Paleozoic granites are widely spread in northeastern China, and they are very important for revealing crustal growth. Nevertheless, the study on the Paleozoic granites in east part is relatively weak; therefore, Paleozoic granite research in east pail requires special attention. Zircon U-Pb dating by LA-ICPMS technique indicates that the studied granitic pluton was emplaced during Late Paleozoic (Hercynian) with a weighted age of 262.2 +/- 1.2Ma. Meanwhile, zircon Hf analyses conducted by LA-MC-ICPMS show that this pluton has variational epsilon(Hf) (262Ma) values from 1.35 to 5.62, indicating that the primary magma of the granites mainly resulted from a depleted asthenospheric mantle. In addition, the Hf two-stage modal ages change from 1091Ma to 1357Ma, suggesting an important crustal growth event beneath the studied area.

Publication name	ACTA PETROLOGICA SINICA　Volume:28 　Issue:11 　Pages:3715-3720 　Published:NOV 2012
Author(s)	Liu Shen; Feng CaiXia; Hu RuiZhong; Feng GuangYing; Yu XiaoFei; Li Cai; Jia DaCheng; Qi YouQiang
Corresponding author	LIU Shen liushen@nwu.edu.cn NW Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China.
Author(s) from IGCAS	HU RuiZhong; FENG GuangYing; QI YouQiang

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