| 闽东南中生代碰撞造山带的确认证据 |
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| 引用本文： | 王志洪 卢华复. 闽东南中生代碰撞造山带的确认证据[J]. 大地构造与成矿学, 1997, 21(3): 278-284 |
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| 作者姓名： | 王志洪 卢华复 |
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| 作者单位： | 中国科学院地质研究所岩石圈构造演化开放实验室 |
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| 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。
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| 关 键 词： | 碰撞造山带大地构造相 陆-弧型碰撞造山带 碰撞事件时间 闽东南 |
IDENTIFICATION OF SOUTHEASTERN FUJIAN MESOZOIC COLLISIONAL OROGENIC BELT |
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| Abstract: | 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. |
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| Keywords: | tectonic facies continent-arc collisional orogenic belt collisional event southeastern Fujian |
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