Detrital zircon U-Pb geochronological and sedimentological study of the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River

- The existence of a paleo-Red River during the Paleocene to late Eocene.
- The paleo-Red River lost its northern sources after approximately 35 Ma.
- Left-lateral slip of the ASRR may be the cause of the drainage evolution.