地球学报2026，Vol.47Issue(2)：257-274,18.DOI:10.3975/cagsb.2025.081611
湘东南铁石垅铅锌矿床变形序列、控矿构造及找矿方向
Deformation Sequences,Ore-controlling Structures,and Prospecting Directions of the Tieshilong Pb-Zn Deposit in Southeastern Hunan Province
摘要
Abstract
The Tieshilong Pb-Zn deposit is located northeast of the Dongpo polymetallic orefield in southeastern Hunan Province.The ore-bearing faults are majorly in the NE-trending,followed by NW-,EW-,and SN-trending.The study of ore-controlling structures is a weak link in the Tieshilong Pb-Zn deposit,which restricted the understanding for metalloginic regularity and further prospecting direction.Through detailed structural observation and analysis of outcrops and in pits in the Tieshilong deposit,combined with the regional structural characteristics and tectonic evolutions,the authors clarified the deformation sequences,determined the types and attributes of ore-controlling structures,and pointed out the prospecting directions.This study suggests that the research area experienced five major deformation events since the Mesozoic:D1—NEE-to-EW compression which caused the formation of NE-trending dextral strike-slip faults and shear fractures,NS-trending thrust faults,and NS-trending Xishan anticline;D2—NW-SE compression which resulted in NE-trending thrust faults and NS-trending sinistral strike-slip faults and shear fractures;D3—NNW-to-NS compression which led to the development of EW-trending thrust faults,NW-trending dextral strike-slip faults and shear fractures,and NNE-trending sinistral shear fractures;D4—NWW-SEE compression which resulted in the NEE-to-EW-trending dextral strike-slip faults and shear fractures and NW-trending sinistral shear fractures;D5—NE-SW compression which led to the formation of NEE-to-EW-trending sinistral shear fractures.The ore-conducting structures are mainly the NNW-to-SN-trending buried faults located along the axial zone of the anticlines.The main ore-bearing structures are the faults and fractures of different scale,occurrence,and kinematic properties formed during stage D1 to D4.The further prospecting directions within the Tieshilong mining area should focus on the faults within the low-controlled sections of the cores of the Bao'anling anticline and Zhaojia anticlinorium,the thrust faults in the cores of anticlines,and the composite areas of ore-bearing faults with varying orientations.关键词
变形序列/控矿构造/找矿方向/铁石垅铅锌矿/湘东南Key words
deformation sequences/ore-controlling structures/prospecting directions/Tieshilong Pb-Zn deposit/southeastern Hunan Province分类
天文与地球科学引用本文复制引用
曾广乾,张小强,周丽芸,柏道远,杜云,黄建中,朱文兵,曹创华,文春华,陈志超,蒙正勇..湘东南铁石垅铅锌矿床变形序列、控矿构造及找矿方向[J].地球学报,2026,47(2):257-274,18.基金项目
本文由湖南省地质院科技计划项目(编号:HNGSTP202507 （）
HNGSTP202307 （）
HNGSTP202317)、湖南省2025年十大技术攻关项目(编号:2025QK1010)、湖南省自然科学基金项目(编号:2024JJ8366)、湖南省自然资源厅重大科研项目(编号:湘自资科20240102DZ)和国家重点研发项目课题(编号:2023YFC2906405)联合资助. This study was supported by the Science and Technology Program of Geological Bureau of Hunan Province(Nos.HNGSTP202507,HNGSTP202307,and HNGSTP202317),the top 10 Technological Breakthrough Projects in Hunan Province in 2025(No.2025QK1010),Natural Science Foundation of Hunan Province(No.2024JJ8366),Scientific Research Pro-ject of the Department of Natural Resources of Hunan Province(No.20240102DZ),and National Key R&D Program of China(No.2023YFC2906405). （编号:2025QK1010）
