SHI Yi, ZHANG Zhibin, YANG Fan, LI Dongtao, SHI Shaoshan, ZHAO Chunqiang, YOU Hongxi.2019. Zircon U-Pb Ages of Tonalite in Faku, Liaoning Province, China, and the Early Paleozoic Magmatic Activity in the North Margin of the North China Craton[J]. Acta Geologica Sinica(),93(2):489-490