| 磁法三维建模在龙王沟磁铁矿勘探中的应用 |
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| 引用本文： | 陈炳锦.磁法三维建模在龙王沟磁铁矿勘探中的应用[J].地质与勘探,2021,57(1):146-155. |
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| 作者姓名： | 陈炳锦 |
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| 作者单位： | 汉中西北有色七一一总队有限公司，陕西汉中； 北京铁科工程检测有限公司，北京 |
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| 基金项目： | 陕西省地质勘查基金项目“陕西省略阳县煎茶岭矿田金多金属矿普查”（编号：61201405240）资助 |
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| 摘 要： | 以龙王沟磁铁矿高精度磁测数据为基础，采用小波多尺度分解方法，对化极后的磁法数据进行多尺度分解，通过功率谱法计算小波多尺度分解后的各阶细节异常的场源深度。结合地形、地质及钻孔资料，采用2.5D人机交互反演对磁测剖面上的磁铁矿体进行拟合，利用Golden Software公司开发的Voxler软件，在虚拟三维环境下实现二维小波多尺度分解数据的可视化，建立三维地质体模型，直观的预测磁铁矿体的空间范围和分布形态，实现地质、物探和地上、地下信息一体化集成展示，进行专业分析评价和辅助决策，可以有效的提高地质找矿效果。
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| 关 键 词： | 小波多尺度分解 2.5D人机交互 Voxler 三维地质体模型 磁铁矿 |
| 收稿时间： | 2020/3/31 0:00:00 |
| 修稿时间： | 2020/8/18 0:00:00 |
Application of magnetic 3D modeling to exploration of the Longwanggou magnetite ore deposit, Shannxi Province |
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| Chen Bingjin.Application of magnetic 3D modeling to exploration of the Longwanggou magnetite ore deposit, Shannxi Province[J].Geology and Prospecting,2021,57(1):146-155. |
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| Authors: | Chen Bingjin |
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| Abstract: | This work was based on high-precision magnetic survey data of the Longwanggou magnetite ore deposit. The wavelet multiple-scale decomposition method was used to analyze the magnetic data after polarization, and the source depth of each detail anomaly after multi-scale decomposition was calculated by the power spectrum method. Combined with topography, geology and drilling data, in terms of 2.5D interactive inversion, the magnet orebody was fitted on the magnetic profile data. Using the Voxler software developed by Golden Software Company, two-dimensional wavelet multi-scale decomposition of data visualization was realized in the virtual 3D environment. A 3D geological model was constructed which permitted intuitive prediction of the space range and distribution of ore bodies, thus geology, geophysical prospecting and the ground and underground information integration were displayed in a uniform manner. Finally professional analysis and auxiliary decision were made which can effectively improve the results of geological prospecting. |
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| Keywords: | wavelet multiple-scale decomposition 2 5D interactive inversion Voxler 3D geological model magnetite |
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