摘要
湖南黄毛江铅锌矿位于南岭东西向构造带中段北缘,大义山岩体西南,是湘南地区重要的成矿带。以黄毛江矿区为例,通过矿区地质工作及综合研究,总结了区内铅锌矿成矿规律,认为区内铅锌矿成因严格受层位和构造控制;棋梓桥组中段Pb、Zn丰度高,后期北东向断裂构造及硅钙面层间滑脱带为含矿气液的运移提供了通道,层间裂隙为矿体的富集提供了容矿空间。控矿因素主要受构造、矿化层及围岩、岩石化学特征等控制。研究结果不仅为矿区铅锌矿的进一步勘探提供了科学依据,对于指导欧阳海-庙前向斜一带铅锌矿找矿突破具有重要意义。找矿标志:棋梓桥组中段细-中晶白云质灰岩、层间破碎带、硅钙面。
The Huangmaojiang lead-zinc deposit in Hunan is situated on the northern margin of the central E-W-trending Nanling structural belt and southwest of the Dayishan pluton,constituting a significant metallogenic zone in southern Hunan.Based on geological investigations and integrated research in the Huangmaojiang mining area,metallogenic patterns of Pb-Zn deposits in this region have been summarized,indicating their genesis is strictly controlled by stratigraphic horizons and tectonic structures.The Middle Qiziqiao Formation exhibits high Pb-Zn abundances,where NE-trending faults and silica-calcite interfacial detachment zones provided conduits for ore-bearing hydrothermal fluid migration,with interlayer fractures serving as ore-hosting spaces.Ore-controlling factors are dominated by structures,mineralized layers,wall rocks,and petrochemical characteristics.These findings not only provide a scientific basis for further Pb-Zn exploration but also guide prospecting breakthroughs along the Ouyanghai-Miaoqian synclinal belt.Prospecting indicators include:fine-to-medium crystalline dolomitic limestone,interlayer fracture zones,and silica-calcite interfaces within the Middle Qiziqiao Formation.
作者
严彦
朱真真
郑国超
YAN Yan;ZHU Zhen-zhen;ZHENG Guo-chao(Hunan Mineral Resources Survey Institute,Chenzhou 423000,China)
出处
《价值工程》
2025年第24期119-121,共3页
Value Engineering
关键词
郴州
黄毛江矿区
控矿因素
找矿标志
Chenzhou
Huangmaojiang mining area
mineral control factors
ore-finding indicator
