摘要
通过对金华山矿区构造控矿规律研究,认为矿区矿脉主要受两条主干断裂之间的岩桥构造控制,主断裂旁侧的引张区控矿,南西向侧伏的断裂构造控矿,北北东走向的断裂构造控矿。在成矿期,两条北东向主干断裂左行剪切,从而产生北北东向挤压和北西西向拉伸,使两主断裂面间所挟持的几组北北东走向的次级断裂张开成矿。
Based on the investigation of structural ore-controlling regularity in Jinhuashan gold field,this paper proposes that the ore veins are controlled by the rock bridge between two main faults,the ore bodies are controlled by extension region beside the main faults,by SW lateral trending fault structure and NNE trending fault structure.In the metallogenic period,two main NE faults form NNE compression and NWW tensile after left-lateral shearing,which makes several groups of secondary faults in NNE trending direction open to be mineralized.
出处
《有色金属（矿山部分）》
2012年第2期58-62,共5页
NONFERROUS METALS(Mining Section）
基金
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(200913)
有色及贵金属隐伏矿床勘查教育部工程研究中心项目(教技函[2007]72号)
关键词
岩桥构造
断裂
雁列脉
找矿预测
rock bridge structure
fault
echelon vein
prospecting forecast
