航空瞬变电磁及航磁资料在内蒙古阿巴嘎旗地区地质构造探测中的应用  

Application of Airborne TEM and Aeromagnetic Data in Geological Structures Interpretation of Abagaqi Area,Inner Mongolia,China

作　　者：刘波[1,2,3] 骆燕 张伟盟[1,2,3] 陈伟 程莎莎 刘彦涛 LIU Bo;LUO Yan;ZHANG Weimeng;CHEN Wei;CHENG Shasha;LIU Yantao(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang,Hebei 050002,China;CNNC Key Laboratory of Uranium Resources Geophysical Exploration Technology,Shijiazhuang,Hebei 050002,China;Hebei Key Laboratory of Airborne Survey and Remote Sensing Technology,Shijiazhuang,Hebei 050002,China)

机构地区：[1]核工业航测遥感中心,河北石家庄050002 [2]中核集团铀资源地球物理勘查技术(重点实验室),河北石家庄050002 [3]河北省航空探测与遥感技术重点实验室,河北石家庄050002

出　　处：《铀矿地质》2022年第2期345-353,372,共10页Uranium Geology

基　　金：中核集团集中研发项目“龙灿”示范工程科研项目(第二阶段)(编号:中核科发(2018)111号)、中国核工业地质局项目“内蒙古二连浩特地区1:5万航空物探调查”(编号:201811-1)联合资助。

摘　　要：阿巴嘎旗地区位于二连盆地马尼特坳陷中东部,跨及马尼特坳陷和苏尼特隆起两个构造单元,区内大面积覆盖玄武岩被,地面工作相对困难。通过航空TEM(瞬变电磁法)与航磁数据相结合,利用航磁ΔT化极及上延2000 m平面特征在北部坳陷区推断断裂及中基性岩体;利用航空TEM断面电阻率、时间常数、AIIP视电阻率等资料推断中部隆坳分界线以及南部玄武岩覆盖区地质构造的分布情况,取得的成果可以为研究区的铀成矿地质环境研究提供基础资料,结果表明,航空TEM及航磁组合方法是一种有效的地质构造推断解释手段。Located in the west of Xilinhot,the study area covers the Manit Depression and the Sunite uplift.The geology surveying work is relatively difficult because of the basalt cover.Therefore,it is of great significance to find the geological structure and basement for the analysis of uranium mineralization environment.Based on airborne TEM and aeromagnetic△T data reduced to the pole,apparent resistivity section,time constant,AIIP apparent resistivity were calculated respectively to infer the geological structures controling the central uplift-depression boundary and the southern basaltic overburden area.The results showed that the combination method is an effective means of geological structure inference and interpretation.

关 键 词：航空TEM 航磁 地质构造 阿巴嘎旗地区 

分 类 号：P631.325[天文地球—地质矿产勘探]