Abstract
A large number of Early Cretaceous magmatic rocks are exposed in the Erlian Basin in North China. LA-MC-ICP-MS zircon U-Pb dating of rhyolites with age of 122.8 ± 0.4 Ma is corresponded to basin subsidence, reflecting a large-scaled extension event occurred in North China. There was a structural inversion after the Neogene, which caused the migration of the Erlian Basin center from the NW to SE, with the center of the Early Cretaceous basin corresponding with the NW margin of the modern basin.
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