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RESETTING OF Sm-Nd ISOTOPIC SYSTEM AMONG MINERALS——DISCOVERY FROM DATING OF CHENCAI GROUP

凌洪飞, 章邦桐, 沈渭洲, 刘继顺, 杨杰东, 陶仙聪

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Abstract

The original rock formation age and metamorphic history of Chencai Group are one of the keys to understanding tectonics and early crustal evolution of Zhejiang and Fujian provinces. For the purpose of obtaining the original rock formation age and metamorphic age, Sm-Nd and Rb-Sr isotopic compositions of metamorphic rocks and minerals were determined. Although only the metamorphic age was obtained, Sm-Nd isotopic system resetting among minerals under amphibolite facies metamorphism was discovered, which is of significance for Sm-Nd chronology of metamorphic rocks.

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What this paper is about

The original rock formation age and metamorphic history of Chencai Group are one of the keys to understanding tectonics and early crustal evolution of Zhejiang and Fujian provinces. For the purpose of obtaining the original rock formation age and metamorphic age, Sm-Nd and Rb-Sr isotopic compositions of metamorphic rocks and minerals were determined. Although only the metamorphic age was obtained, Sm-Nd isotopic system resetting among minerals under amphibolite facies metamorphism was discovered, which is of significance for Sm-Nd chronology of metamorphic rocks.

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Available abstract

The original rock formation age and metamorphic history of Chencai Group are one of the keys to understanding tectonics and early crustal evolution of Zhejiang and Fujian provinces. For the purpose of obtaining the original rock formation age and metamorphic age, Sm-Nd and Rb-Sr isotopic compositions of metamorphic rocks and minerals were determined. Although only the metamorphic age was obtained, Sm-Nd isotopic system resetting among minerals under amphibolite facies metamorphism was discovered, which is of significance for Sm-Nd chronology of metamorphic rocks.

Key concepts: Metamorphic rock, Geology, Metamorphism, Geochemistry, Metamorphic facies, Group (periodic table), Radiometric dating, Mineral

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RESETTING OF Sm-Nd ISOTOPIC SYSTEM AMONG MINERALS——DISCOVERY FROM DATING OF CHENCAI GROUP — Research Paper | ScholarLens