胶东埠上金矿区煌斑岩与金矿的关系

为揭示胶东埠上金矿区煌斑岩与金矿的内在关系及成因，在地质学、岩石学研究的基础上，利用湿化学分析法、容量法、非水滴定法、分光光度法分析主量元素.采用等离子发射光谱仪、等离子质谱仪、原子荧光光谱仪、原子吸收光谱仪分析微量元素和稀土元素.通过本次研究发现区内煌斑岩及金矿具有密切的同源关系，均来源于Ⅰ型富集地幔源区，只是金矿混染了壳源的物质成分.结合大地构造特征，认为本区煌斑岩来源于Ⅰ型富集地幔岩浆区的浆体，金矿来源于Ⅰ型富集地幔岩浆区的易挥发并具氧化性的气液成矿流体.显示本区金矿成矿具有深成性、多地性、多期性及多样性等特征.

RESEARCH ON THE RELATIONSHIP BETWEEN THE LAMPROPHYRE AND GOLD MINERALIZATION IN BUSHANG GOLD DEPOSIT,EASTERN SHANDONG PROVINCE

In order to reveal the inner relations and origins of the lamprophyre and gold ores in the Bushang gold deposit in Eastern Shandong Province, on the basis of geological and petrological researches, the authors adopt wet-chemical approach, volumetric method, non-aqueous titration and spectrophotometry to analyze major elements, with IPS-AES, ICPMS, AFS and AAS methods for trace elements and rare earth elements. Study shows that the lamprophyre and gold ore are both derived from the I-type enriched mantle source (EMI), although the gold ore is mixed with crustal source material. According to the tectonic features, it is considered that the lamprophyre is from EMI magma, while the gold is from the volatile and oxidable ore-forming gas-liquid fluid of EMI, showing the characteristics of gold mineralization in the area with deep-seating, multi-position, multi-period and diversity.