北祁连榆树沟山金矿区花岗闪长斑岩脉锆石U-Pb年龄、地球化学特征及其地质意义

杨彦,黄增保,郭小刚,许延龙,颜华

Zircon U-Pb Age and Geochemical Characteristics of Granodiorite Porphyry Veins in Yushugoushan Gold Deposit，Northern Qilian Mountain，and Its Geological Significance

Yan YANG,Zengbao HUANG,Xiaogang GUO,Yanlong XU,Hua YAN

图4 榆树沟山金矿花岗闪长斑岩锆石U-Pb年龄谐和图

Fig.4 Zircon U-Pb age concordia diagram of granodiorite porphyry in Yushugoushan gold deposit