| 张明君.重磁３Ｄ反演在新疆伊吾县宝山铁矿找矿增储中的应用[J].地质与勘探,2014,50(1):156-161 |
| 重磁３Ｄ反演在新疆伊吾县宝山铁矿找矿增储中的应用 |
| Application of Gravity and Magnetic 3D Inversion to Ore Search and Reserve Increase in the Baoshan Iron Deposit ,Yiwu County,Xinjiang |
| 投稿时间：2012-10-07 修订日期：2012-12-20 |
| DOI： |
| 中文关键词: 宝山铁矿 重磁三维反演 找矿增储 |
| 英文关键词: Baoshan iron deposit, gravity and magnetic 3D inversion, ore search and reserve increase |
| 基金项目:中央级公益性科研院所基本科研业务费专项资金项目（Ｋ１２１７），自然科学基金项目（４１１０４０６１），中国地质调查局地质矿产调
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| 中文摘要: |
| [摘 要] 新疆伊吾县宝山铁矿是一个小型富磁铁矿矿床，经过多年开采浅表矿体开采殆尽，成为危机矿山，找矿增储是延长矿山服务年限的当务之急。本研究在宝山铁矿床开展了超高密度的高精度磁法、重力面积测量，采用重磁三维反演技术，获得了矿区地下密度体和磁性体的三维分布信息。结合地质资料，对反演结果分析解释，认为宝山铁矿深部存在隐伏矿体，选择异常套合较好地段进行钻探验证，发现了隐伏的磁铁矿矿体，缓解了矿山的危机。认为宝山铁矿深部还有较大的找矿空间，同时也证明重磁三维反演在隐伏矿找矿中具有十分广阔的前景。 |
| 英文摘要: |
| Abstract: The Baoshan iron deposit in Yiwu county of Xinjiang is a small-scale but high-grade magnetite mine. This deposit becomes a crisis mine after more than 10 years’ mining for shallow ore bodies. Therefore, expanding reserves has become an urgent problem for prolonging service life of the Baoshan iron deposit. In this study, we conduct high-precision magnetic survey and gravity survey and obtain three-dimensional distribution information of density and magnetic bodies in the subsurface by 3D gravity and magnetic inversion. Combined with geological information, we analyze and interpret the inversion results, and infer that there are concealed ore bodies in the deep part of the Baoshan iron deposit. We choose targets which have geophysical anomalies and verify them by drilling, and find hidden magnetite ores. Through this research, we consider there are still a large potential of the deep prospecting in the Baoshan iron deposit, and that 3D inversion of gravity and magnetic have broad prospects in prospecting of concealed deposits. |
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