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通过对冀东和冀北地区大比例尺(1:25000)航磁梯度资料的分析研究发现,航磁梯度与常规的航磁总场相比,在金矿地质填图中可以更准确地划分不同地层分界、确定火成岩的分布范围以及断裂构造带的平面位置等。总结了金矿床上航磁梯度异常的变化规律。最后,利用包括航磁梯度在内的综合航空物探信息,对冀东渠子地地区进行了金矿预测研究,取得了较好的地质效果。
Through the analysis of the large-scale (1: 25000) aeromagnetic gradient data in Jidong and North Hebei region, it is found that the aeromagnetic gradient can be more accurately classified than the conventional aeromagnetic total field in the geologic mapping of gold deposits Stratigraphic boundaries, to determine the distribution of igneous rocks and the fracture zone of the plane position. Summarizes the variation of the magnetic gradient anomalies in gold deposits. Finally, using the comprehensive aerogeophysical information including aeromagnetic gradient, the gold deposit prediction research is carried out in the Jidong Canal area, which has achieved good geological effects.