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本文通过分析华北地台上地球物理场的特点,探讨了与金矿赋存有关的重力梯度带、局部重力低及负磁异常区产生的地质原因,推断了河北北部深断裂构造格架、热液蚀变区及花岗岩类侵入体的分布。结合华北地台上两个著名金矿区的地球物理、地质特点的讨论,说明地球物理场、深部构造和金矿床的关系,从而建立了金矿床成矿的地球物理——地质模型。最后对河北金矿远景区进行了成矿预测。
In this paper, by analyzing the characteristics of the geophysical field in the North China platform, the paper discusses the geological causes of gravity gradient zone, low local gravity and negative-magnetic anomaly zone related to gold deposit, deduces the deep fault tectonic framework in northern Hebei, Fluid alteration zone and granite intrusive body distribution. Based on the discussion of the geophysical and geologic characteristics of two famous gold mines in the North China Platform, the relationship between geophysical field, deep structure and gold deposits is explained, and a geophysical-geological model of gold mineralization is established. Finally, the ore prospecting area of Hebei gold has been predicted.