亚贵拉Pb-Zn-Ag矿床是冈底斯北侧Pb-Zn多金属成矿带内的一个大型矿床。钻孔编录发现,亚贵拉矿区内棕红色花岗斑岩和灰白色石英斑岩均被大量的含硫化物石英脉穿切。同时,与这两套斑岩直接接触的灰岩地层内同样伴有强烈的硫化物矿化和矽卡岩化。本文采用LA-ICP-MS锆石U-Pb测年技术,对矿区含矿棕红色花岗斑岩和灰白色石英斑岩分别进行了年代学研究,得到两者锆石的加权平均年龄分别为132.1±1 Ma和62.4±0.6 Ma。在钻孔编录过程中未发现典型沉积喷流成因的矿体,而绝大部分矿体以含有大量矽卡岩矿物为特征,表明亚贵拉Pb-Zn-Ag多金属矿床应主要受岩浆热液控制。锆石U-Pb定年结果显示,该矿区首先经历了早白垩世与棕红色花岗斑岩有关的岩浆事件,然后于古新世又受到了与灰白色石英斑岩有关的含矿热液富集沉淀。结合已有研究资料分析可知,冈底斯北带的成矿作用从白垩纪一直持续到中新世,且均以Pb-Zn-Ag等贱金属矿化为特征,显示冈底斯北带古老基底对矿化金属类型的强烈控制。 The Yaquila Pb-Zn-Ag deposit is a large deposit within the Pb-Zn polymetallic metallogenic belt on the northern side of the Gangdise. Borehole cataloging found that both the brown-red granite porphyry and the off-white quartz porphyry in the Yaweila mining area are pierced by a large number of sulfide-bearing quartz veins. At the same time, the limestone formations which are in direct contact with these two sets of porphyries are also accompanied by strong sulphide mineralization and skarnization. In this paper, zircon U-Pb zircon dating technique was used to study the chronology of ore-bearing brown-red granite porphyry and gray-white quartz porphyry respectively. The weighted average ages of the two zircons were 132.1 ± 1 Ma and 62.4 ± 0.6 Ma. No ore deposits of typical sedimentary jet flow were found during borehole cataloging, while most of the ore bodies were characterized by a large amount of skarn minerals, indicating that the Yaquala Pb-Zn-Ag polymetallic deposit should be mainly affected by magmatic heat Liquid control. Zircon U-Pb dating shows that the mine experienced the magmatic events related to the Early Cretaceous and the reddish-brown granite porphyry and was subsequently enriched in ore-bearing hydrothermal fluids related to the gray-white quartz porphyry during the Paleocene precipitation. According to the existing research data, we know that the mineralization of the northern Gangdese belt lasted from the Cretaceous to the Miocene and were characterized by base metal mineralization such as Pb-Zn-Ag. The substrate strongly controls the type of mineralized metal.