| 关于变质深熔作用与成岩成矿关系的思考 |
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| 引用本文： | 李兆麟.关于变质深熔作用与成岩成矿关系的思考[J].地学前缘,2001,8(3):29-38. |
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| 作者姓名： | 李兆麟 |
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| 作者单位： | 中山大学地球科学系 |
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| 基金项目： | 国家自然科学基金资助项目 (49673189，498730 18)，高校博士学科点专项科研基金资助项目 ( 980 5 5 80 7) |
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| 摘 要： | 变质作用与地壳形成演化过程密切伴生 ,并与成岩、成矿作用具密切关系。从动力学系统分析 ,区域变质作用混合岩化作用变质深熔作用是温压递进性变质作用。变质深熔作用是变质过程一个重要组成部分 ,它具有独特的温压、热力学、动力学及地球化学特性 ,文中定义为变质深熔系统 ,简称MAS ,它是由物质来源、能量来源、作用形式 ,物质转移与富集 ,形成时间与位置等要素组成。文中列举与变质深熔作用有关的花岗质岩石及矿床实例 ,并据MAS要素分析其成岩、成矿机制 ,剖析了哀牢山变质带、云开变质带花岗质岩石属变质深熔成因 ,变质带中伟晶岩矿床、剪切带金矿床形成与变质深熔作用具密切关系。当前国际上十分重视在矿床形成和物质转移中的变质作用研究 ,因此深入开展变质深熔作用与成岩、成矿关系研究具重要理论和实践指导意义。
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| 关 键 词： | 变质作用 变质深熔系统 变质深熔 成岩 成矿 |
| 文章编号： | 1005-2321(2001)03-0029-10 |
| 修稿时间： | 2001年8月17日 |
SOME THOUGHTS ON RELATIONSHIPS BETWEEN METAMORPHIC ANATEXIS AND PETROGENESIS-MINERALIZATION |
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| LI Zhao-lin.SOME THOUGHTS ON RELATIONSHIPS BETWEEN METAMORPHIC ANATEXIS AND PETROGENESIS-MINERALIZATION[J].Earth Science Frontiers,2001,8(3):29-38. |
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| Authors: | LI Zhao-lin |
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| Abstract: | Metamorphism is closely related with the origin and evolution of the Earth crust as well as petrogenesis and mineralization.According to the systematic kinetic analysis the processes from regional metamorphisms to migmatizations to metamorphic anatexis are the temperature-pressure progressive metamorphic processes.As an important part of the metamorphism processes, metamorphic anatexis has its own distinct temperature-pressure, thermodynamic, kinetic and geochemical characteristics.In this article the model of Metamorphic Anatexis System (MAS) is defined,which includes mass sources, energy sources, forms of act, mass transfer and concentration, petrogenetic age and locations.Case studies of metamorphic anatexis relating to granitoid rock are presented in the article to analyze their petrogenetic and mineralization mechanisms via examining the elements of MAS.The granitoid rock in Ailaoshan metamorphic rock belt and Yunkai metamorphic rock belt are determined as metamorphic anatexis petrogenesis.Pegmatite ore deposits and shearing zone gold ore deposits are closely related with metamorphic anatexis.The international geology community is paying greater attention to the metamorphic processes in the formations and mass transformations of ore deposits.It is both theoretically and practically significant to do intensive researches and investigations on the relationships between metamorphic anatexis and petrogenesis-mineralization. |
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| Keywords: | metamorphism metamorphic anatexis system (MAS) metamorphic anatexis petrogenesis mineralization |
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