地学前缘 ›› 2021, Vol. 28 ›› Issue (3): 139-155.DOI: 10.13745/j.esf.sf.2021.1.1

• 三维地质建模与隐伏矿预测评价 • 上一篇    下一篇

栾川矿集区地学大数据挖掘和三维/四维建模的资源-环境联合预测与定量评价

王功文1(), 张寿庭1, 燕长海2, 庞振山3, 王宏伟4, 冯占奎5, 董宏6, 程红涛7, 何亚清8, 李瑞喜1, 张智强1, 黄蕾蕾1, 郭娜娜4   

  1. 1.中国地质大学(北京) 地球科学与资源学院, 北京 100083
    2.河南省金属矿产成矿地质过程与资源利用重点实验室, 河南 郑州 450001
    3.中国地质调查局 发展研究中心, 北京 100083
    4.河南省栾川县自然资源局, 河南 洛阳 471500
    5.栾川中洲九鼎矿业有限公司, 河南 洛阳 471500
    6.中国地质矿业有限公司, 北京 100029
    7.河南众鑫矿业有限责任公司, 河南 洛阳 471500
    8.河南省洛阳栾川钼业集团股份有限公司, 河南 洛阳 471500
  • 收稿日期:2021-01-02 修回日期:2021-01-12 出版日期:2021-05-20 发布日期:2021-05-23
  • 作者简介:王功文(1972—),男,教授,博士生导师,从事三维地质建模与地学信息集成的资源定量预测评价科研工作。E-mail: gwwang@cugb.edu.cn
  • 基金资助:
    国家“十三五”重点研发计划项目(2016YFC0600509);国家“十三五”重点研发计划项目(2016YFC0600107);国家“十三五”重点研发计划项目(2016YFC0600108);中国地质大学(北京)地质调查成果转化基金资助项目(2020—2021)

Resource-environmental joint forecasting in the Luanchuan mining district, China through big data mining and 3D/4D modeling

WANG Gongwen1(), ZHANG Shouting1, YAN Changhai2, PANG Zhenshan3, WANG Hongwei4, FENG Zhankui5, DONG Hong6, CHENG Hongtao7, HE Yaqing8, LI Ruixi1, ZHANG Zhiqiang1, HUANG Leilei1, GUO Nana4   

  1. 1. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China
    2. Key Laboratory of Metallogenetic Processes and Resource Utilization, Zhengzhou 450001, China
    3. China Geological Survey Development Research Center, Beijing 100083, China
    4. Luanchuan County Natural Resources Bureau, Luoyang 471500, China
    5. Luanchuan Zhongzhou Jiuding Mining Industry Co., Ltd., Luoyang 471500, China
    6. China Geology & Mining Co., Ltd., Beijing 100029, China
    7. Henan Zhongxin Mining Co., Ltd., Luoyang 471500, China
    8. Henan China Molybdenum, Luoyang 471500, China
  • Received:2021-01-02 Revised:2021-01-12 Online:2021-05-20 Published:2021-05-23

摘要:

21世纪地球科学的“第四范式”与第四工业时代以及5G+智能通信为矿业开发与环境防护的关联研究提供了新契机。以地球动力学背景、成矿过程、定量评价“三位一体”的地学理论为基础,以栾川矿集区为例,运用地学大数据(多维多尺度的地质、地球物理、地球化学、高光谱与高分辨率遥感(多时相)以及实时矿业等数据)的深层次人工智能挖掘和三维/四维多学科多参数多尺度建模技术平台,开展矿集区至矿床多尺度的三维地质模型、成矿过程模型和定量勘查模型构建及其资源的定量预测评价,旨在实现数字矿山的高精度三维地质(岩石、构造、水文、土壤等)环境保护和资源综合开发利用的动态评价,为研究区矿产资源与矿山环境可持续发展提供科学依据。研究结果概述如下:(1)地球科学大数据关联矿集区资源预测评价。利用三维地质建模、地质-地球物理正反演解译、地球化学与遥感等地学数据深层次挖掘,结合自主研发GeoCube2.0集成软件,实现了栾川矿集区(500 km2,深部2.5 km)的深部靶区优选和矿产资源综合评价,Mo资源量650万t,W资源量150万t, Pb-Zn-Ag累计具有500万t资源量。(2)地质、矿床与勘探的三维地学建模关联矿山环境。南泥湖—三道庄—上房矿山露采场与骆驼山深部巷道勘探与采矿的资料表明,区域NW向的斑岩夕卡岩型矿床与矿体与地下水空间关联度不高,而成矿期后通常具有张性或张扭性特征的NE向断裂是地下水运移的通道;在NW向Pb-Zn矿床地段具有显著淋滤特征的次生金属矿产出,浅表的氧化铅锌矿与锰铁矿伴生孔雀石化、铅华等水蚀作用;高海拔Pb-Zn矿区且NE向断裂构造发育的冷水、百炉沟地段存在地下水污染风险。(3)智慧矿山构建关联资源环境评价与决策。在大型矿山建立三维地质模型并关联矿区古采洞、露采场与深部巷道工程,实现矿业合理定位和可持续发展;利用高光谱数据库构建三维有用、有害元素模型实现勘探、采矿与选矿矿物学关联以便于有害元素(As、Sb、Hg等)的回收或尾矿处理;利用高分辨率Worldview2影像判别重要尾矿库的废水、矿渣泥浆含铁染分布,以便于防护地表径流水、土壤污染等。

