| 郭东宝,袁廷鲁,李海亮,陈军,姚珍,周义明.甘肃洛坝铅锌矿数字化矿体三维建模及成矿预测[J].矿产勘查,2024,15(S2):533-547 |
| 甘肃洛坝铅锌矿数字化矿体三维建模及成矿预测 |
| Three-dimensional geological modeling and mineralization prediction in the Luoba lead-zinc deposit，Gansu Province |
| 投稿时间：2024-03-26 |
| DOI：10.20008/j.kckc.2024s2071 |
| 中文关键词: 洛坝铅锌矿 矿化域 数字化地形 数字化矿体 云存储 |
| 英文关键词: Luoba lead-zinc deposit minerialized domain digital terrain digital ore body cloud storage |
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| 中文摘要: |
| 洛坝铅锌矿属特大型铅锌矿床，控矿构造复杂。通过资源储量核实，已圈出矿体 1000余条，剖面间矿体难以对应连接。矿山已有 30余年开采历史，查明控矿构造形态对矿山深部开拓设计和外围探矿工程布置具有重要意义。洛坝铅锌矿数字化矿体三维建模工作是利用《东方矿产资源评估系统》完成的，矿体圈定时引进了地质统计学中矿化域的概念，解决了复杂矿体建模难的问题。将无人机数字化地形、数字化钻孔、数字化矿体融为一体，利用东方软件建立了矿体的三维模型。通过矿体三维建模工作提出洛坝铅锌矿主要受复杂背斜控制，背斜长度 4500余 m，由西向东分别为紧闭倒转背斜、倒转背斜、短背斜、平卧背斜、北翼直立背斜、平缓控矿背斜。通过对矿体三维模型研究，本研究提出洛坝 3个成矿预测区，分别为 Ⅰ号成矿预测区、 Ⅱ号成矿预测区和 Ⅲ号成矿预测区，为矿山外围及深部探矿工程布置提供了可靠依据。 |
| 英文摘要: |
| Luoba lead-zinc mine is a super-large lead-zinc mine. The controlling structures of mineralization are complex，with more than 1000 ore bodies identified during resource reserve verification，and it is difficult to correlate ore bodies between sections. With over 30 years of mining history，understanding the form of controllingstructures is of great significance for the deep development design of the mine and the layout of peripheral explora.tion projects. The three-dimensional modeling work of Luoba lead-zinc mine was carried out using the "Oriental Ore Body Economic Evaluation System"(referred to as the Oriental software). The introduction of the new concept of minerialized domain in geostatistics was used for ore body delineation，solving the problem of difficult modeling of complex ore bodies. The integration of drone digital terrain，digital boreholes. and digital ore bodies was used to establish a three-dimensional model of the ore bodies using the Oriental software. Through the three-dimensional modeling of ore bodies，it was found that Luoba lead-zinc mine is controlled by a complex anticline，with a length of over 4500 meters. The anticline is composed of a tight inverted anticline，an inverted anticline，a flat anticline， a north wing upright anticline，and a gentle ore-controlling anticline from west to east. Based on the study of ore bodies，this report proposes two mineralization prediction zones in Luoba，namely Zone I and Zone II，providing reliable basis for the layout of deep mining and peripheral exploration projects of the mine. |
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