A continental record of Early Cretaceous (Aptian) vegetation and climate change based on palynology and clay mineralogy from the North China Craton

doi:10.1016/j.palaeo.2025.112750

NIGPAS OpenIR

	A continental record of Early Cretaceous (Aptian) vegetation and climate change based on palynology and clay mineralogy from the North China Craton
通讯作者	Lin, Miao-Qin([email protected]) ; Sun, Ming-Dao([email protected]) ; Xu, Yi-Gang([email protected])
	Lu, Chang 1,2; Lin, Miao-Qin 1,3; Shen, Jun 4; Ji, Xing-Kai 3; Yang, Chuan-Mao 1; Zhang, Zhi-Hua 4; He, Qian 4; Sun, Ming-Dao 1; Xu, Yi-Gang 1,2
	2025-03-15
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	662 页码:16
摘要	The Early Cretaceous Aptian Stage (121.4-113.0 Ma) witnessed significant climate changes and environmental perturbations including Ocean Anoxic Event 1a; however, reconstructions of paleoclimate have predominantly relied on marine records. In this paper, we report palynological and clay mineralogical data from a continuous core (YSDP-4) in the Kazuo Basin of Northeast China to produce a high-resolution terrestrial Aptian record that is correlated with the marine record. In the lowermost part of the Aptian succession (similar to 121 to similar to 120 Ma), vegetation types were dominated by bisaccate conifers (>75%), while smectite and illite clay minerals were co- dominant (each similar to 40-50%), indicating cool and semi-humid to semi-arid conditions with a tendency towards aridity. This was followed by an exceptionally dry and hot climatic event, from similar to 120 Ma to similar to 117.5 Ma, marked by a rapid increase in drought-resistant plants including members of the Cheirolepidiaceae (>60%). During the transition from the early Aptian to the late Aptian (similar to 117.5 to similar to 114 Ma), the clay mineral composition exhibited a complex pattern containing chlorite and kaolinite, and the proportion of vegetation representing relatively cool and moist conditions increased, indicating a gradual transition to a humid climate. By the end of the late Aptian (similar to 114 to similar to 112 Ma), climate became cooler and more humid, as indicated by a sharp increase in Taxodiaceae pollen (similar to 50%). Based on the similar patterns of vegetation and sedimentary records observed in the Kazuo Basin and across the Tethyan Realm, we propose that the early Aptian hot/dry climatic event was synchronous with Oceanic Anoxia Event 1a. The findings of our study provide an important terrestrial sedimentary reference section for future integration of Cretaceous climatic events and biological evolution across the marine-terrestrial spectrum.
关键词	Paleoclimate Palynology Clay mineralogy Kazuo Basin North China Craton Oceanic Anoxic Event
DOI	10.1016/j.palaeo.2025.112750
收录类别	SCI
语种	英语
关键词[WOS]	SEA-SURFACE TEMPERATURES ; JEHOL-BIOTA ; PALEOCLIMATIC INTERPRETATION ; JIUFOTANG FORMATION ; SONGLIAO BASIN ; ORGANYA BASIN ; STRATIGRAPHY ; EVOLUTION ; POLLEN ; SEDIMENTARY
资助项目	National Natural Science Foundation of China[42288201] ; GIGCAS[IS-3605]
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001410311600001
项目资助者	National Natural Science Foundation of China ; GIGCAS
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44834
专题	中国科学院南京地质古生物研究所
通讯作者	Lin, Miao-Qin; Sun, Ming-Dao; Xu, Yi-Gang
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Lu, Chang,Lin, Miao-Qin,Shen, Jun,et al. A continental record of Early Cretaceous (Aptian) vegetation and climate change based on palynology and clay mineralogy from the North China Craton[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,662:16.
APA	Lu, Chang.,Lin, Miao-Qin.,Shen, Jun.,Ji, Xing-Kai.,Yang, Chuan-Mao.,...&Xu, Yi-Gang.(2025).A continental record of Early Cretaceous (Aptian) vegetation and climate change based on palynology and clay mineralogy from the North China Craton.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,662,16.
MLA	Lu, Chang,et al."A continental record of Early Cretaceous (Aptian) vegetation and climate change based on palynology and clay mineralogy from the North China Craton".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 662(2025):16.