摘要
284东金矿是近几年发现的蚀变岩型金矿床,位于内蒙古宝音图金镍铜铁锰等多金属成矿带,赋存于区域性F9断裂与华力西晚期石英闪长岩体断层接触带。F9断裂早期表现为大规模韧性剪切带,后期脆性变形叠加,其与上下盘次级断裂共同组成了金矿控矿断裂系统,主断裂控制了矿区主矿体的规模、形态、产状,上下盘次级断裂和节理裂隙控制了矿区次级矿体的展布及矿化富集,主次断裂“y”字形交汇部位产出金矿床。在分析控矿断裂系统的基础上,指出下步找矿方向主要是已知矿床深部及主次断裂“y”字形交汇部位。
The 284 Dong gold deposit is an altered rock-type gold deposit discovered in recent years,located in the Baoyintu gold-nickel-copper-iron-manganese polymetallic metallogenic belt in Inner Mongolia.It occurs in the contact zone between the regional F9 fracture and the late Variscan quartz diorite fault.The F9 fracture is manifested as a large-scale ductile shear zone at early stage,and undergoes brittle deformation superposition in the later stage.Together with the secondary fractures in the hanging wall and footwall,it forms a gold ore-controlling fracture system.The main fracture controls the scale,morphology,and occurrence of the main ore body in the mining area,while the secondary fracture and joint fissures in the hanging wall and footwall control the distribution and mineralization enrichment of the secondary ore body in the mining area.Gold deposits are produced at the intersection of the"y"-shaped main and secondary fractures.The ore-controlling fracture system is analyzed,and it is pointed out that the next ore prospecting direction is mainly in the deep part of the known deposits and the intersection of the"y"-shaped main and secondary fractures.
作者
汪瑞强
汪涌佳
徐述平
WANG Ruiqiang;WANG Yongjia;XU Shuping(Emergency Management Bureau of Bayannur City,Bayannur 015000,China;284 Dong Gold Mine of Urad Zhongqi Poly Mining Co.,Ltd.,Bayannur 015000,China)
出处
《矿业工程》
CAS
2024年第4期1-5,9,共6页
Mining Engineering
关键词
284东金矿
控矿断裂系统
找矿方向
284 Dong Gold Mine
ore-controlling fracture system
ore prospecting direction
