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根据磁性球体水平园柱体在其主剖面垂直断面内ΔT 异常的分布特征,本文提出了用ΔT 极值间的距离与磁性体中心埋藏深度的比值来判断它的体积规模。由于在高原区的航磁测量中的航高很大,以我省内几处产生航磁异常的磁铁矿体的规模与其相应的航高作比较,它们皆可视为有限形体。因此可以根据有限形体产生的磁埸特征为尺度对我省已发现的航磁异常来分类,在今后的航检中侧重检查那些相对具有限形体的异常,可能会提高找矿效果。
According to the distribution of ΔT anomaly in the vertical section of the horizontal cylinder of the magnetic sphere, this paper proposes to determine the volume scale by using the ratio of ΔT extremum to the buried depth of the magnetic body. Due to the high altitude in aeromagnetic surveys in the plateau area, the size of magnetite ore bodies that produce aeromagnetic anomalies in our province can be compared with their corresponding aeronautical heights. All of them can be regarded as finite bodies. Therefore, we can classify the aeromagnetic anomalies that have been discovered in our province according to the characteristics of the magnetic ridges produced by the finite bodies. It is possible to improve the prospecting results by focusing on the inspection of anomalies with relatively limited bodies in the future voyage inspection.