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在强磁区(磁铁矿区、磁性岩体区)开展区调和普查勘探工作时,如何使用地质罗盘进行地质、地形测量,是一个值得研究的问题。现根据学习和工作心得,试作如下探讨。 (一)理论基础及磁偏角的测定在强磁区,使地质罗盘产生测量误差的因素不仅有磁暴和强烈闪电产生的磁场和地磁场,更有磁性地质体(磁铁矿体或磁性岩体)产生的区域性异常磁场。强烈闪电和磁暴产生的
How to use the geological compass for geology and topography measurement is a problem worth studying when carrying out survey and reconnaissance work in the area with strong magnetism (magnetite and magnetite). Now based on learning and working experience, try the following discussion. (A) Theoretical basis and determination of magnetic declination In the magnetic field, the factors that cause the measurement error of the geological compass are not only the magnetic field and the geomagnetic field generated by the storm and intense lightning, but also the magnetic geologic bodies (magnetite or magnetic rock) Generated regional abnormal magnetic field. Strong lightning and magnetic storm produced