钱家店铀矿集区磁放重特征及勘查方向探讨  

Aeromagnetic,Aerial radioactive and Gravitational Feature and Exploration Direction in Qianjiadian Uranium Cluster Area

作　　者：张仁红 宁媛丽[1,2] 段晨宇 王正其[3] ZHANG Renhong;NING Yuanli;DUAN Chenyu;WANG Zhengqi(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang,Hebei 050002,China;Key Laboratory of Uranium Resources Geophysical Exploration Technology,CNNC,Shijiazhuang 050002,China;East China Institute of Technology,Nanchang,Jiangxi 330013,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中心(重点实验室),河北石家庄050002 [3]东华理工大学地球科学学院,江西南昌330013

出　　处：《铀矿地质》2022年第1期127-135,共9页Uranium Geology

基　　金：核能开发科研项目“松辽盆地砂岩型铀矿综合预测评价技术研究”(编号:HNKF2018-01)资助。

摘　　要：通过对松辽盆地西南部钱家店铀矿集区及周边航磁、航放、重力资料的处理与综合解释,总结了钱家店铀矿集区区域地球物理场特征,分析了磁、放、重地球物理场与区域构造背景、砂岩型铀成矿地质环境之间的内在联系。通过对具有控矿意义的断裂构造F_(2-1)、F_(5)、Fg_(1)等的重磁场特征分析,探讨了断裂构造与盆地基底断块升降、砂岩型铀矿化之间的成因关系。此外,应用半定量预测技术和地球物理异常信息叠合研究,指出了成矿有利度高值带突出分布的部位,并探讨了今后研究区砂岩型铀矿重点勘查方向。结果表明,航磁、航放和重力三者结合,可有效地指导铀矿勘查方向。Through the processing and comprehensive interpretation of aeromagnetic,aerial radioactivity and gravity data in the Qianjiadian uranium cluster area in the southwest of the Songliao basin,the special regional geophysical background was summarized by analyzing the gravity,magnetic field characteristics along the ore-controlling faults such as F_(2-1),F_(5),and F_(g1),the internal relation of geological environment for sandstone-type uranium mineralization to the geophysical field and the basement block was analyzed and studied,especially the uplift and fall of basement block to sandstone-type uranium mineralization.Through semi-quantitative prediction technology and geophysical anomaly information superimposition research,the distribution area of the high-value belt of favorableness was pointed out,and the key prospecting directions of sandstone-type uranium deposits were also discussed.The results showed that the combination of aeromagnetic,aerial radioactivity and gravity data can effectively guide the uranium exploration work.

关 键 词：地球物理异常场 信息叠合 地球物理场证据 勘查方向 钱家店铀矿床 

分 类 号：P631[天文地球—地质矿产勘探] P619.14[天文地球—地质学]