长白山玄武岩覆盖区地质矿产调查综合地球物理解释——以开峰林场地区为例  

COMPREHENSIVE GEOPHYSICAL INTERPRETATION FOR THE GEOLOGICAL AND MINERAL SURVEY IN BASALT-COVERED REGION OF CHANGBAI MOUNTAIN:A Case Study of Kaifeng Forest Farm Area

作　　者：孙剑爽 陈桂虎 张龙 徐磊 张敏[3] 崔雷 SUN Jian-shuang;CHEN Gui-hu;ZHANG Long;XU Lei;ZHANG Min;CUI Lei(Mudanjiang Natural Resources Comprehensive Survey Center,CGS,Mudanjiang 157000,Heilongjiang Province,China;Hohhot Natural Resources Comprehensive Survey Center,CGS,Hohhot 010000,China;Xi’an Mineral Resources Survey Center,CGS,Xi’an 710000,China;Heilongjiang Hagong Graphite Technology Co.,Ltd.,Jixi 158100,Heilongjiang Province,China)

机构地区：[1]中国地质调查局牡丹江自然资源综合调查中心,黑龙江牡丹江157000 [2]中国地质调查局呼和浩特自然资源综合调查中心,内蒙古呼和浩特010000 [3]中国地质调查局西安矿产资源调查中心,陕西西安710000 [4]黑龙江哈工石墨科技有限公司,黑龙江鸡西158100

出　　处：《地质与资源》2023年第4期487-496,393,共11页Geology and Resources

基　　金：中国地质调查局项目“吉林省1∶5万开峰林场(K52E011007)、白西林场(K52E012007)、东岗(K52E012006)、松树镇(K52E012005)幅区域地质矿产调查”(编号12120114038401).

摘　　要：结合长白山玄武岩覆盖区的7条综合物探剖面,利用重力、高精度磁法、可控源音频大地电磁测深、浅层地震勘探等多种物探工作方法,研究和探讨了玄武岩覆盖之下地质体的空间展布、岩性和构造特征,进行了地质填图和找矿方法的有效性试验,并结合工程钻孔加以验证.绘制了玄武岩覆盖区基底推断图和玄武岩厚度等值线图,总结了新生代玄武岩覆盖区区域地质矿产调查的有效工作方法手段.Combined with 7 comprehensive geophysical sections in the basalt-covered area of Changbai Mountains,multiple geophysical exploration methods such as gravity,high-precision magnetic survey,controlled source audio-frequency magnetotellurics(CSAMT)and shallow seismic exploration are used to study the spatial distribution,lithology and structural characteristics of basalt-covered geological bodies.Through geological mapping and validity test of prospecting methods,the results are verified with engineering drilling.Furthermore,the paper draws the inferred map of basement in the basalt covered area and contour map of basalt thickness,and summarizes the effective methods of geological and mineral survey in Cenozoic basalt-covered region.

关 键 词：玄武岩覆盖区 重力测量 高精度磁法 可控源音频大地电磁测深 浅层地震 长白山地区 

分 类 号：P631[天文地球—地质矿产勘探]