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序言在已勘探的磁铁矿矿区,常常需要判断在已控制矿体的深部或旁侧是否还有未被查明的盲矿体存在.作为物探问题,就是要从实测场中减去由已知矿体引起的异常,研究是否还存在“剩余异常”(未被控制的磁性体的异常).假如能够同时提供已知矿体的形态及准确的磁性资料,这一问题本来是很容易解决的,但在多数情况下,由于很难给出准确的磁性资料,因而常常遇到许多实际困难.
Preface In the magnetite exploration area, it is often necessary to determine whether there are undetected blind ore bodies in the depths or by the side of the controlled ore body. As a geophysical problem, it is necessary to subtract from the measured field Knowing the anomalies caused by the orebody and investigating whether there are still “remaining anomalies” (anomalies in the uncontrolled magnetism) would have been a problem if we were able to provide both the morphology of the known orebody and the accurate magnetic data Easy to solve, but in many cases many practical difficulties are often encountered because it is difficult to give accurate magnetic data.