,地球化学勘查手段未充分发挥其作用。本文在解释穿透性地球化学勘查技术铀矿勘查原理基础上,重点列举了近几年在我国北方大型含铀盆地开展的技术试验和示范研究案列,在此基础上对各种穿透性地球化学勘查方法进行了梳理。认为穿透性地球化学勘查技术在砂岩型铀矿勘查中可用于圈定远景区、靶区甚至定位矿体,可在利用地物化综合信息找砂岩型矿中发挥其应有的作用。The sandstone-type uranium deposit is an important type of uranium resources and is usually formed in Meso–Cenozoic basins.Because sandstone-type uranium deposits always occur as blind or concealed deposits,the exploration becomes increasingly difficult.In China,the areas of Meso–Cenozoic basins are enormous,so there is great potential in search for sandstone-type uranium deposits.At present,the exploration of sandstone-type uranium deposit is mainly based on geophysical methods,while exploration geochemistry has not played its due role.Based on the explanation of the principles of deep-penetrating geochemical exploration technology for uranium exploration,this paper shows some study cases which were carried out in the major uranium-bearing basins in northern China in recent years,and analyzes the characteristics of different kinds of penetrating geochemical exploration methods.It is considered that the deep-penetrating geochemical exploration technology can be used to delineate the prospecting area and target area and even locate the orebodies,and it can play its due role in the uranium deposit exploration by using the comprehensive information from geological,geophysical and geochemical prospecting.

关 键 词：砂岩型铀矿 隐伏矿 中新生代盆地 穿透性地球化学 

分 类 号：P632[天文地球—地质矿产勘探]