内蒙古卫境地区铀矿找矿预测  

Uranium Prospecting in Weijing Area of Inner Mongolia

作　　者：余长发[1] 张元涛 YU Chang-fa;ZHANG Yuan-tao(National Key Laboratory of Remote Sensing Information and Image Analysis Technology,Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京100029

出　　处：《科学技术与工程》2020年第33期13575-13582,共8页Science Technology and Engineering

基　　金：中核集团集中研发项目(LCEQ01);中国核工业地质局生产中科研项目(遥D1705)。

摘　　要：为研究内蒙古卫境地区构造特征及其与铀矿化的关系,在对高分二号(GF-2)卫星数据进行大气校正等预处理的基础上,采用目视解译的方法,对卫境地区进行了构造遥感解译。经过野外查证,并结合已有的地质资料,分析了卫境地区构造分布规律。结果表明:北东-北东东向F 12和北北东向F 11构造与次级近东西向构造、北西向构造等的交汇部位,是卫境地区铀成矿的有利空间。在敖包吐—苏莫查干敖包地区开展了1∶10000γ能谱扫面工作,结果表明:放射性异常主要分布在二叠系大石寨组三段的炭质板岩中,圈定了1处铀矿化异常带以及多处铀矿化异常点,显示该地区具有良好的铀成矿潜力。In order to study the tectonic characteristics and its relationship with uranium mineralization in Weijing area of Inner Mongolia,both the remote sensing technique and visual interpretation were applied to interpret the linear structure with Gaofen-2(GF-2)satellite remote sensing data.Atmospheric correction and another preprocessing were processed on GF-2 remote sensing data before remote sensing interpretation.The distribution regularities of linear structures were got from the field geological examination and the available geological data.The results indicate that the intersecting areas of NE-NEE trending structure F 12 and NNE trending structure F 11 with EW or NW trending structures are the favorable uranium metallogenic regions.Theγspectrum scanning work is carried out in Obotu-Sumochagan Obo area.The uranium anomalies are mainly distributed in the carbonaceous slate of the third member of the Permian Dashizhai Formation,and one uranium mineralization anomaly zone and several uranium mineralization anomalies are delineated.It indicates that this area has good uranium mineralization potential.

关 键 词：遥感解译 γ能谱扫面 铀矿化 找矿预测 卫境 

分 类 号：P627[天文地球—地质矿产勘探]