| 超高压变质矿物中的多相固体包裹体研究进展 |
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| 引用本文： | 高晓英,李姝宁,郑永飞.超高压变质矿物中的多相固体包裹体研究进展[J].岩石学报,2011,27(2):469-489. |
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| 作者姓名： | 高晓英 李姝宁 郑永飞 |
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| 作者单位： | 中国科学院壳幔物质与环境重点实验室,中国科学技术大学地球和空间科学学院,合肥,230026 |
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| 基金项目： | 本文受国家自然科学基金项目(40830318、40921002、40903015)和国家973项目(2009CB825004)联合资助. |
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| 摘 要： | 大陆碰撞过程中熔/流体的组成和演化是研究大陆深俯冲动力学的重要内容,而超高压岩石记录了大陆俯冲和折返过程中的熔/流体-岩石相互作用,因而是研究大陆碰撞过程中熔/流体组成和演化的天然实验室。大陆俯冲带高压/超高压变质矿物中多相固体包裹体作为熔/流体活动的直接记录,为我们提供了揭示超高压变质过程中熔/流体演化的重要制约。近年来,围绕超高压岩石中多相固体包裹体的形成时间、演化过程及其所反映的俯冲带超高压变质熔/流体的组成和性质,进行了大量的研究工作。超高压岩石中多相固体包裹体的发现,为理解峰期超高压变质流体的组成和演化提供了重要制约,同时也为研究俯冲板片-地幔楔界面的熔/流体交代作用提供了新的途径。本文从多相固体包裹体形成机制、结构形态特征、矿物化学成分及其地质地球化学意义等方面,对于超高压变质岩中多相固体包裹体的研究现状和存在的问题进行系统地总结和探讨,以期促进多相固体包裹体的岩石学和地球化学研究。
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| 关 键 词： | 多相固体包裹体 熔/流体 部分熔融 超高压变质 超临界流体 大陆深俯冲 |
| 收稿时间： | 2010/9/10 0:00:00 |
| 修稿时间： | 2010/12/12 0:00:00 |
On the study multiphase solid inclusions in UHP metamorphic minerals |
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| GAO XiaoYing,LI ShuNing and ZHENG YongFei.On the study multiphase solid inclusions in UHP metamorphic minerals[J].Acta Petrologica Sinica,2011,27(2):469-489. |
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| Authors: | GAO XiaoYing LI ShuNing and ZHENG YongFei |
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| Institution: | CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The composition and evolution of metamorphic fluid/melt formed during continental collision are major concerns in chemical geodynamics of continental subduction zones. Ultrahigh-pressure (UHP) metamorphic rocks record the interactions between fluid/melt and rocks during the continental subduction and exhumation, presenting an excellent natural laboratory to study the composition and evolution of fluid/melt phases in deep subduction zones. In doing so, multiphase solid (MS) inclusions enclosed in minerals of UHP metamorphic rocks provide us the key information on the behavior of fuild/melt during UHP metamorphism of continental crustal rocks. Many studies have been devoted to the mineral and chemical composition of MS inclusions as well as their formation time and mechanism, with the aim to decipher the physicochemical properties of metamorphic melts. The occurrence of MS inclusions in UHP metamorphic rocks provides not only the important information on the composition and evolution of UHP metamorphic fluid/melt, but also insight into the metasomatism of fluid/melt at slab-arc depths. This paper presents an overview on the progress in the study of MS inclusions in UHP metamorphic rocks, with the emphasis on such outstanding issues as the formation mechanism, morphology and texture, mineral chemistry, trace element and fluid/melt origin. It is expected that microscale studies of MS inclusions within the framework of modern petrology will improve our understanding of continental subduction-zone metamorphism and its bearing on the chermical geodynamics of various subduction zones. |
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| Keywords: | Multiphase solid inclusion Melt/fluid Partial melting UHP metamorphism supercritical fluid Continental subduction |
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