This thesis presents geological, petrological, geochemical, and zircon U-Pb-Lu-Hf isotopic field data for representative Precambrian lithologies in the Western Liaoning-Northeastern Hebei Provinces along the northern margin of the North China Craton (NCC). It describes late Neoarchean (2. 64-2. 48 Ga) supracrustal metavolcanic rocks and granitoid gneisses; late Paleoproterozoic (1. 72-1. 68 Ga) Jianping alkaline plutons and Pinggu alkaline volcanic rocks; and newly discovered ~1. 23 Ga mafic dykes. The nature of magma sources and genesis of each magmatic episode are investigated, and the Precambrian (~2. 6-1. 2 Ga) lithospheric mantle evolution and crust-mantle interaction processes are established for the first time -aspects that provide important constraints in our understanding of the Precambrian crustal evolution and geodynamic processes in the region studied.
