40Ar/39Ar thermochronology of K-feldspar from Cretaceous granites in Yanshan Belt have recorded two rapid cooling events.
The first cooling phase was consistent with widespread extension in Yanshan belt and Eastern China.
The second cooling phase was in accordance with regional uplift in Yanshan Belt.
Rapid cooling events in Yanshan Belt were probably a shallow response to the destruction of the North China Craton.