From late Cretaceous to Paleocene, it is the time of basin extruding, uplifting and denudation, therefore a larger angular unconformity formed between Mesozoic and Cenozoic.

• 到晚白垩世至古新世则为盆地挤压隆升剥蚀期，形成了中-新生界之间较大的角度不整合。