摘要
通过福建东山地区野外地质调查和岩石学、同位素年代学研究,将变形花岗岩划分为3个阶段,晚侏罗世（147.8 Ma、143.9 Ma、144.9 Ma）、早白垩世第一阶段（132.7 Ma）和早白垩世第二阶段（131~115 Ma）;未变形的花岗岩划分为早白垩世第三阶段（104.1 Ma）和晚白垩世。根据岩体侵入先后关系、变形强弱及运动学等特征,与长乐―南澳断裂带构造运动对比研究,讨论了中生代构造持续左行作用下的构造-岩浆活动。
Researching deformed granite in Fujian Dongshan,field geological survey and the research of petrology,rock isotope chronology,the tectono-magmatic activity in this region could be divided into three stages,Late Jurassic（ 147. 8 Ma Ma,Ma,143. 9 143. 9）,the first stage of early cretaceous（ 132. 7 Ma）,and the second stage of early cretaceous（ 131- 115 Ma）. The late early cretaceous（ 104. 1 Ma） and the late cretaceous granite are not deformed. According to the rock intrusion relationship characteristics,and deformation and strength and kinematics,and comparative study on the tectonic movement of Changle-Nan ＇ao fault zone,discusses the Mesozoic tectono-magmatic activity under the action continuous left mevement.
出处
《福建地质》
2015年第4期261-271,共11页
Geology of Fujian
基金
闽台中生代构造-岩浆区区域地质专项调查(编码:12120114043301)
关键词
中生代
变形花岗岩
锆石定年
构造-岩浆活动
福建东山
Mesozoic Era
deformed granite
Zircon dating
Tectono-magmatic activity
Fujian dongshan
