采用航磁法普查金伯利岩岩筒型弱异常的目标时,测量效果相对不高,因而难于评价“筒状型”的局部磁异常。正如试验表明,在研究大面积航空磁测结果时可以划分出大量上述类型异常,但要初步评价这些异常则感到困难。为了评价苏联某地区的航磁异常,在实际 When the target of a kimberlite rock type weak anomaly is censored by using the airborne method, the measurement effect is relatively not high, so that it is difficult to evaluate the “tube type” local magnetic anomaly. As the tests show, a large number of these types of anomalies can be classified when studying large-scale aeromagnetic survey results, but it is difficult to evaluate these anomalies initially. In order to evaluate the aeromagnetic anomalies in a Soviet area, in fact