应用地球物理方法研究撞击坑

陨石的撞击作用使靶岩形成一个特殊的地球物理场，具有低密度、低电阻率、低速度、磁力异常等不同于周边的岩性。因此，可利用重力、电法、磁法、地震等地球物理方法探测撞击坑的形态特征和寻找新的冲击构造。

RESEARCH ON IMPACT CRATERS WITH GEOPHYSICAL APPROACHES

Impact is a factor leading to the formation of a special geophysical field in the target rock, whichis characterized by low density, low resistance, low velocity, magmatic anomaly and gravity anomaly.All these characteristics are quite different for those of the surrounding rocks. Therefore, one canmake use of gravity, electric method, magnetic method and earthquake and other geophysical approaches to investigate the shapes of impact craters and search for other new impact structures.