Triassic arc magmatism in the Qiangtang area, northern Tibet: Zircon U-Pb ages, geochemical and Sr-Nd-Hf isotopic characteristics, and tectonic implications

@inproceedings{Zhai2013TriassicAM,
  title={Triassic arc magmatism in the Qiangtang area, northern Tibet: Zircon U-Pb ages, geochemical and Sr-Nd-Hf isotopic characteristics, and tectonic implications},
  author={Qing-guo Zhai and Bor-ming Jahn and Li Su and Jun Wang and Xuan Mo and Hao-yang Lee and Kuo-Lung Wang and Suo-han Tang},
  year={2013}
}
Abstract Felsic magmatic rocks of Triassic ages occur on the north side of the Qiangtang metamorphic belt. Zircon dating using the SHRIMP and LA-ICP-MS techniques reveals that these rocks were emplaced between 223 and 205 Ma. The emplacement time is similar to the Ar–Ar ages of phengites and sodic amphiboles of the eclogites and blueschist from the Qiangtang metamorphic belt. The felsic magmatic rocks can be divided into two groups with distinct geochemical and Sr–Nd–Hf isotopic compositions… CONTINUE READING

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