中文摘要：

西藏雄村矿区是南冈底斯成矿带侏罗纪成矿作用的重大找矿突破,目前已发现了Ⅰ、Ⅱ、Ⅲ号铜（金）矿体.为了查明斑岩体矿物学特征与矿化之间的关系,本文以Ⅰ号铜（金）矿体（原雄村铜矿床）含矿斑岩为研究对象,根据电子探针和矿物产出状态分析,Ⅰ号铜（金）矿体含矿斑岩中黑云母、白云母、红柱石、金红石皆为热液蚀变的产物,钾长石除少数为岩浆成因外,多数为热液成因.石英闪长玢岩发育大量的深成磁黄铁矿,未见硬石膏结晶、钛铁矿含量大于磁铁矿、斑岩体中磷灰石SO3含量低（≤0.03％）、成矿流体富CH4等证据显示雄村Ⅰ号铜（金）矿体岩浆-流体氧逸度低,可能为还原性斑岩型铜矿床.利用金红石的Zr温度计计算出金红石的结晶温度为622～762℃,该温度反映了钾硅酸盐化蚀变中晚期温度.金红石中V2O5含量平均值0.42％、粒度较大,黑云母富镁、富钾、贫钙、高氟等特征指示了较好的铜矿化.

英文摘要：

The discovery of the Xiongcun ore district is an important ore-prospecting breakthrough for Jurassic mineralization in the southern Gangdise metallogenic belt, Tibet. The No. Ⅰ , No. Ⅱ and No.Ⅲ copper-gold deposits were discovered in the Xiongcun ore district. In order to find out the relationship between porphyry mineralogical characteristics and the mineralization, the authors chose the ore-bearing porphyry of No. I deposit as the research object. According to the modes of occurrence and electron microprobe data, biotite, muscovite, andalusite and rutile are products of hydrothermal alteration, whereas the orthoclase is mostly of hydrothermal o- rigin with less magmatic origin. Such characteristics as abundant hypogene pyrrhotite, no anhydrite crystal, predominant ilmenite over magnetite, apatite with low SO3 content （≤0.03 % ） and a large amount of methane in the ore-forming fluid indicate that the oxygen fugacity of the magmatic-fluid is low and the No. Ⅰ deposit of Xiongcun may be a reductive porphyry copper deposit. Temperatures measured by Zr-in-rutile thermometer are 622-762℃, which reflect the crystallization temperature of mtile and the middle-late stage temperature of potassic al-teration. The larger grain sizes and relative enrichment of V2O5 （averaging 0.42 % ） in rutile and higher Mg, K and F with lower Ca in biotite are indicative of high-grade copper mineralization.