鞍山地区磁异常研究及找矿远景分析  

Research on Magnetic Anomalies and Analysis of Ore-searching Prospects in Anshan Area

作　　者：李庭旺 王永良 李畅 LI Tingwang;WANG Yongliang;LI Chang(Liaoning Metallurgical Geological Exploration and Research Institute Co.,Ltd,Anshan 114038,China)

机构地区：[1]辽宁省冶金地质勘查研究院有限责任公司,辽宁鞍山114038

出　　处：《矿业工程》2023年第5期6-10,共5页Mining Engineering

摘　　要：从鞍山地区磁异常的总体特征入手将磁异常划分为三个成矿带,针对南北成矿带开展了详细的磁源分析、磁性体边界划分、正演计算及磁异常与“鞍山式”铁矿对应关系研究,得出南北异常带和东西异常带磁异常均由磁铁矿引起的结论,并且具有规模大、连续性好、向下延深大的特点。根据此异常特征预测深部铁矿资源量潜力巨大,对该区域深部铁矿找矿方向和矿山远景规划具有一定的指导意义。Given the overall characteristics of magnetic anomalies in the Anshan area,magnetic anomalies are divided into three metallogenic belts.Detailed magnetic source analysis,magnetic bodies boundary delineation,forward calculation,and correspondence analysis between magnetic anomalies and"Anshan type"iron ore deposits have been conducted on the north-south metallogenic belts.It is concluded that the magnetic anomalies in the north-south and east-west anomaly belts are caused by magnetite and the magnetite is characterized by its large size,good continuity and great downward extension.Based on the characteristics of the anomalies,it is predicted that the potential for exploring deep iron ore resources is huge,which is of some significance in guiding the direction of searching for deep iron ore and mine long-term planning in this region.

关 键 词：磁异常 水平一阶导数 垂向二阶导数 正演模型 

分 类 号：P618[天文地球—矿床学]