胶东地区招平断裂带中-南段断裂与金矿成矿关系研究  

Research on the Relationship between Fault and Gold Mineralization in the Middle-south Section of Zhaoping Fault Zone in Jiaodong Peninsula

作　　者：韦星 计文化 王建田[2,4] 段留安 周发侨 孔国栋 张昌帅 WEI Xing;JI Wenhua;WANG Jiantian;DUAN Liuan;ZHOU Faqiao;KONG Guodong;ZHANG Changshuai(Chinese Academy of Geological Sciences,Beijing,100037;Yantai Center of Coastal Zone Geological Survey,China Geological Survey,Yantai 264000,Shandong,China;Xi’an Center of China Geological Survey,Xi’an 710119,Shaanxi,China;Shandong University of Science and Technology,Qingdao 266590,Shandong,China;Ministry of Natural Resources Technology Innovation Center for Deep Gold Resources Exploration and Mining/Shandong Provincial Engineering Laboratory of Application and Development of Big Data for Deep Gold Exploration,Weihai 264209,Shandong,China)

机构地区：[1]中国地质科学院,北京100037 [2]中国地质调查局烟台海岸带地质调查中心,山东烟台264000 [3]中国地质调查局西安地质调查中心,陕西西安710119 [4]山东科技大学,山东青岛266590 [5]自然资源部深部金矿勘查开采技术创新中心/山东省深部金矿探测大数据应用开发工程实验室,山东威海264209

出　　处：《西北地质》2025年第2期225-239,共15页Northwestern Geology

基　　金：国家重点研发计划“脉状金系统的综合找矿技术与增储示范”课题(2022YFC2903605);中国地质调查局项目“山东招平带南段及外围金多金属资源调查评价”(DD20242575)联合资助。

摘　　要：招平断裂是胶东金矿的重要控矿构造,中-南段是近年来找矿热点地区,笔者在对招平断裂中-南段内金矿成矿特征及断裂构造特征进行系统分析基础上,初步探讨了断裂构造与金成矿之间的关系。蚀变岩型金矿主要赋存在主断裂下盘的绢英岩化蚀变带中,断层缓倾处是成矿的有利部位;石英脉型金矿多呈脉群产出于次级断裂中。蚀变岩型金矿金的赋存状态由浅部向深部,裂隙金、晶隙金占比减少,包体金占比增加。主断裂由中心向两侧发育绢英岩化、硅化、钾化等,且下盘矿化蚀变明显强于上盘。地化剖面显示,Au与Ag、Pb、Bi正相关,且明显受断裂控制。Zhaoping fault is an important ore-controlling structure of Jiaodong gold deposit.The middle-south section is a hot spot for prospecting in recent years.Based on the systematic analysis of the metallogenic characteristics and fault structure characteristics of gold deposits in the middle-south section of Zhaoping fault,this paper preliminarily discusses the relationship between fault structure and gold mineralization. Altered rock type gold deposits mainly occur in the quartz-sericite alteration zone of the footwall of the main fault, and the gentle dip of the fault is the favorable part of mineralization. Quartz vein type gold deposits mostly occur in secondary faults as vein groups. The occurrence state of gold in altered rock type gold deposits is from shallow to deep, the proportion of fissure gold and crystal fissure gold decreases, and the proportion of inclusion gold increases. The main fault develops quartz-sericite, silicification and potassic alteration from the center to both sides, and the mineralization alteration of the footwall is obviously stronger than that of the hanging wall. Geochemical profiles show that Au is positively correlated with Ag, Pb and Bi, and is obviously controlled by faults.

关 键 词：胶东金矿 招平断裂 蚀变岩型金矿 石英脉型金矿 蚀变分带 

分 类 号：P618.51[天文地球—矿床学] P613[天文地球—地质学]