西秦岭东段侵入岩的构造成因类型

造山带复杂的地壳组成决定了侵入岩的地球化学特征，侵入岩的分布规律、就位机制受造山过程制约。在综合分析西秦岭东段侵入岩的岩石学、岩石化学、微量元素、稀土元素、稳定同位素地球化学等特征的基础上，提出一个新的侵入岩构造成因分类方案，即造山带侵入岩可分为俯冲碰撞型、陆陆碰撞型、造山期后型、板内裂谷型、板内浅熔型和板内深熔型６类

TECTONIC GENETIC TYPES OF THE INTRUSIVE ROCKS IN THE EASTERN PART OF WEST QINLING

The complicated crustal composition of an orogenic belt determines the control of orogenic processes on the geochemistry,distribution and emplacement mechanism of intrusive rocks.A new tectonic genetic classification of intrusive rocks was put forward on the comprehensive anal ysis of the characteristics of petrology,petrochemistry,microelements,rare earth elements,and stable isotopic geochemistry of the intrusive rocks in the eastern part of west Qinling.The intrusive rocks in an orogenic belt can be classified into 6 types,i.e.subduction collision type,continent continent collision type,postorogenic type,intraplate rift type,intraplate shallow level fusion type and intraplate deep level fusion type.