斑岩型矿床是全球最重要的Cu、Au矿床类型之一。相对弧环境，对陆内斑岩矿床的研究目前还很薄弱。陆内高氧逸度（fO2）富水成矿斑岩岩浆的源区特征和形成机制如何？岩浆物理化学条件怎样综合控制矿床的形成？这是制约建立陆内斑岩成矿理论和评价成矿潜力的两个核心但待解的重要科学问题。针对这些问题，本项目选择金沙江-哀牢山-范士版喜山期陆内斑岩带的成矿与不成矿斑岩为主研对象，通过其中更能反映岩浆初始信息的锆石、榍石、磷灰石等副矿物及其原位元素—同位素组成和其它地质地球化学研究，深入揭示陆内高fO2富水斑岩岩浆的源区特征和形成机制，确定成矿与不成矿斑岩成岩物理化学条件（fO2、水含量、硫逸度、Cl/H2O及侵位深度等）的差异及其控制因素以区分成矿与不成矿斑岩，为深入理解陆内斑岩岩浆成矿机制和评价斑岩成矿潜力提供范例。这些问题的解决或认识的深化，对丰富斑岩矿床成矿理论和指导陆内斑岩矿床找矿勘查具有重要意义。

Porphyry deposit is one of the most important Cu-Au deposits types worldwide. Compared with those porphyry deposits formed under arc settings, intra-continental porphyry deposits are poorly constrained. The formation mechanism and source characteristics of ore-related high fO2 porphyries are still unclear, and it is also unclear how the physicochemical conditions controlled ore formation. These unsolved two scientific problems are of vital importance for both establishment of metallogenic theory and evaluation of metallogenic potentials. In order to solve the above scientific problems, both ore-bearing and barren Cenozoic porphyries in the Jinshajiang- Ailaoshan- FanshiPan region are selected in this project. Accessory minerals (such as zircon, apatite, titanite), which are usually thought to be potential indicators of primary information of parent magmas, will be analyzed to obtain their major, trace and isotope compositions. By integrating these geochemical data with other geological and geochemical characters, we attempt to reveal the formation mechanism and source characteristics of ore-related high fO2 porphyries, and ascertain different physicochemical conditions (e.g. fO2, H2O content, fS2, Cl/H2O ratio and emplacement depth) controlling ore formation. Our research will be a typical example to understand metallogenetic mechanism and metallogenic potential evaluation associated with intra-continental porphyry Cu-Au deposits. The research achievements obtained in this project will be of great importance for the establishment of metallogenic theory of intro-continental porphyry deposits, as well as for the exploration for porphyry Cu deposits formed in intro-continental settings.