| 大别山超高压变质岩的退变质赤微构造：折返过程的启示 |
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| 引用本文： | 游振东 张泽明. 大别山超高压变质岩的退变质赤微构造：折返过程的启示[J]. 地质学报, 2000, 74(3): 224-233 |
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| 作者姓名： | 游振东 张泽明 |
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| 作者单位： | 1. 中国地质大学,武汉,430074
2. 中国地质科学院地质研究所,北京,100037 |
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| 基金项目： | 原地质矿产部“九五”科研项目(编号9501102)，国家自然科学基金(编号49794041、49772146) |
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| 摘 要： | 大别山超高压变质岩中发现了一系列退变质显微构造，其主要类型有：①由于出溶而产生的定一包裹物；②由于多型转变而产生的假像替代；③固→固反应产生的冠状体；④涉及流体的退变质反应产生的冠状体或后成合晶。借助显微构造关系，可以建立超高压变质岩的退变质演化阶段，从而构筑其ＰＴ演化趋势、识别出碰撞造山和超高压变质峰期之后的两阶段隆升历史；早期为“挤出”作用诱发的近等温减压退变质；晚期则是地壳伸展体制下的退变质
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| 关 键 词： | 超高压变质岩 减压退变质 显微构造 大别山 |
Retrogressive Microstructures in High-Pressure and Ultrahigh-Pressure Metamorphic Rocks in the Dabie Mountains:Enlightenment to the Exhumation Process |
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| You Zhendong Suo Shutian Zhong Zengqiu Sang Longkang Zhang Zeming Faculty of Earth Sciences,China University of Geosciences,Wuhan,Institute of Geology,Chinese Academy of Geological Sciences,Beijing. Retrogressive Microstructures in High-Pressure and Ultrahigh-Pressure Metamorphic Rocks in the Dabie Mountains:Enlightenment to the Exhumation Process[J]. Acta Geologica Sinica, 2000, 74(3): 224-233 |
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| Authors: | You Zhendong Suo Shutian Zhong Zengqiu Sang Longkang Zhang Zeming Faculty of Earth Sciences China University of Geosciences Wuhan Institute of Geology Chinese Academy of Geological Sciences Beijing |
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| Affiliation: | You Zhendong Suo Shutian Zhong Zengqiu Sang Longkang Zhang Zeming Faculty of Earth Sciences,China University of Geosciences,Wuhan,Institute of Geology,Chinese Academy of Geological Sciences,Beijing |
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| Abstract: | A number of retrogressive microstructures have been found in the ultrahigh-pressure (UHP) metamorphic rocks in the Dabie Mountains. There are four major types: (1) oriented mineral inclusions resulting from exsolution; (2) pseudomorphic replacements resul |
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| Keywords: | ultrahigh-pressure metamorphic recks decompressive retrometamorphism mi-crotructure uplift and exhumation processes Dabie Mountains |
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