青岛小珠山花岗岩岩石谱系单位划分及其主要特征

Family Classification of Granites Units and Its Major Characteristics in Xiaozhushan of Qingdao City

摘要:

青岛小珠山花岗岩体为中生代偏碱性侵入岩 ,过去通称小珠山岩体 ,通过 1∶5万区域地质填图 ,将其划分为 1 5个单元 ,划归为大店和崂山两个超单元。对各单元的岩石学、岩石化学、微量元素及稀土元素特征等进行了分析研究 ,认为应属A型花岗岩 ,为燕山晚期之产物

Abstract:

Granites in Xiaozhushan of Qingdao city is Mesozoic monoalkalic rocks, which were named Xiaozhushan rocks before. Through regional geological mapping with the scale of 1∶50,000, they are divided into 15 units which belong to Dadian and Laoshan superunits. Petrological characteristics, lithological characteristics, microelements characteristics, rare earth elements characteristics, evolution rule, origin and emplacement mechanism are studied as well.