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

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.

Abstract: 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.