摘要
玲珑金矿是我国重要的黄金资源生产基地,而西山矿段是玲珑金矿的主力生产矿区之一。近年来,随着西山矿段资源开发力度的加大,寻找深部隐伏接替资源成为矿山发展的迫切需求。通过对比区域构造和矿体构造特征,发现西山矿段的西部区域与原来主成矿区——东部区域的构造特征存在明显差异。研究发现,108#主矿体受逆断层控制明显,上下盘发生明显位移,其支脉则受张扭性或张性断裂控制,含金支脉多产于张性断裂中。因此,沿108#主脉下盘的张扭性分支构造开展探矿工作,探获盲支脉108支#脉,并通过总结成矿和控矿规律又探获了108支2#脉和108支3#脉,建立并完善了玲珑金矿田108#脉支脉控矿模式。
Due to the long-term mining,the resource crisis in Xishan section of Linglong gold field is becoming more and more serious.The known main veins have been basically explored and mined by pit exploration,finding new resources has become an urgent need for mines.Through regional geological analysis and summary of metallogenic regularity,the veins in the ore-section are sorted out one by one,and it is found that the local geological structure is inconsistent with the regional structural regularity.The researchers selected the 108#vein group with stable overall occurrence but large local changes to study the metallogenic regularity and tectonic movement regularity.Through the study of the movement law of the upper and lower plates of the 108#vein group and the mineralization of 108#vein group,it was found that the main vein of 108#vein is a reverse fault with obvious displacement,while its branch vein 96#,vein 98#and vein 107#are tensile-torsional or tensile faults with no obvious displacement.At the same time,there are obvious differences in mineral structure and mineral composition,so it is speculated that there are a series of structures in the footwall of the western main vein of 108#vein,which are consistent with the structural laws of the branches in the footwall and move downward with the footwall.Therefore,108#blind branches were found in the blind zone prospecting in the speculated area at-50 elevation level of Xishan ore section.The exploration of 108#veins verified the study of this metallogenic regularity and established a branch prospecting model,that is,the upper and lower walls of the main vein of 108#vein have ore-hosting secondary structures corresponding to each other with nearly parallel arrangement and nearly equal spacing distribution,and the blind veins of 1082#veins and 1083#veins were successfully explored by this model.At present,the proven metal amount is 2.4 tons,which prolongs the service life of the mine.It is worth mentioning that after the upper and lower wall branches of 108#main vein w
作者
张顺
生显军
赵红浩
ZHANG Shun;SHENG Xianjun;ZHAO Honghao(Shandong Gold Mining(Linglong)Co.,Ltd.,Zhaoyuan 265400,Shandong,China)
出处
《黄金科学技术》
CSCD
2023年第3期453-463,共11页
Gold Science and Technology
关键词
支脉控矿
构造控矿
成矿环境
盲矿体
资源危机
玲珑金矿
ore-controlling branch vein
ore-controlling structure
metallogenic environment
blind orebody
resource crisis
Linglong gold mine
