摘要
湘东北幕阜山岩体南部分布有多个铜铅锌矿床,矿床受北东向区域构造控制,岩浆期后热液提供了主要的成矿物质来源;矿床成矿模式可概述为:燕山早期岩浆活动开始,区域北东向断裂开始发育并充填早期岩浆期后热液,形成无矿或矿化较弱的石英脉;燕山晚期,次级北西向断裂开始发育,以岩浆期后热液为主的含矿热液沿及北东向主断裂其次级构造充填,形成中低温热液充填型铜铅锌矿床。幕阜山地区铜铅锌矿找矿应注意在岩体南部舌状凸起地段沿秦家坊断裂及次级张扭性断裂的分枝复合、膨大、断裂面舒缓波状等部位寻找。
There are many Cu Pb Zn deposits in the south of the Mufushan massif in the north of the east of Hunan Province.The deposits are controlled by the ne regional structure,and the post magmatic hydrothermal solution provides the main source of ore-forming materials.The ore-forming model of the deposits can be summarized as follows:the early Yanshan magmatic activity began,the regional NE faults began to develop and fill the post magmatic hydrothermal solution in the early stage,forming quartz vein without ore or with weak mineralization;Yan In the late stage of the mountain,the secondary NW trending faults began to develop,and the ore-bearing hydrothermal fluid dominated by post magmatic hydrothermal fluid filled the secondary structure along and NE trending main faults,forming a medium and low temperature hydrothermal filled Cu Pb Zn deposit.In the exploration of Cu Pb Zn deposits in Mufushan area,attention should be paid to the exploration of the tongue like bulge in the south of the rock mass along the qinjiafang fault and the secondary tension and torsion fault,such as the branch and compound,expansion,and the relief wave of the fault plane.
作者
张立平
徐美玲
曾美强
ZHANG Li-ping;XU Mei-ling;ZENG Mei-qiang(Hunan Nuclear Industry 311 Brigade,Changsha 410100,China)
出处
《世界有色金属》
2020年第5期105-108,共4页
World Nonferrous Metals
关键词
成矿模式
成矿特征
铜铅锌矿
湘东北
metallogenic model
metallogenic characteristics
Cu Pb Zn deposit
northeastern hunan
