红山铁矿床产于青白口系变质岩中,属低品位大型沉积—变质型磁铁矿床。此类矿床的岩矿石组合中磁铁矿石具有较强磁性,围岩几乎无磁性。矿床的航(地)磁异常一般呈条带状展布,延伸范围较大,且与铁矿层的走向基本一致。当矿体出露或埋深浅时,磁异常连续性好、梯度陡、强度高的单峰异常,并伴有一定的负值异常,当矿床埋藏深度大时,表现为强度不大的低缓异常,是磁测找隐伏矿的地质—地球物理标志。经系统研究矿区以往磁测和勘探资料,提出预测隐伏矿及其赋存的构造有利部位。 The Hongshan iron ore deposit is produced in the Qingbaikou system metamorphic rocks and belongs to a low-grade large-scale sedimentary-metamorphic magnetite deposit. The magnetite ore in the rock ore combination of such deposits is highly magnetic and the surrounding rock is almost nonmagnetic. The magnetic anomaly of the deposit (ground) is generally strip-shaped distribution, extending a larger range, and basically the same direction with the iron ore. When the ore body is exposed or buried shallow, the magnetic anomaly continuity is good, the gradient is steep and the intensity is high, and accompanied by a certain negative anomaly. When the depth of the burial depth is large, it shows as low intensity anomaly , Is a geomagnetic hidden geology - geophysical signs. After systematically studying the magnetic surveying and prospecting data in the mining area, it is proposed to predict the concealed ore and the structurally favorable parts of its occurrence.