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May 2, 2026Minerals0 citationsOpen Access

Petrogenesis and Geological Significance of Monzogranite Porphyry in Middle Gangdese Belt

Petrogenesis and Geological Significance of the Miocene Monzogranite Porphyry in the Chunzhe Area, Middle Gangdese Belt

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Authors

WLWeiwei LiLZLinglin Zhong董董随亮

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Overview

Randomized trial investigates geological evolution of Miocene monzogranite porphyry, suggesting implications for tectonic processes.

Key Points

  • The study aims to understand the origins and geological significance of Miocene granitic porphyries in the Chunzhe area.
  • Conducted zircon U-Pb geochronological and geochemical analyses of two granitic porphyry stocks.
  • Utilized LA-ICPMS for zircon dating and assessed trace element characteristics through whole-rock geochemistry.
  • Analyses included petrological examination and isotopic studies of zircon Hf values.
  • Granitic porphyries were emplaced at 11.8 ± 0.2 Ma and 11.5 ± 0.1 Ma, with additional inherited zircon ages noted.
  • Porphyries show high-K calc-alkaline composition and robust adakite-like trace element characteristics, indicating substantial crustal involvement in magma generation.
  • Zircon εHf(t) values between −4.44 to 2.41 suggest that magmas primarily derive from juvenile continental crust, with minor contributions from ancient crust.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69f594fc71405d493afffec0https://doi.org/10.3390/min16050454
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