前言解放初期,在鞍山磁异常的基础上曾作了少量面积性的重力工作,得出的结论是:基岩地形起伏可引起重力异常;在鞍山平原范围内没有较大的弱磁性的和非磁性的矿体;根据对李三台子的重、磁剖面进行矿体埋深计算,求得埋深为1000～1500米,这500米的深度差解释为鞍山式铁矿的氧化带.1974年开始为在鞍山区寻找凤化壳型富铁矿,作了将近1000平方公里的1∶20000 Preface The liberation in the early days, based on the magnetic anomalies in Anshan made a small amount of area of ​​gravity work, concluded that: bedrock topography can cause gravity anomalies; in the Anshan plains no large weak magnetic and non According to the calculation of the burial depth of the orebody from the heavy and magnetic profiles of LiSansai, the depth difference is obtained from 1000 to 1500 meters, and the depth difference of 500 meters is interpreted as the oxidation zone of Anshan-type iron ore. Began to look for in the Anshan area phoenix shell rich iron ore, made nearly 1,000 square kilometers of 1: 20000