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Hydrogen isotope compositions of mantle-derived amphibole megacrysts from Qilin, Guangdong and its tectonic significance

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Abstract

Hydrogen isotope compositions of mantle-derived amphibole megacrysts from Qilin, Guangdong Province have been obtained by ion micro-probe. δD and H contents are constant both among different samples and within single sample, demonstrating that their formation condition is very stable. High δD values suggest the presence of a component recycled from crust which is possibly related to the subcluction of Pacific Plate beneath Eurasian Plate in Mesozoic.

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Correspondence to Qunke Xia.

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Xia, Q., Chen, D., Etienne, D. et al. Hydrogen isotope compositions of mantle-derived amphibole megacrysts from Qilin, Guangdong and its tectonic significance. Chin.Sci.Bull. 44, 474–477 (1999). https://doi.org/10.1007/BF02977892

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Keywords

  • hydrogen isotope
  • ion micr-probe
  • amphibole megacryst