煤田资料“二次开发”在二连盆地铀矿找矿前景分析中的应用  

Application of"Secondary Development"of Coalfield Data in the Analysis of Uranium Prospecting Prospect in Erlian Basin

作　　者：杨彪 陈中山 YANG Biao;CHEN Zhong-shan(Hebei Provincial Bureau of Coal Geology,Shijiazhuang 050085,China;Geophysical Survey Team,Hebei Provincial Bureau of Coal Geology,Xingtai 054000,China)

机构地区：[1]河北省煤田地质局,河北石家庄050085 [2]河北省煤田地质局物测地质队,河北邢台054000

出　　处：《河北地质大学学报》2021年第4期62-66,共5页Journal of Hebei Geo University

摘　　要：自20世纪80年代起,国内在内蒙古二连盆地开展了大量的铀矿相关工作。在对二连盆地区域地质背景分析的基础上,介绍了二连盆地铀矿勘查的进展,阐述了本区区域性编图预测、成矿理论研究、调查评价、放射性测量和重点地段勘查等铀矿工作开展的基本情况。并对以往煤田钻孔资料进行了“二次开发”,从以往地质成果分析、地质构造背景、岩性岩相条件、盆地内水动力及水化学条件、后生改造条件、气候条件、铀源条件以及储矿部位等多个方面进行了铀矿成矿分析,提供了判据。分析了找矿前景和找矿方向,指出了二连盆地铀矿最具有找矿前景的地区,为今后铀矿资源的勘查工作规划、矿产地质调查部署提供重要依据。同时,在新层位、新类型探索和战略远景区加强等方面提出了相应建议。Since 1980s,a lot of uranium related work has been carried out in Erlian Basin,Inner Mongolia.Based on the analysis of the regional geological background of Erlian Basin,this paper introduces the progress of uranium exploration in Erlian Basin,and expounds the basic situation of regional mapping and prediction,metallogenic theory research,investigation and evaluation,radioactive measurement and exploration of key areas.In addition,secondary development has been carried out for the previous coalfield drilling data,from the analysis of previous geological results,geological structure background,lithology and lithofacies conditions,hydrodynamic and hydrochemical conditions in the basin,epigenetic transformation conditions,climatic conditions,uranium source conditions and ore storage locations,the uranium metallogenic analysis provides criteria.This paper analyzes the prospecting prospect and prospecting direction,and points out the most promising areas for uranium exploration in Erlian Basin,which provides an important basis for the planning of uranium exploration and the deployment of mineral geological survey in the future.At the same time,the corresponding suggestions are put forward in terms of new horizon,new type exploration and strengthening of strategic prospect area.

关 键 词：二连盆地 铀矿 找矿前景 “二次开发” 放射性异常 

分 类 号：P532[天文地球—古生物学与地层学]