摘要
Jiandeng granite in the Zanhuang Complex is located in the Northwestern Lincheng County, Hebei Province. The pluton consists mainly of K-feldspar granite and monzogranite with few quartz diorite enclaves. SHRIMP dating of zircon from the granite yielded an age of (2 490±13) Ma. The geochemical data show that the Jiandeng granite is similar to the S-type granite formed by anatexis of the juvenile crust in a tectonic transition setting from compression to extension, and the quartz diorite may represent a residue of the source rock. The formation of Jiandeng granite marks a tectono-magmatic event resulting in stabilization of the North China Craton at the end of the Neoarchean.