| 赣西武功山东缘水系沉积物地球化学特征及找矿远景 |
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| 引用本文：吴正昌,徐喆,楼法生,张芳荣,符海明,王会敏,王迪文,孙超,汪明有,官光辉.2026.赣西武功山东缘水系沉积物地球化学特征及找矿远景[J].地球学报,47(1):179-191. |
| DOI：10.3975/cagsb.2025.071712 |
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| 基金项目:由江西省“科技+地质”联合计划项目(编号: 2023KDG01003)、江西省重点研发计划项目(编号: 20223BBG71015)、中国地质调查局矿产地质调查子项目(编号: 12120115029901)和江西省地质局青年科学技术带头人培养计划项目(编号: 2022JXDZKJRC04)联合资助。 |
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| 中文摘要:赣西武功山地区是江西重要的稀有金属和有色金属矿集区, 成矿地质条件优越, 是有望实现锂、钽、铌、钨等战略性矿产找矿突破的有利地区。文章基于1:5万水系沉积物测量工作成果, 分析研究了赣西武功山东缘元素分布和组合特征及富集离散规律, 及其与成矿地质条件的关系, 圈定了25处综合异常并开展了异常查证工作。经异常查证, 新发现锂、钽铌、金等各类矿(化)点10处, 新发现钽铌矿(化)体4条、锂矿化体1条及金矿体3条。研究认为武功山东缘Li、Ta、Nb、W、Au地球化学异常对找矿指示效果好, 大部分为矿致异常, 主要由研究区蚀变花岗岩型稀有金属矿、微细浸染型金矿、变质碎屑岩叠加构造热液型金矿及石英脉型钨矿成矿过程中形成。异常特征指示, 除已知矿(床)点外, 研究区稀有金属、钨和金矿找矿潜力仍然巨大。依据异常特征, 结合前人研究成果, 在武功山东缘划分了5处找矿远景区, 为该区域战略性矿产靶区优选和下一步地质找矿工作提供了参考。 |
| 中文关键词:水系沉积物 地球化学异常 找矿远景 武功山东缘 赣西 |
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| Geochemical Characteristics and Prospecting Potential of Stream Sediments in the Eastern Margin of Wugong Mountain, Western Jiangxi Province |
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| Abstract:The Wugong Mountain in western Jiangxi Province is an important rare metal and non-ferrous metal ore concen-tration, has superior metallogenic geological conditions, and is favorable for prospecting breakthroughs in strategic minerals such as lithium, tantalum, niobium and tungsten. Based on the results of a 1:50 000 stream sediment survey, this study analyzes the distribution and combination characteristics of elements, enrichment and dispersion rules, and their relationships with metallogenic geological conditions in the eastern margin of Wugong in western Jiangxi Province. 25 comprehensive anomalies were delineated, and anomaly verification work was con-ducted. After anomaly verification, 10 ore (mineralization) points of lithium, tantalum-niobium, gold and other types were newly discovered, and 4 tantalum-niobium ore (mineralization) bodies, 1 lithium mineralized body and 3 gold ore bodies were newly discovered. The geochemical anomalies of Li, Ta, Nb, W and Au in the eastern margin of Wugong Mountain are good indicators of prospecting. Most of these are ore-induced anomalies that mainly formed during the metallogenic process of altered granite-type rare metal deposits, micro-disseminated gold deposits, metamorphic clastic rock superimposed tectonic hydrothermal gold deposits and quartz vein-type tungsten deposits in the study area. The anomalous characteristics indicate that in addition to the known ore (deposit) points, the prospecting potential of rare metals, tungsten and gold deposits in the study area is still huge. According to the anomaly characteristics, combined with previous research results, five prospecting areas are divided in the eastern margin of Wugong, which provides a reference for the optimization of strategic mineral target areas and future geological prospecting work in this area. |
| keywords:stream sediment geochemical anomaly prospecting potential in the Eastern Margin of Wugong Mountain western Jiangxi Province |
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