永泰地区早白垩世深成岩体的划分及形成环境  

Classification and Formational Environment of Early Cretaceous Plutonic Masses in Yongtai Area

作　　者：何道金 

机构地区：[1]福建省地质测绘院,福州350011

出　　处：《福建地质》2001年第1期30-36,共7页Geology of Fujian

摘　　要：永泰序列系复式深成岩体 ,由 4个深成岩体、 4 8个侵入体组成。按岩石谱系单位可划分为 3个单元、 2个独立单元及若干亚单元。其形成时代为早白垩世 ,属同熔型花岗岩类。岩体受北北西向及北东东向断裂控制 ,为拉张环境下被动就位。Yongtai stratigraphic sequence is a complex pluton,which is composed of 4 plutonic masses and 48 intrusives.According to the classification criteria of litholineage units,it can be divided into three lithological units,two independent lithological units and some lithological sub units and belongs to the syntectic type of granitoid,the formation time of which is early Cretaceous epoch.The plutons in the surveyed area are controlled by the NNW trending and NEE trending faults and are under a passive faulting in the extension environment.

关 键 词：永泰序列 早白垩世 深成岩体 张拉环境 花岗岩 就位机制 侵入体 

分 类 号：P534.53[天文地球—古生物学与地层学]