北大别木子店石榴辉石岩的麻粒岩相退变质作用

张泽明; 钟增球; 游振东; 胡开明

Volume 25 Issue 3

May 2000

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Article Navigation > Earth Science > 2000 > 25(3): 295-301

ZHANG Zeming, ZHONG Zengqiu, YOU Zhendong, HU Kaiming, 2000. GRANULITE-FACIES RETROGRADE METAMORPHISM OF GARNET PYROXENITE IN MUZIDIAN, NORTHERN DABIE MOUNTAINS. Earth Science, 25(3): 295-301.

Citation:

ZHANG Zeming, ZHONG Zengqiu, YOU Zhendong, HU Kaiming, 2000. GRANULITE-FACIES RETROGRADE METAMORPHISM OF GARNET PYROXENITE IN MUZIDIAN, NORTHERN DABIE MOUNTAINS. Earth Science, 25(3): 295-301.

ZHANG Zeming, ZHONG Zengqiu, YOU Zhendong, HU Kaiming, 2000. GRANULITE-FACIES RETROGRADE METAMORPHISM OF GARNET PYROXENITE IN MUZIDIAN, NORTHERN DABIE MOUNTAINS. Earth Science, 25(3): 295-301.

Citation:

ZHANG Zeming, ZHONG Zengqiu, YOU Zhendong, HU Kaiming, 2000. GRANULITE-FACIES RETROGRADE METAMORPHISM OF GARNET PYROXENITE IN MUZIDIAN, NORTHERN DABIE MOUNTAINS. Earth Science, 25(3): 295-301.

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GRANULITE-FACIES RETROGRADE METAMORPHISM OF GARNET PYROXENITE IN MUZIDIAN, NORTHERN DABIE MOUNTAINS

1.
Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
2.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
3.
Zhejiang Institute of Regional Geological Survey, Xiaoshan 311203, China

Received Date: 1999-09-30
Publish Date: 2000-05-25

Abstract

Abstract

The detailed investigation into the amphibole two-pyroxene granulite in the north of Dabie metamorphic terrain in terms of petrography, mineral chemistry, petrochemistry, and estimated p-t conditions for metamorphism indicates that this rock is a product of the garnet pyroxenite that experienced the granulite-facies retrograde metamorphism during its uplift. The peak metamorphism occurred at least in the high-pressure eclogite facies at a lower temperature gradient. The retrograde metamorphism p-t path of the garnet pyroxenite was characterized by the near isothermal decompression in the early stage, the near isobaric temperature rise in the middle stage and the temperature fall and decompression in the late stage. These features suggest that the p-t conditions of peak metamorphism in the northern Dabie terrain are higher than that of granulite facies.
- granulite,
- garnet pyroxenite,
- eclogite facies,
- p-t path,
- northern Dabie terrain

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References(21)

References

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