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The Hf isotope composition of original igneous or detrital zircons in high-grade metamorphic rocks can be used to trace protolith origin, but metamorphic effect on the Hf isotope composition of newly grown domains remains to evaluate. We report a detailed in situ combined study of intragrain U–Pb and Lu–Hf isotopes in zircons from granitic gneiss and eclogite in the Dabie orogen of China that experienced...
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