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甘肃省阳山金矿带是我国目前已发现的规模比较大的金矿床之一。该矿带全长约25km,自西向东由泥山、葛条湾、安坝、高楼山、观音坝和张家山矿段等六个矿段组成,其中规模最大的两条矿脉305#和314#位于安坝矿段。在前人研究的基础上,重点分析了阳山金矿带安坝矿段第17号勘探线的7个钻孔剖面,观察了岩性、矿化和结构特征。综合研究表明,该勘探剖面总体为一褶皱构造,转折端处于剖面北侧。该区的强烈变形变质作用后形成了大量的破碎带,安坝矿段的主矿体就赋存在这些破碎带中。
The Yangshan Gold Belt in Gansu Province is one of the relatively large-scale gold deposits that China has discovered so far. The ore belt is about 25 km in length and consists of six ore sections from Nishan to Gezhan Bay, Anba, Gaoluoshan, Guanyinba and Zhangjiashan ore mines from west to east. Among them, the two largest ore mines, 305 # and 314 # Anba mine section. Based on the previous studies, the seven drill sections of No. 17 exploration line in the Anba ore section of Yangshan Gold Mine are analyzed, and lithology, mineralization and structural features are observed. Comprehensive study shows that the exploration profile is generally a fold structure, turning point in the north side of the profile. After the strong metamorphism and metamorphism in this area, a large amount of crushed zone was formed. The main ore body of Anba ore section was deposited in these crushed zones.