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Experimental study on crystallization kinetics of alkali feldspar under high T-P conditions

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Chinese Science Bulletin

Abstract

In the granite-NaF-H2O system, there exists a nucleation lag in the course of alkali feldspar crystallization indicated by experiments on crystallization kinetics. The nucleation lag time is about 18 h at 700°C and about 6 h at 650°C. Meanwhile, both nucleation rate and crystal-growth rate of alkali feldspar are not constant during the crystallization process, but vary with crystallization time. Here we suggest that the lag time should be taken into account in the calculation formula of nucleation rate and crystal-growth rate to obtain more reliable parameters.

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Authors and Affiliations

  1. Department of Earth Sciences and State Key Laboratory for Research of Mineral Deposits, Nanjing University, 210093, Nanjing, China

    Fuchun Li, Jinchu Zhu, Bing Rao, Mingyuan Lai & Zhangdong Jin

Authors
  1. Fuchun Li
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  2. Jinchu Zhu
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  3. Bing Rao
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  4. Mingyuan Lai
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  5. Zhangdong Jin
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Li, F., Zhu, J., Rao, B. et al. Experimental study on crystallization kinetics of alkali feldspar under high T-P conditions. Chin.Sci.Bull. 45, 2096–2100 (2000). https://doi.org/10.1007/BF03183535

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  • DOI: https://doi.org/10.1007/BF03183535

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