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《Chinese Journal of Geochemistry》 2007年01期
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A study on the relationships between metamorphic anatexis and petrogenesis and mineralization

李兆麟  
【摘要】:Metamorphic processes are closely associated with the formation and evolution of the crust and highly related to petrogenesis and mineralization processes. Dynamic systematic analysis indicates that regional metamorphism-migmatization-metamorphic anatexis process is a temperature-pressure progressive process. Metamorphic anatexis process is a critical part with its unique pressure/temperature and thermodynamic, dynamic and geochemical characteristics. The concept of metamorphic anatexis system (MAS) introduced by the author includes the essential factors of material resources, energy resources, process format, material transportation and concentration, occurring time and location. Based on the essential factors of MAS, metamorphic anatexis process-related granitic rocks and deposit cases are discussed on their petrogenesis and/or mineralizaion mechanisms. The discussion points out that granites in the Ailaoshan and Yunkai metamorphic zones are of metamorphic anatexis origin. The genesis of pegmatite ore deposits in metamorphic zones and shear zone gold deposits in shear zones are highly related to metamorphic anatexis process. The study of metamorphism process involved in ore formation and material transport is a hot subject concerned by the international geological circles. Thorough investigations into the relationships between metamorphic anatexis and petrogenesis-meneralization processes are of great importance not only in geological theory, but also in industrial practice.
【作者单位】Dept.of
【分类号】:P611

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【共引文献】
中国博士学位论文全文数据库 前2条
1 张西平;河北阜平平阳片麻状花岗岩及其成因[D];中国地质科学院;2002年
2 戚学祥;大型韧性走滑作用与祁连加里东造山带的形成[D];中国地质科学院;2003年
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