Fig.1 Simplified tectonic map of North China Craton (a) and geological sketch map of the study area (b)

Fig.2 Fields outcrop (a) and microscopic photos (b) of the Huangyugou intrusion

Fig.3 CL images of representative zircons from the quartz monzonite porphyry

Fig.4 Th vs. U plot (a) and zircon U-Pb concordia diagram (b) for the quartz monzonite porphyry

Fig.5 TAS (a) and SiO2 vs. AR (b) diagrams for the Huangyugou intrusion((a) after Lemaitre et al. [37], and (b) after Wright[38]])

Fig.6 K2O vs. SiO2 ((a), after Rollinson et al. [39]) and A/NK vs. A/CNK ((b), after Maniar et al. [40]) plots for the Huangyugou intrusion

Fig.7 Primitive-mantle-normalized multi-element plot (a) and chondrite-normalized REE patterns (b) for theHuangyugou intrusion

Fig.8 Petrogenetic discrimination diagrams for the Huangyugou intrusion (a) FeOT/MgO vs. (Zr+Nb+Ce+Y) plot ((a),base map after Whalen et al. [47]) and Na2O vs. K2O plot ((b),base map after Chappell et al.[48])

Fig.9 Y vs. Sr/Y (a) and δEu vs. (La/Yb)N (b) plots for the Huangyugou intrusion((a) after Altherr et al. [49], and (b) after Dong et al. [50])

Fig.10 La vs. La/Sm (a) and MgO vs. FeOT (b) plots for the Huangyugou intrusion (base map after Zorpi et al. [51])

Fig.11 Tectonic discrimination diagrams for the Huangyugou intrusion (base map after Pearce et al. [60])