关键词: 大数据挖掘, 三维/四维建模, 定量预测评价, 资源环境, 智慧矿山, 栾川矿集区

Abstract:

The “fourth paradigm” of the 21 st century Earth Science, the fourth industrial era and the 5G+ intelligent communication provide mineral researchers with a new opportunity to study the relationship between mining development and environmental protection. This study is based on the geoscientific theory that emphasizes the connections between geodynamic background, metallogenic process and quantitative assessment. Taking the Luanchuan mining district as an example, using geoscience big data (multi-dimensional, multi-scale geological, geophysical, geochemical, multi-temporal hyperspectral/high-resolution remote sensing, real-time mining data) platform, including deep artificial intelligence mining technology as well as 3D/4D multi-disciplinary, multi-parameter, multi-scale modeling technology, we constructed a 3D geological model, a metallogenic process model and a quantitative exploration model at the district and deposit scales, and performed quantitative prediction and assessment of the related mineral resources. The aim was to achieve dynamic assessment of high-precision 3D geo-environmental (rock, structure, hydrology, soil, etc.) protection and comprehensive development and utilization of resources in digital mines, so as to provide a scientific basis for the sustainable mineral resource development in the study area. The research results are summarized in three main aspects: (1) Application of geoscience big data in resource prediction and assessment of district. By mining geoscience big data such as 3D geological modeling, geological and geophysical forward/backward interpretation, geochemical and remote sensing data mining, etc., with use of the self-developed GeoCube2.0 software, deep target optimization and comprehensive mineral resources assessment were achieved for the Luanchuan mining district (500 km2 in area, 2.5 km deep). The predicted Mo, W and Pb-Zn-Ag resources in the mining district were 6.5, 1.5 and 5 million tons, respectively. (2) Three-dimensional geologic modeling of ore deposit and mineral exploration related to mining environment. Field data collected from the Nannihu-Sandaozhuang-Shangfang open pits and the Luotuoshan deep channel mining zones show that the spatial correlation between the NW-trending porphyry-skarn deposit/orebody and groundwater space is not high, and the NE-trending faults—usually tensional or tenso-torsional in the post-metallogenic period—are the pathway for groundwater migration. In the NW-trending Pb-Zn deposit, there are significant secondary metalloid leaching, where shallow Pb-Zn oxides and Mn-Fe minerals are associated with malachite and bloom from water erosion. There is a risk of groundwater pollution in the high-altitude Pb-Zn mining zone as well as in the Lengshui and Bailugou deposits, where NE-trending faults are developed outside of the porphyry-skarn Mo(W) deposits in the study area. (3) Geoscience model construction in intelligent digital mines for resource-environmental joint assessment and planning. A 3D geological model, with relevance to ancient mining caves, open pits, and deep laneways in the mining area, was established for large mines to provide guidance for the mining industry toward sustainable resource development. Using hyperspectral database, 3D models for both useful and harmful mineral elements were constructed to unite the mineral exploration, mining and processing processes in facilitating the recovery of harmful elements (As, Sb, Hg, etc.). And high resolution WorldView-2 images were used to gauge the distribution of Fe-containing pollutants in waste water and slag slurry of significant tailings reservoirs in protecting against surface runoff and soil pollution.

Key words: big data mining, 3D/4D modeling, quantitative prediction and assessment, resource and environment, intelligent mine, Luanchuan mining district

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