关键词: 稀土元素（REE）, 稳定同位素, 同位素年代学, 矿田

Abstract: Yelingtou orefield is in Shaoxing-southeast of Longquan gold，silver，copper，lead，zinc and molybdenum metallogenic belt.There have long been different views about the genesis as metamorphic hydrothermal solution，volcanic thermal，metamorphic hydrothermal solution superposed by volcanic activity，or depositing-reworking types，and there is a rather identical view that copper，lead，zinc and molybdenum metallogeny is related to volcanic activity.The largest gold deposit in Zhejiang in the orefield-Suichang Gold Mine is now a crisis mine，where the exploration work for alternative resource for the crisis mine is being carried out.Through the comparative study on the geochemical data including the rare earths，lead isotope，stable isotope and isotope chronology of the different deposits and geological bodies in the ore field，it is made clear that the metallogeny of Yelingtou orefield was during  82.5～164 Ma，gold-silver deposits were formed during the volcanic activity of Yanshan Period，and the ore-forming is closely related to the multi-stage medium acidic volcanic activity in Yanshan Period.The major points in the exploration and study for alternative resource should be those structures and geological bodies related to volcanic activity.

Key words: Rare earth elements, Stable isotope, Isotope chronology, Ore field