6Luo Y,,Sun M,Zhao G C,Li S Z,Xu P,Ye K,Xia X P.LA-ICP-MS U-Pb zircon ages of the Liaohe Group in the Eastern Block of the North China Craton:Constraints on the evolution of the Jiao-Liao-Ji Belt. Precambrian Research . 2004
7Li S Z,,Zhao G C.SHRIMP U-Pb zircon geoch-ronology of the Liaoji granitoids:constraints on thePaleoproterozoic Jiao-Liao-Ji belt in the easternblock of the North China craton. PrecambrianResearch . 2007
8Zhao GC,Cawood PA,Wilde SA,et al.Review of global 2.1-1.8 Ga orogens: implications for a pre-Rodinia supercontinent. Earth Science Reviews . 2002