离子吸附型稀土矿山生产勘探三维精细化勘查技术——以赣州某稀土矿山为例  

3D Fine Exploration Technology in Productive Exploration of Ionic Type Rare Earth Mine——An Example from Ganzhou

作　　者：陈斌锋 杨斌 张兴文 邹志强 肖文刚 莫火华 吴易国 邓以超 钱艳涛 黄彬 CHEN Bin-feng;YANG Bin;ZHANG Xin-wen;ZOU Zhi-qiang;XIAO Wen-gang;MO Huo-hua;WU Yi-guo;DENG Yi-chao;QIAN Yan-tao;HUANG Bin(The Seventh Geological Brigade of Jiangxi Geological Bureau,Ganzhou 341000,China;Key Laboratory of lonic Rare Earth Resources and Environment,Ministry of Natural Resources,Ganzhou 341000,China;Ganzhou Rare Earth Group Co.,Ltd.,Ganzhou 341000,China)

机构地区：[1]江西省地质局第七地质大队,江西赣州341000 [2]自然资源部离子型稀土资源与环境重点实验室,江西赣州341000 [3]赣州稀土集团有限公司,江西赣州341000

出　　处：《稀土》2023年第6期38-50,I0004,共14页Chinese Rare Earths

基　　金：国家重点研发计划项目(2019YFC0605000);江西省地质局科技项目。

摘　　要：离子吸附型稀土矿主要采用原地浸矿工艺进行开采,但目前关于开采前的生产勘探工作还缺乏成熟的技术方法组合或规范进行指导。在多个稀土矿山生产勘探工作经验的基础上,以定南某稀土矿山的生产勘探工作为例,总结提出了一套高效、精准的离子吸附型稀土矿山生产勘探阶段三维精细化勘查技术方法组合:1∶1000地形测量、1∶1000水文地质测量、1∶1000工程地质测量、赣南钻、机械岩心钻探、原位水文实验、分析测试、高密度电法、三维建模。对采场三维综合地质模型提出了建设要求,包括地貌DTM模型、矿石量、矿石体积、稀土储量、矿体形态三维空间展布、稀土品位三维变化特征、断层构造三维分布、地下水位等内容。上述勘查技术方法组合可获得准确的矿山地质数据,为后续收液工程和注液工程部署提供参考,指导离子吸附型稀土矿山绿色高效开发。Ion adsorption type rare earth ore is an advantageous strategic mineral resource in China, it is mainly mined by in-situ leaching process, the detailed production and exploration work can provide a basis for the subsequent deployment of liquid injection and collection engineering. However, there is still a lack of mature technical method combination or exploration specifications for production exploration. Based on the exploration practice of several rare earth mines, this paper summarizes and puts forward a set of effective and accurate technical methods for fine production and exploration of ionic type rare earth mines: 1∶1000 topographic survey, 1∶1000 hydrogeological survey, 1∶1000 engineering geological survey, Gannan drilling, mechanical core drilling, in-situ hydrological experiment, analysis and test, high-density electrical method and three-dimensional modeling. Finally, the three-dimensional comprehensive geological model of the stope is submitted. The comprehensive model covers the main contents of topographic characteristics, ore quantity, rare earth reserves, spatial morphological distribution of ore body, three-dimensional change of rare earth grade, structural fracture, floor fluctuation, groundwater level and so on. The above summarized production and exploration technical means can obtain accurate mine geological data for the production and exploration of mining enterprises, and provide reference for the green mining of ionic type rare earth mines.

关 键 词：离子吸附型稀土矿 生产勘探 三维建模 勘查技术 风化壳 

分 类 号：P618.7[天文地球—矿床学]