| 桐柏——大别山主要构造热事件及40Ar/39Ar地质定年研究 |
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| 引用本文： | 牛宝贵,富云莲,刘志刚,任纪舜,陈文.桐柏——大别山主要构造热事件及40Ar/39Ar地质定年研究[J].地球学报,1994,15(Z1):20-34. |
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| 作者姓名： | 牛宝贵 富云莲 刘志刚 任纪舜 陈文 |
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| 作者单位： | 中国地质科学院地质研究所;中国地质科学院地质研究所;中国地质科学院地质研究所;中国地质科学院地质研究所;中国地质科学院地质研究所 |
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| 摘 要： | 桐柏——大别山是一条复合造山带。在其演化过程中曾经历了扬子旋回（1000Ma-761Ma）和加里东旋回（470Ma-401Ma）两个板块构造旋回的俯冲-碰撞造山作用，之后又经历了早、中华力西（357Ma-314Ma）的平移走滑和晚华力西（286Ma-261Ma）、印支期（224Ma-185Ma）、燕山期（130Ma-111Ma）逆掩或逆冲推覆的陆-陆叠覆造山作用。印支期的高压超高压变质岩系是在陆-陆叠覆造山作用下形成的。燕山期的造山不仅具显著的深层次构造岩浆作用特点，而且还伴随快速的隆升作用。
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| 关 键 词： | 构造热事件 40Ar/39Ar定年 桐柏——大别山区 |
Main tectonothermal events and 40Ar/39Ar dating of the tongbai-dabie mts |
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| Niu Baogui,Fu Yunlian,Liu Zhigang,Ren Jishun and Chen Wen.Main tectonothermal events and 40Ar/39Ar dating of the tongbai-dabie mts[J].Acta Geoscientia Sinica,1994,15(Z1):20-34. |
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| Authors: | Niu Baogui Fu Yunlian Liu Zhigang Ren Jishun and Chen Wen |
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| Institution: | Institcde of Geology,CAGS;Institcde of Geology,CAGS;Institcde of Geology,CAGS;Institcde of Geology,CAGS;Institcde of Geology,CAGS |
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| Abstract: | The Tongbai-Dabie Mts.is a composite orogenic belt,which has been subjected to episodes of mountain-building movement througbout its whole history.In the Yangtze cycle(1000-761Ma)and the Caledonian cycle (470-401Ma)it was involved in the collision orogeny between the Sino-Korean and Yangtze blocks,followed by the strike-slipping in the early-middle Variscan cycle (357-314Ma).Its continent-continent imbrication orogeny occurred in the late Variscan (286-216Ma),Indosinian (224-185Ma) and Yanshanian (130-111Ma) stages.The Indosinian high-pressure and superhigh-pressure metamorphic rocks would be formed as a result of the imbrication orogeny.The Yanshanian mountain-building event was characterized by deep-seated tectono-magmatic activity accompanied rapid uplift. |
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| Keywords: | tectonothermal events 40Ar/39Ar dating Tongbai-Dabie Mts |
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