里德尔剪切构造对山东鑫泰金矿的控制作用及其找矿意义  

Controlling effect of Riedel shear structure on Xintai gold deposit in Shandong Province and its prospecting significance

作　　者：李欢 朱博文 谢一鸣 陈原林 徐俊杰 魏兴亮 吴晨曦 秦余端 蒋永芳 LI Huan;ZHU Bowen;XIE Yiming;CHEN Yuanlin;XU Junjie;WEI Xingliang;WU Chenxi;QIN Yuduan;JIANG Yongfang(Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Ministry of Education,School of Geosciences and Info-Physics,Central South University,Changsha 410083,China;Shandong Yantai Xintai Gold mining Co.,Ltd.,Yantai 265147,China;School of Resource and Environmental Engineering,Guizhou Institute of Technology,Guiyang 550003,China;Hunan Geosun Hi-technology Co.,Ltd.,Changsha 410208,China)

机构地区：[1]中南大学地球科学与信息物理学院,有色金属成矿预测与地质环境监测教育部重点实验室,长沙410083 [2]山东烟台鑫泰黄金矿业有限责任公司,烟台265147 [3]贵州理工学院资源与环境工程学院,贵阳550003 [4]湖南继善高科技有限公司,长沙410208

出　　处：《中国有色金属学报》2025年第1期323-335,共13页The Chinese Journal of Nonferrous Metals

基　　金：国家重点研发计划资助项目(2016YFC0600104);中国黄金集团公司科研项目(WT-DZ2024021)。

摘　　要：鑫泰(龙口-土堆-东刘家)金矿是山东胶莱盆地东北缘重要的金成矿区,控矿构造问题十分复杂,长期以来没有得到解决。本研究对鑫泰金矿地表及坑道控矿断层及主要矿体进行了详细的构造观测及产状要素测量,在对剖面和平面上的里德尔剪切控矿构造进行解析的基础上,对鑫泰金矿区不同走向的矿体进行了成因及应力分析,划分了构造成矿期次,并指出了进一步的找矿方向。结果表明:矿体的形成受至少两期构造的控制,一是早期NW-SE向的挤压兼NE走向的右行走滑,二是晚期NW-SE向的伸展兼NE走向的左行走滑。NW-SE向的挤压和伸展形成了剖面上的里德尔剪切控矿构造,NE走向的右行和左行走滑形成了平面上的里德尔剪切控矿构造。初步探矿验证工作取得了不错效果,表明该构造控矿体系理论值得在胶东及其他地区的剪切构造控矿型金矿床找矿工作中推广和应用。The Xintai(Longkou-Tudui-Dongliujia)gold ore field is an important gold metallogenic area in the northeastern margin of Jiaolai Basin,Shandong Province.The problem of ore-controlling structure of this ore field is very complicated and has not been well solved for a long time.In this study,detailed structural observation and occurrence factor measurement of surface and tunnel ore-controlled faults and main ore bodies in the Xintai gold ore field were carried out.Based on the analysis of the Riedel shear ore-controlling structures on the profile and the plane,the genesis and stress analysis of the ore bodies with different strikes in the Xintai gold mining area were further carried out,the structural metallogenic periods were divided,and the further prospecting direction was pointed out.The results show that the formation of ore bodies is controlled by at least two stages of structures:One is the early NW-SE compression and NE-trending dextral strike-slip,and the other is late NW-SE extension and NE-trending sinistral strike-slip.The NW-SE compression and extension formed the Riedel shear orecontrolling structure on the profile,and the NE-trending dextral and sinistral strike-slip formed the Riedel shear ore-controlling structure on the plane.The preliminary exploration and verification work has achieved good results,which indicates that this theory of structure ore-controlling system is worth popularizing and applied in the prospecting of shear structure ore-controlling gold deposits in Jiaodong and other areas.

关 键 词：金矿床 里德尔剪切 成矿构造 应力分析 成矿预测 

分 类 号：P631[天文地球—地质矿产勘探]