重、磁剩余异常组合的地质意义及其在野外路线地质调查中的应用  

GEOLOGICAL MEANING AND APPLICATION OF GRAVITY-MAGNETIC RESIDUAL ANOMALY COMBINATION IN GEOLOGICAL SURVEY

作　　者：时建民[1] 石绍山 吴新伟[1] 高铁[1] 杨宏智[1] 张丽[1] 宋万兵 陈婷玉[1] SHI Jian-min;SHI SHao-shan;WU Xin-wei;GAO Tie;YANG Hong-hi;ZHANG Li;SONG Wan-bing;CHEN Ting-yu(Shenyang Center of Geological Survey,CGS,Shenyang 110034,China)

机构地区：[1]中国地质调查局沈阳地质调查中心

出　　处：《地质与资源》2020年第1期53-60,共8页Geology and Resources

基　　金：中国地质调查局项目“黑龙江嫩北农场幅（M51E016023）、嫩北农场四队幅（M51E016023）深部矿产地质调查”（编号DD20190156-1)

摘　　要：从认识重、磁异常的物理意义及形成重、磁异常的地质因素出发,分析了地质调查路线所见岩石与路线经过的重、磁剩余异常及重-磁剩余异常组合的对应关系.调查结果揭示了重-磁剩余异常组合所反映的地质作用的特点,加深了认知异常地质体的成生、改造特征,总结出重-磁剩余异常4个组合8种排列方式的地质意义.Based on the physical meaning and geological implication of gravity and magnetic anomalies,the geological factors to form the gravity and magnetic anomalies are discussed.The correspondence between the rocks and the residual gravity and magnetic anomalies and their combination are analyzed.The results reveal the characteristics of geological process that is reflected by the combination of residual gravity and magnetic anomalies.With the recognition of the characteristics of formation and reformation of abnormal geological bodies,8 permutations of 4 combinations of gravity and magnetic anomalies and their geological implications are summarized.

关 键 词：重力异常 磁力异常 剩余异常组合 中生代 火山岩区 内蒙古 

分 类 号：P631.1[天文地球—地质矿产勘探] P631.2[天文地球—地质学]