Comparison between Paleozoic and Cenozoic Lithospheric Mantle in Eastern Part of North China Block: With a Discussion of Mantle Evolution

摘要

Paleozoic diamond-and xenolith-bearing kimberlites and Cenozoic xenolith-bearing basalts, erupted in the eastern part of the North china block (NCB), provide excellent mantle probes for the research of intra-plate processes and the Phanerozoic evolution of the subcontinental litho- sphere mantle (SCLM). In this study, the mineral inclusions in diamond and xenoliths from Mengyin (Shandong Province) and Fuxian (Liaoning Province) kimberlites were chosen for con- Strainingthe nature of the Paleozoic SCLM, while xenoliths from the Shanwang and Qixia basalt (both in Shandong Province) were chosen for constraining the nature of the Cenozoic SCLM.