Abstract: Black shales and oceanic red beds, as the products of oceanic anoxic and oxic events, respectively, are common during the Cretaceous greenhouse world. We summarize the recent research progress of oceanic anoxic and oxic events including the characteristics and causes of Cretaceous black shales and oceanic red beds, and the formation mechanism of Cretaceous oceanic anoxic and oxic events. Then we discuss the relationship between these two events, hoping to provide the reference and basis for understanding and predicting the future global climate and environment changes.

Key words: Cretaceous, oceanic anoxic event (OAE), black shale, oceanic oxic event, oceanic red bed (ORB)