郭家岭花岗闪长岩是胶东金矿区的重要岩体，Rb－Sr全岩等时线年龄为200．6Ma［1］。岩体中常见一种闪长质包体，这些包体具有淬火结构、变余斑状结构及索列特扩散分带，表明它们是由来自地幔的高温玄武质岩浆快速冷凝结晶形成的。包体中存在由辉石→角闪石→黑云母→石英完整的交代系列，反映了包体岩浆受到壳源长英质主岩岩浆不同程度的交代改造。包体的常量元素、微量元素及稀土元素也支持壳幔岩浆相互作用的成因解释。 Guojialing granodiorite is an important rock mass in Jiaodong gold deposit. The Rb-Sr whole-rock isochron age is 200.6Ma [1]. A dioritic protolith is commonly found in the rock mass. These inclusions have a quenched structure, a variegated porphyritic structure and a Sorelian diffusion zone, indicating that they are formed by rapid condensation of high temperature basaltic magma from the mantle. The complete sequence of metamorphism from pyroxene → amphibole → biotite → quartz shows that the inclusions magma were replaced by different degrees of crustal magmatic host rocks. Constitutive elements, trace elements and rare earth elements in the inclusions also support the genesis explanation of the crust-mantle magma interaction.