Eclogitized Metagranitoid from the Su-Lu Ultra-High Pressure (UHP) Province, Eastern China.
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概要
- 論文の詳細を見る
Lenses of weakly deformed metagranitoid and coesite-bearing eclogite are both found within mylonitic orthogneiss of the Jiaodong Group in the Su-Lu ultrahigh pressure (UHP) province, eastern China. In the metagranitoid, omphacite overgrowing host clinopyroxene, and garnet coronas developed along the grain boundaries between igneous plagioclase and mafic phases suggest that the metagranitoid suffered an eclogite facies metamorphism. Quartz aggregates after igneous quartz in the metagranitoid show a distinctive polycrystalline, granoblastic texture. This texture is similar to quartz aggregates of the Dora-Maira metagranite which suffered coesite-eclogite facies metamorphism, but is dissimilar to the Mount Mucrone metagranite which recrystallized under the less extreme quartz eclogite facies. These features of the Su-Lu metagranitoid suggest that the UHP metamorphism may have affected not only the eclogite but also the surrounding metagranitoid.
- 日本学士院の論文
著者
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Wallis Simon
Department Of Earth And Planetary Sciences Graduate School Of Environmental Studies Nagoya Universit
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Hirajima Takao
Department Of Geology And Mineralogy Division Of Earth And Planetary Sciences Graduate School Of Sci
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Zhai Mingguo
Institute Of Geology And Geophysics Chinese Academy Of Sciences
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WALLIS Simon
Department of Geology and Mineralogy, Kyoto University
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YE Kai
Institute of Geology, Academia Sinica
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