Rare earth elements of single zircon from Mesozoic magmatic rocks in north Taihang Mountain were analyzed by LA-ICP MS. The result reflect that average values of ∑REE, δEu and （Lu/Gd）N of the zircons from granite and granodiorite were 747.08 × 10^-6 and 704.84 × 10^-6, 0.47 and 0.49, 23.55 and 24.12 respectively. A strong consistency of the zircons rare earth characteristics indicated that the central face was coincident with marginal face of the rock body, their two faces could originate from the same magma source. However, average values of ∑REE, δEu and （Lu/Gd） N of the zircons from the diorite and quartz diorite porphyrite were 989.69 × 10^-6 and 560.00 × 10-4, 0.56 and 0.75, 20.59 as well as 17.49 respectively. The obvious differences of the zircons rare earth characteristics indicate that the two kinds of dikes can originate from the different magma source triggered by sults showed different formation mechanism. The rethat the （Lu/Gd）N and δEu were two iraportant parameters which were relativley stable but some ratios of the rare dement related with La （or LREE） eg. 2 HREE/∑ LREE and （ Sm/La ） N were unstable in determining the characteristics of zircon as ∑LREE especially La usually changed in a lager scope. Combining the results above with isotopic dating resulted and CL imaged, the geodynamic ground of this region was consistent with super-large gold deposit in eastern Shandong, which was largescale lithosphere thinning of North China Craton and interaction of crust and mantle. The higher fO2 of gold-bearing deep fluid （transmagmatic fluids） carried by quartz diorite porphyrite that originate from the deepest mix with lower fO2 of post-magmatic hydrothermal and underground water, and at last resulted in the formation of gold veins in the fracture of genesis as host rocks.
Journal of the Chinese Rare Earth Society
rare earth element