崂山花岗岩复式岩基的岩石谱系单位划分及成因演化

LITHODEMEC DIVISION AND GENERATION OF COM-POSITE BATHOLITH oF THE LAOSHAN GRANITES

摘要:

青岛崂山花岗岩具有成分和结构演化的特点。本文依据同源岩浆演化理论，应用岩石谱系单位划分方法，将组成该复式岩基的３６个侵入体划分为１０个单元，分别归并为浮山、石门山和崂项三个超单元，同属崂山超单元组合。通过对其地质学、岩石学、岩石化学、地球化学及同位素地质年代学等特征的研究，认为它们具有相同的起源，是在同一构造事件影响下，下地壳变质火成岩有间断地发生了三次熔融事件的产物。早期为Ｉ型花岗岩，晚期演化为Ａ型花岗岩。

Abstract:

Laoshan granites in Qingdao are featured by compositional and structiural evolution,Based on the theory of comagatic evolution and on the lithodemic division,the authors have divided the Laoshan granites into 1 0 unites which are then grouped into the Fushan,Shimenshan and Laoding superunites.Study of the geology petrology,petrochenisty,geochemistry and isotopic geoch r on ology,a has sh own that these granites have the sam e or igin,The Metamor phiosed magmatic rocks at the base of the earth s crust in th...