Postdoctor LAN Tingguang and his teacher FAN Hongrui report comprehensive data on petrology, geochemistry, Sr–Nd–Pb isotopes and zircon U–Pb and Hf isotopic compositions from the Tongshi intrusive complex, located within the western Shandong Province (Luxi Block) in the eastern North China Craton (NCC).

Their data suggest the interaction of various crustal and mantle sources including lower to upper crust, lithospheric mantle and asthenospheric mantle in the generation of the Tongshi intrusive complex. Sharing common characteristics with other post-collisional magmatic rocks, the high-K calc-alkaline and shoshonitic rocks from the Tongshi complex are considered to have originated in post-collisional setting, marking the beginning of lithospheric destruction in the inner domains of the NCC during Mesozoic.

Fig. 1. Tectonic model for the generation of the Tongshi intrusive complex. (Image by LAN)

Lan et al. Early Jurassic high-K calc-alkaline and shoshonitic rocks from the Tongshi intrusive complex, eastern North China Craton: Implication for crust–mantle interaction and post-collisional magmatism. Lithos. 2012, 140-141: 183–199(Download Here)