云南宁蒗地区喜山期斑岩带岩石化学特征和岩浆来源与成矿  

PETROCHEMICAL CHARACTERISTICS AND MAGMATIC ORIGIN OF THE XISHAN EPOCH PORPHYRY BELT IN NINGLANG AREA AND THEIR METATALLIZATION

作　　者：徐旃章[1] 张寿庭[1] 

机构地区：[1]成都理工学院地质系

出　　处：《矿物岩石》1995年第4期20-29,共10页Mineralogy and Petrology

摘　　要：宁蒗地区喜山期斑岩带为扬子西缘构造活动带喜山期构造—斑岩成矿带的重要组成部分。通过斑岩带斑岩体岩石化学特征等的综合分析研究，得出了岩浆物质源于幔源，并有陆壳组分参与的壳幔混源型岩浆，斑岩体应属含铜斑岩或铜（钼）斑岩。斑岩带具良好的成矿地质条件与前景。The porphyry belt in Ninglang area is important part of the Xishan tectonic-porphyry metallogenic belt of the tectonic active belt in the western edge of Yangzi Based on the study of petrochemical characteristics of the porphyry bodies in the belt,it can be concluded that the mag-metic material originated from mantle and mixed-source model of crust-mantle accompanied with continental crust. The porphyry bodies are copper-bearing or copper-molybdenum porphyry.There are good metallogenic conditions and prospect in the belt.

关 键 词：喜山期斑岩带 岩石化学特征 岩浆物质来源 成矿 

分 类 号：P584[天文地球—岩石学] P612[天文地球—地质学]