The Banshanping pluton is an intrusive rock in the Erlangping Group of the North Qinling. The lithology is mainly quartz diorite and granodiorite. We present zircon U-Pb isotope chronology, mineral chemical analysis and Hf isotopes to study the genesis. The pluton is mainly composed of quartz diorite and granodiorite, and dark inclusions exist in granodiorite. The zircon U-Pb age of the Banshanping quartz diorite is 442.7～432.2 Ma, the zircon U-Pb age of the granodiorite is 436.8～432.7 Ma, and the dark inclusion zircon U-Pb age is 437.6 Ma. The Hf isotopes results show that the 176Hf/177Hf values of the zircons are between 0.282 737～0.282 736, and the εHf（t） values of the zircons are between 8.4 and 9.4, and the two stage Hf model age ranging from 876～832 Ma. The crystallization temperatures and pressures of quartz diorite are 673 ℃～745 ℃ and 0.19～0.54 GPa, granodiorite 657 ℃～730 ℃ and 0.48～0.96 GPa, dark inclusion 680 ℃～734 ℃ and 0.69～1.65 GPa, respectively. According to the comprehensive analysis, the Banshanping pluton is a complex rock mass, and the two phases of crystallization age are 496～487 Ma and 442～432 Ma, respectively. The rock is derived from the new lower crust that is separated from the mantle.
Li Zhenqiang Ren Shenlian Dong Shuwen Li Longming Li Jiahao Ge Can Yang Qingliang Wang Jingya. Zircon U-Pb chronology and petrogenesis of the Banshanping pluton in the North Qinling area[J]. Chinese Journal of Geology, 2019, 54(3): 973-999.