Sun S S and McDonough W F. 1989. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes. Geological Society, London, Special Publications, 42(1): 313？345.
[3]
Yuan H L, Gao S, Dai M N, Zong C L, Günther D, Fontaine G H, Liu X M and Diwu C R. 2008. Simultaneous determinations of U-Pb age, Hf isotopes and trace element compositions of zircon by excimer laser- ablation quadrupole and multiple-collector ICP-MS. Chemical Geology, 247(1-2): 100？118.
[4]
Yuan H L, Gao S, Liu X M, Li H M, Günther D and Wu F Y. 2004. Accurate U-Pb age and trace element determina?tions of zircon by laser ablation-inductively coupled plasma-mass spectrometry. Geostandards and Geoana?lytical Research, 28(3): 353？370.
[5]
Zhao T P, Zhou M F, Zhao J H, Zhang K J and Chen W. 2008. Geochronology and geochemistry of the ca. 80 Ma Rutog granitic pluton, northwestern Tibet: Implications for the tectonic evolution of the Lhasa Terrane. Geological Magazing, 145(6): 845？857.
Boynton W V. 1984. Geochemistry of the rare earth elements: Meteorite studies // Henderson P. Rare Earth Element Geochemistry. Elsevier: 63？114.
[35]
Chung S L, Chu M F, Ji J Q, O’Reilly S Y, Pearson N J, Liu D Y, Lee T Y and Lo C H. 2009. The nature and timing of crustal thickening in Southern Tibet: Geochemical and zircon Hf isotopic constraints from post-collisional adakites. Tectonophysics, 477(1-2): 36？48.
[36]
Liu Y, Gao S, Hu Z, Gao C, Zong K and Wang D. 2010. Continental and oceanic crust recycling-induced melt- peridotite interactions in the Trans-North China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons of mantle xenoliths. Journal of Petrology, 51(1-2): 537？571.
[37]
Liu Y S, Hu Z C, Gao S, Günther D, Xu J, Gao C G and Chen H H. 2008. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS with?out applying an internal standard. Chemical Geology, 257(1): 34？43.
[38]
Ludwig K R. 2003. User’s Manual for Isoplot 3.0: A geochronological Toolkit for Microsoft Excel. Berkeley Geochronological Center, Special Publication, 4: 1-71.
[39]
Marjorie W. 1993. Magmatic differentiation. Geological Society of London, 150(4): 611-624.
[40]
Rubatto D and Gebauer D. 2000. Use of cathodolumi?nescence for U-Pb zircon dating by ion microprobe: Some examples from the Western Alps // Cathodolum- ine?scence in Geoscience. Germany: Springer-Verlag Ber?lin Heidelberg: 373？400.
