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1 祁连西段大地构造位置（a）和榆树沟山地区地质简图（b）（修改自王洋等，2020） 1.第四系全新统；2.第四系更新统；3.新近系疏勒河组；4.白垩系下沟组；5.侏罗系赤金堡组；6.侏罗系龙凤山组；7.奥陶系阴沟群；8.寒武系黑刺沟组；9.志留纪英云闪长岩；10.志留纪超基性岩；11.花岗闪长斑岩脉/石英脉；12.金矿床；13.断层/角度不整合界线

Fig.1 Tectonic location of western section of Qilian Moutain（a） and geological map of Yushugoushan area（b）（modified after Wang et al.，2020）