Age and Composition of Peridotites:Implications for the Lithospheric Thinning Accompanying with Mantle Replacement Beneath the Eastern North China Craton

Olivine-Mg # null values and diopside-REE patterns of mantle peridotites from the North China were systematically compared. In situ LAM-MC-ICPMS Re-Os isotopes of sulfides in the Hannuoba peridotitic xenoliths are also reported. Based on these data, the lithospheric thinning mechanism beneath the eastern North China Craton during Mesozoic-Cenozoic times was discussed. The results show that in situ analysis, relative to the whole-rock Re-Os...