| 刘阳生,李立兴,文一卓,许以明,田旭峰,侯茂松,田军委,李文朝.湘南铜锡多金属矿成矿系列与“缺位找矿”实践[J].矿产勘查,2025,16(7):1649-1662 |
| 湘南铜锡多金属矿成矿系列与“缺位找矿”实践 |
| Metallogenic series of Cu-Sn polymetallic deposits in southern Hunan and exploration practices based on the concept of ore-prospecting in ore-vacant-positions |
| 投稿时间：2025-01-05 |
| DOI：10.20008/j.kckc.202507008 |
| 中文关键词: 铜锡多金属矿床 锂铷铌钽矿床 成矿系列 缺位找矿 通天庙岩体，鸡脚山 湘南地区 |
| 英文关键词: Cu-Sn polymetallic deposit Li-Rb-Nb-Ta deposit metallogenic series ore-prospecting in ore-vacant-positions the Tontianmiao rock beed Jijiaoshan southern Hunan |
| 基金项目:本文受湖南省地质院院本级科研项目(HNGSTP202204)，自然资源部新一轮找矿突破战略行动科技支撑项目(ZKKJ202424)和国家重点研发计划项目(2024YFC2909302)联合资助。 |
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| 中文摘要: |
| 湘南地区是中国著名的有色、稀有金属资源基地。本文在湘南地区长期找矿实践及研究成果基础上，依据矿床成矿系列和成矿亚系列概念对湘南地区铜锡多金属矿成矿亚系列进行了重新划分，将与燕山期中浅成酸性花岗岩类有关的稀土、稀有、有色金属及铀矿床成矿系列之钨、锡、铌、钽、铍、钼、铋、铅、锌成矿亚系列按成矿区带细分为 4个亚系列。文章运用成矿系列缺位补位理念，依据成矿系列缺位的 4个类别，对湘南地区铜锡多金属矿进行了区域找矿预测。文章认为:香花岭矿田存在锂矿“矿床类型+成矿元素缺位”、瓦窑头穹隆存在锡钨锂铷铌钽矿田级“成矿空间缺位”、界牌岭—瑶岗仙锡钨锂铷萤石成矿带存在燕山早期第二成矿高峰时段的矿区级“成矿时代缺位”、长策存在云英岩型钨(锡)矿和断裂裂隙充填交代型钨(锡)铅锌矿的缺位、宝山铜多金属矿存在深部源头“成矿空间缺位”、王仙岭岩体存在矿区级矽卡岩型钨锡矿“矿床类型缺位”、枞树板和铁石垅铅锌银矿深部存在锡铅锌“成矿元素缺位”。预测这些缺位类别的补位空间即提供了未来的找矿靶区。文章将原香花岭矿床式升格为与燕山早期中浅成高分异花岗岩有关的锡、钨、铅、锌、锂、铷、铌、钽矿床成矿亚系列，在增加锂、铷主成矿元素后，成功预测了鸡脚山矿区通天庙岩体具有大型蚀变花岗岩型锂铷矿的找矿潜力，经勘探验证，在通天庙岩体上部探获一超大型锂铷矿床，成为在湘南地区运用“矿床成矿系列”理论和“全位成矿，缺位找矿”新理念进行区域找矿预测的典型成功范例，对区域找矿预测具有十分重要的启示意义。 |
| 英文摘要: |
| The southern Hunan region is a well-known as a base of non-ferrous and rare metal resources inChina. Based on extensive exploration practices and research results in this area, we have classified the W-Sn-Nb-Ta-Be-Mo-Bi-Pb-Zn sub-series of the rare earth elements, rare metals, non-ferrous metals and uranium depositsassociated with the Yanshanian period felsic granitoid into four sub-series according to the mineralization zones. Byusing the concept of ore-prospecting in ore-vacant-positions, we conducted regional predictions for Cu-Sn polyme-tallic deposits in southern Hunan based on these four categories of ore-vacant-positions. This paper identifies sev-eral key findings: the Xianghualing ore field exhibits ore-vacant positions related to ore deposit types and ore-forming elements; the Wayaotou dome shows ore-vacant positions of Sn-W-Li-Rb-Nb-Ta deposits at the ore fieldlevel; the Jiepailing-Yaogangxian Sn-W-Li-Rb-F ore belt reveals ore-vacant positions corresponding to the sec-ond peak ore-forming age of the early Yanshanian period; the Changce area is characterized by ore-vacant posi-tions related to greisen-type W-(Sn) deposits and fault-controlled metasomatic W-(Sn)-Pb-Zn ore deposits; theBaoshan Cu polymetallic deposit presents ore-vacant positions in metallogenic space at depth; the Wangxianling in-trusion is noted for ore-vacant positions of skarn-type W-Sn deposits at the ore field level; and the Congshuban-Tieshilong Pb-Zn-Ag ore deposit demonstrates ore-vacant positions linked to ore-forming elements. These missingcategories provides future exploration targets. In this study, we elevated the Xianghualing type to the Sn-W-Pb-Zn-Li-Rb-Nb-Ta sub-series associated with the Yanshanian period highly-fractioned granitoid. After incorporatingthe key ore-forming elements of Li and Rb, we successfully predicted that the Tongtianmiao intrusion in the Jiji-aoshan mining area possesses the potential for large-scale altered granite-type Li-Rb deposits. Consequently, a su-per large-scale Li-Rb deposit was confirmed by drilling verification. This discovery serves as a notable example ofsuccessful exploration breakthroughs directed by metallogenic series theory and the concept of ore-prospecting inore-vacant positions. |
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