• Corpus ID: 131251998

Late Ordovician Wanbaogou granitoid pluton from the southern margin of the Qaidam basin:Zircon SHRIMP U-Pb age,Hf isotope and geochemistry

@article{Xiao2012LateOW,
  title={Late Ordovician Wanbaogou granitoid pluton from the southern margin of the Qaidam basin:Zircon SHRIMP U-Pb age,Hf isotope and geochemistry},
  author={Wang Xiao and Mlr Key},
  journal={Acta Petrologica Sinica},
  year={2012}
}
The Wanbaogou pluton,located in the southern margin of the Qaidam basin,contains porphyro-texture quartz monzonite,rapakivi-textured monzogranite and medium grained monzogranite as well as mafic magmatic enclaves.Zircon SHRIMP U-Pb dating for the rapakivi-textured monzogranite yields 441±5Ma.The granitoids are high K calc-alkalic series and metaluminous with large variation in SiO2(62.20%~75.32%),high in K2O(3.58%~5.15%) and Na2O+K2O(7%),and A/CNK of 0.98~1.09.They have high ratios in K2O/Na2O… 
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