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The base age of the Changchengian System at the northern North China Craton should be younger than 1670 Ma:Constraints from zircon U-Pb LA-MC-ICPMS dating of a granite-porphyry dike in Miyun County,Beijing

EngineeringEast Asian StudiesChangchengian SystemHistory Of GeologyEast Asian LanguagesGeologyMiyun CountyLanguage StudiesGeochronologyBase AgeRadiocarbon DatingCratonArchaeological DatingTectonics