| Mineral Composition and Metamorphic P-T Conditions of the Eclogitic Rocks in the Eastern Dabie Mountains and Their Genetic Implication |
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| 作者单位： | Ge Ningjie，Li Shuguang，Peng Zhonghua and Liu Deliang Department of Earth and Space Sciences，University of Science and Technology of China，Hefei，Anhui Jiang Minxi |
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| 摘 要： | There are obvious differences in the mineral assemblage and metamorphic P-T conditions between the eclogites from the northern and southern parts of the eastern Dabie Mountains. Those from the northern part of the mountains are developed in Alpine peridotite and gneiss. They have a mineral assemblage of garnet+diopside with no quartz, and were formed at temperatures of 600℃-740℃. Those from the southern part are developed in gneiss and marble. They consist of garnet+omphacite+less quartz and were metamorphosed at temperatures in the range of 650°-800℃. These differences suggest that the former may be formed during the metamorphism of the deep subducted oceanic crust, whereas the latter may be genetically related to the subduction of the continental crust in this area.
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Mineral Composition and Metamorphic P-T Conditions of the Eclogitic Rocks in the Eastern Dabie Mountains and Their Genetic Implication |
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| Ge Ningjie,Li Shuguang,Peng Zhonghua and Liu Deliang. Mineral Composition and Metamorphic P-T Conditions of the Eclogitic Rocks in the Eastern Dabie Mountains and Their Genetic Implication[J]. Acta Geologica Sinica (English Edition), 1993, 67(4) |
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| Authors: | Ge Ningjie Li Shuguang Peng Zhonghua Liu Deliang |
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| Affiliation: | Ge Ningjie,Li Shuguang,Peng Zhonghua and Liu Deliang Department of Earth and Space Sciences,University of Science and Technology of Chin,Hefei,Anhui Jiang Minxi |
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| Abstract: | |
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| Keywords: | collisional orogen eclogitic rocks from the southern and northern parts of the Dabie Mountains T-P conditions |
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