摘要
碳酸盐岩系层滑断裂在中国南方古生代地层中广泛分布,是一种重要的控矿和成矿构造。厘定碳酸盐岩系层滑断裂的基本类型、形成机理和控矿作用对相关矿床的找矿具有重要意义。基于层滑断裂所属含矿岩系的岩性组合、构造样式及其与主干断裂的相互关系,初步将层滑断裂划分为4种基本类型,即碳酸盐岩与泥页岩界面+层滑断裂复合型,平行不整合面+层滑断裂复合型,逆冲推覆构造台阶式断层断坡+断坪复合型和陡倾斜主干断层+旁侧缓倾斜层滑断裂复合型,分别总结了不同类型层滑断裂的控矿特征,并列举其典型的矿床实例,讨论了层滑断裂的控矿作用和成矿作用,将层滑断裂的形成过程归纳为层间滑动、层滑断层、叠加断层3个阶段。
The interlayer-slide faults in the carbonate series are widely distributed in the Paleozoic strata in southern China.These faults constitute an important ore-controlling and forming structure.Determining the basic types,formation mechanism,and ore-controlling effects of the interlayer-slide faults is of great significance in the search for related deposits.Based on the lithological combination of the ore-bearing rock series,structural style and the relationship with the main fault,the authors divided the interlayer-slide faults into four basic types:the compound type of carbonate and shale boundary with interlayer-slide fault,the disconformities boundary with interlayer-slide fault,the thrusting nappe structure with stepped ramp and flat,and steeper slope master fault with gently inclined secondary interlayer-slide faults.The ore-controlling characteristics of different types of interlayer faults and typical examples were introduced and the roles of interlayer faults in ore-controlling and metallogenic process was discussed.Three stages of the formation of the interlayer-slide fault were summarized,which are slide fault in interlayer,interlayer-slide fault and superimposed fault.
作者
钱建平
吴正鹏
唐专武
徐磊
贾玉衡
QIAN Jianping;WU Zhengpeng;TANG Zhuanwu;XU Lei;JIA Yuheng(College of Earth Sciences,Guilin University of Technology,Guilin 541004,Guangxi,China)
出处
《地质通报》
CAS
CSCD
北大核心
2020年第11期1850-1857,共8页
Geological Bulletin of China
基金
国家自然科学基金项目《桂林地区碳酸盐岩层滑断裂构造地球化学系统的特征和动力分异机制》(批准号:41263003)
中国科学院地球化学研究所矿床地球化学国家重点实验室开放基金项目《山东焦家金矿带构造控矿规律研究和构造地球化学找矿》(编号:200913)。
关键词
碳酸盐岩
层滑断裂
基本类型
控矿作用
成矿作用
carbonate
interlayer-slide fault
basic type
ore-controlling functions
metallogenesis
