An integrated stratigraphic framework for the Lower Cretaceous in the Luanping Basin of northern China: Implications for major evolutionary and climatic events

• Published in: Palaeogeography, palaeoclimatology, palaeoecology Vol. 639; p. 112076
• Main Authors: Qin, Zuohuan, Xi, Dangpeng, Yu, Zhiqiang, Wan, Xiaoqiao
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2024
• Subjects: basins; China; Early cretaceous; Early Cretaceous epoch; evolution; Integrated stratigraphy; Jehol Biota; Luanping Basin; Oceanic anoxic events; palaeogeography; Paleoclimate; paleoclimatology; paleoecology; China; Paleoclimate; Oceanic anoxic events; Jehol Biota; Early cretaceous; Integrated stratigraphy; Luanping Basin
• ISSN: 0031-0182
• DOI: 10.1016/j.palaeo.2024.112076

The Lower Cretaceous fluvial-lacustrine deposits in the Luanping Basin (northern Hebei Province, China) contain records of the famous Jehol Biota and are important for understanding the terrestrial response to hyperthermal events and their correlation with oceanic anoxic events (OAEs). In this study, we critically review the lithostratigraphic, chronostratigraphic, and biostratigraphic studies of these strata to establish an integrated stratigraphic framework and their correlative relationship with contemporaneous strata in western Liaoning. The phased evolution of Jehol Biota and the corresponding changes in the paleoclimate and paleoenvironment are discussed, and putative terrestrial correlatives with Early Cretaceous OAEs are identified. This study provides a stratigraphic basis for future investigation of Cretaceous events in East Asia and worldwide. •Lower Cretaceous integrated stratigraphy of Luanping Basin were established.•The Dabeigou to Nandian formations recorded early to late phases of Jehol Biota.•Origin of the Jehol Biota benefits by warm and humid climate.•The Dabeigou Formation records the terrestrial response of the Weissert event.