综合物探方法在航磁查证中的应用——以济宁梁山东丁庄铁矿勘查为例

Application of Comprehensive Geophysical Exploration in Aeromagenetic Anomaly Area——Setting Dongdingzhuang Iron Deposit in Liangshan Couty in Jining City as an Example

摘要:

梁山东丁庄铁矿矿床赋存于新太古代泰山岩群山草峪组中，区内矿体总体呈层状，产状与围岩一致，走向为NW—SW，总体倾向SW，倾角为50°，矿体埋深为230～320m。铁矿中全铁平均品位约30.35％，磁性铁平均品位约25.44％。运用磁法、可控源、地震勘探等方法对该区航磁异常进行了查证，并总结了航磁异常查证的工作流程。

Abstract:

Dongdingshan iron deposit in Liangshan county locates in Shancaoyu formation of Neoarchean Taishan group. Ore bodies in this region are overall layered type. Ore occurrence are consist with the rocks. The strike is NW—SW, the overall tendency is SW, inclination is 50°, and the depth of ore bodies are 230~320m. Average grade of total iron is about 30.35%, and average grade of magnetic iron is about 25.44%. By using magnetic, controlled source and seismic exploration surveying methods, aeromagnetic anomalies has been verified, and aeromagnetic anomaly inspection workflow has been summarized as well.