辽宁鞍山一带第四系覆盖区航磁异常的找矿意义

根据我国钢铁工业快速发展的实际情况,探讨了第四系覆盖区航磁异常的找矿意义。通过对辽宁省鞍山地区1:20万和1:5万航磁数据的处理,提出了1:5万航磁测量ΔT化极上延垂向二次导数正值区可以作为研究铁矿床分布规律一个因素的认识,并参考布格重力异常等资料,认为鞍山一带第四系覆盖区航磁异常具有寻找铁矿床的意义,而且该区铁矿资源潜力巨大。

THE ORE-PROSPECTING SIGNIFICANCE OF AEROMANGETIC ANOMALIES OVER THE QUATERNARY COVER AREA IN ANSHAN, LIAONING PROVINCE

According to the present situation of iron and steel industry in China, this paper has discussed the significance of aeromagnetic anomalies in iron ore exploration. These aeromagnetic anomalies are distributed in Quaternary cover area. Through aeromagnetic data processing, the authors put forward an opinion that the positive vertical quadratic derivative region can be used as a factor for discussing the distribution regularities of ore deposits. Aeromagnetic data and other data such as Bougner anomaly data and geological map data are also discussed. It is considered that these aeromagnetic anomalies can be used in prospecting for iron deposits and that there exist a lot of iron deposits there.