蓬家夼金矿与发云夼金矿地质地球化学特征对比研究——兼议层间滑动角砾岩型金矿成矿模式

To compare Pengjiakuang gold deposit with Fayunkuang gold deposit in the geological and geochemical characteristics

蓬家夼金矿和发云夼金矿是一种产出在胶莱拉分盆地东北边缘莱阳组砾岩和胶东群变质岩层的不整合接触带———层间滑动断层带内的新类型金矿。金矿地质及地球化学研究表明 ,蓬家夼金矿和发云夼金矿是属于在相似地质条件下在同一地质作用过程中形成的具有同成因同来源的层间滑动角砾岩型金矿。这种金矿是受拉分盆地边缘层间滑动断层控制的、深源成矿流体与大气降水混合成因的金矿。

The Pengjiakuang and the Fayunkuang gold deposits in the northeast margin of the Jiaolai basin are a new type of gold deposit established recently which are located in the contact zone of the sedimentary conglomerateistics of the Laiyang formation and the metamorphose rock of the Jingshan group.It shows from the geological and geochemical characteristics of the two gold deposit that they belong to the series of the interstratified glide breccia type gold deposits with the same genesis and source which are formed in the similar geological condition.Such kind gold deposits are controlled by interstratified glide fault in the margin of the basin with depth originating mineralizing liquid mixed with precipitation from atmospher as their origin.