摘要
闽东南地区的大地构造性质屡有争议。本文依据造山带类型划分和碰撞造山带大地构造相模式理论鉴别出了闽东南活化基底、泉州蛇绿混杂岩带、长乐-南澳韧性剪切带、台湾西部前陆磨拉石盆地、闽东南沿海前陆褶冲带活化盖层和壳内低速带等大地构造相和碰撞造山带识别标志，确认闽东南地区为闽台微大陆与闽浙中生代火山弧碰撞形成的陆-弧型碰撞造山带，碰撞事件发生时间为100～120Ma。
The tectonic characteristic of southeastern Fujian has been argued for a long time. Inthe light of the model of tectonic factes, the authors recognized some tectonic factes anddistinctive signs of collisional orogenic belt, such as SE Fujian mobilized basement,Quanzhou ophiolitic melange, Changle-Nan'ao ductile shear zone, foreland molasse basin inwestern Taiwan, mobilized cover in coastal region and the low-velocity layer lying in thecrust of 12～15 km. They made up of southeastern Fujian continent-arc collisional orogenicbelt, which formed by the collision between Fujian-Taiwan microcontinent and Fujian-Zhejiang Mesozoic volcanic arc during 100-120 Ma.
出处
《大地构造与成矿学》
EI
CAS
CSCD
1997年第3期278-284,共7页
Geotectonica et Metallogenia
基金
国家自然科学基金
关键词
中生代
碰撞造山带
造山带
闽东南
tectonic facies
continent-arc collisional orogenic belt
collisional event
southeastern Fujian
