在我国胶东金矿集区的西北部，大规模金矿床中广泛发育基性脉岩群，并与金矿脉有密切联系。基性脉岩与金成矿的关系一直比较模糊，主要争议在于基性脉岩岩浆是否为大规模金成矿提供成矿物质和成矿流体。申请在长期研究中发现，胶西北发育不同时期（成矿前、成矿期和成矿后），以及不同类型（洋岛型和岛弧型）基性脉岩。系统研究不同时期、不同类型基性脉岩原始岩浆本质特征，将会更加直接地、全面地约束基性脉岩与金矿的关系。基于此，本项目拟选取胶西北玲珑金矿中基性脉岩与矿体为研究对象，通过野外地质考察、地球化学和矿物学研究，确定玲珑金矿基性脉岩与金矿脉时空关系；分析原始岩浆挥发份和氧逸度的组成和演化特征，进而约束基性脉岩岩浆是否为金矿化提供部分成矿流体。本项目将会为胶东半岛金矿床成因研究提供新的证据。

A large number of the mafic dykes spread in the gold deposits of northwestern Jiaodong gold concentration areas of China, and closely link with gold veins. However, the relationship between mafic dykes and gold deposits is still obscure, such as whether the mafic dykes magma provided the fluids and/or materials for gold mineralization. The author has found the different period (e.g. pro-, syn- and post-mineralization) and different type (e.g. Arc-like and OIB-like dykes) mafic dykes emplaced into the northwestern Jiaodong. If we choose those dykes as the object of the study and explore the nature of primitive magma, which will support the direct and effective proofs. In view of this, this project plan to conduct detailed field researches, geochronology, isotopic geochemistry and mineralogy on the mafic dykes and gold ore from Linglong gold field, northwestern Jiaodong, identifying that the temporal relationship between them and that magmatic oxygen fugacity and volatiles of the different period and type mafic dykes, constraining whether the mafic dykes magma provided the fluids and/or materials for gold mineralization. This project will provide new think and proof for the study on genesis of gold deposits in Jiaodong Peninsula.