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The discovery of eclogite dikes in low-greenschist facies volcaniclastic rocks of the Dabie Mountains

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Chinese Science Bulletin

Conclusions

  1. 1.

    The eclogite dikes in low-greenschist facies epi-metamorphic volcaniclastic rocks in the Dabie Mountains areas show magma origin rather than tectonic melange or metamorphic origin.

  2. 2.

    Coesite and quartz pseudomorphs in the eclogite show that they were formed at the pressure of over 2.8 GPa and belong to ultrahigh pressure type. Therefore, there were high-pressure eclogite magma at deep crust depth.

  3. 3.

    From the country rock age of the low-grade metamorphic volcaniclastic rocks, we infer that the eclogite dikes were formed after the Sinian.

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Authors and Affiliations

  1. Regional Geological Survey of Anhui Province, 230011, Hefei, China

    Tianshan Gao, Jiafu Tang, Cunting Zhou, Mingjin Hou & Cunchao Qian

Authors
  1. Tianshan Gao
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  2. Jiafu Tang
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  3. Cunting Zhou
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  4. Mingjin Hou
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  5. Cunchao Qian
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Gao, T., Tang, J., Zhou, C. et al. The discovery of eclogite dikes in low-greenschist facies volcaniclastic rocks of the Dabie Mountains. Chin.Sci.Bull. 42, 1726–1729 (1997). https://doi.org/10.1007/BF02882676

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  • DOI: https://doi.org/10.1007/BF02882676

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