| 河南栾川西沟铅锌银金矿床三维地质建模与深部找矿预测评价 |
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| 引用本文： | 贾然,王浩然,王功文,王皓,许荣达,冯占奎,宋要武,王肖凌,庞宗. 河南栾川西沟铅锌银金矿床三维地质建模与深部找矿预测评价[J]. 地学前缘, 2021, 28(3): 156-169. DOI: 10.13745/j.esf.sf.2021.1.21 |
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| 作者姓名： | 贾然 王浩然 王功文 王皓 许荣达 冯占奎 宋要武 王肖凌 庞宗 |
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| 作者单位： | 中国地质大学(北京)地球科学与资源学院,北京100083;西南大学地理科学学院,重庆400715;栾川中洲九鼎矿业有限公司,河南洛阳471500;河南省地质调查院,河南郑州450001 |
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| 基金项目： | 中国地质大学(北京)地质调查成果转化基金资助项目(2020—2021) |
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| 摘 要： | 随着矿区浅部矿的日益减少,深部找矿越来越受到重视,三维地质建模技术在成矿预测、资源定量评价等方面得到了广泛的应用.本文利用三维地质建模平台GOCAD中的三维建模技术及地质统计学等方法,基于收集测试得到的地质图、钻孔和采样点的地层、岩性、构造、品位等数据,构建了西沟铅锌银金矿区的三维地质模型,包括断裂构造模型、矿体模型及...
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| 关 键 词： | 三维地质建模 成矿预测 三维品位模型 深部找矿 西沟铅锌银金矿区 |
| 收稿时间： | 2021-02-10 |
Three-dimensional geological modeling and deep prospectivity of the Xigou Pb-Zn-Ag-Au deposit,Henan Province |
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| JIA Ran,WANG Haoran,WANG Gongwen,WANG Hao,XU Rongda,FENG Zhankui,SONG Yaowu,WANG Xiaoling,PANG Zong. Three-dimensional geological modeling and deep prospectivity of the Xigou Pb-Zn-Ag-Au deposit,Henan Province[J]. Earth Science Frontiers, 2021, 28(3): 156-169. DOI: 10.13745/j.esf.sf.2021.1.21 |
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| Authors: | JIA Ran WANG Haoran WANG Gongwen WANG Hao XU Rongda FENG Zhankui SONG Yaowu WANG Xiaoling PANG Zong |
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| Affiliation: | 1. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China2. School of Geography, Southwest University, Chongqing 400715, China3. Luanchuan Zhongzhou Jiuding Mining Industry Co., Ltd., Luoyang 471500, China4. Henan Institute of Geological Survey, Zhengzhou 450001, China |
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| Abstract: | With decreasing shallow mineral ore deposits in mining zones, more attention is paid to deep prospectivity as three-dimensional geological modeling technology becomes widely used in metallogenic prediction and quantitative resource evaluation. Based on geological mapping and drilling as well as geological data on the stratigraphy, lithology, structure and grade of the sampling site, we performed 3D geological modeling and geostatistical analysis using GOCAD to construct the 3D structual, orebody and stratigraphic models of the Xigou Pb-Zn-Ag-Au deposit. On the basis of the constructed geological models, a 3D attribute model of the deposit was constructed using the discrete smooth interpolation and Kriging interpolation methods, and then three prospecting targets in the mining area were delineated and evaluated. The geological knowledge-based 3D modeling study reveals: (1) The favorable indicators for ore prospecting in the Xigou Pb-Zn-Ag-Au deposit are stratum, structure, gabbro and grade. (2) The prediction method based on 3D geological modeling is scientific and effective. (3) The mid and southeast deep areas of the S139 orebody have good mineral prospecting potentials. This paper provides a reference for future breakthroughs in deep prospecting. |
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| Keywords: | 3D geological modeling metallogenic prediction 3D grade model deep prospectivity Xigou Pb-Zn-Ag-Au deposit |
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