High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China

doi:10.1016/j.palaeo.2025.113021

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	High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China
	Shen, Zhongshan 1; Yu, Zhiqiang 2; Qin, Zuohuan 3; Xi, Dangpeng 3; Li, Gang 4; He, Huaiyu 2; Deng, Chenglong 1; Zhou, Zhonghe5
	2025-10-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	675 页码:14
通讯作者	Yu, Zhiqiang(zhiqiangyu@mail.iggcas.ac.cn)
摘要	The Lower Cretaceous Dabeigou Formation and its equivalent strata in northern Hebei Province, China, are of great interest because they contain early representatives of the Jehol Biota, and record significant evolutionary and geological events. Despite recent advances in paleontology, biostratigraphy, radiometric dating and cyclostratigraphy, there is no consensus about the exact age of the Dabeigou Formation. Here, we report new highresolution magnetostratigraphy coupled with detailed rock magnetic results from the Zhangjiagou section in the Luanping Basin. Rock magnetic results indicate that both magnetite and greigite are the primary carriers of the characteristic remanent magnetizations. Correlation to the geomagnetic polarity timescale was achieved by integrating magnetostratigraphy and previously published SIMS U-Pb zircon ages for the same section. Magnetostratigraphic results show that the sedimentary succession spans from Subchron M10Nn.3n to Subchron M10Nn.1n, and the age of the section can be constrained to the early Hauterivian stage. Therefore, the basal age of this succession is no later than 132 Ma, providing new constraints on the formation age of the Luanping Basin and a minimum age estimate for the early representatives of the Jehol Biota. Our new magnetostratigraphic findings provide important evidence for integrating marine and terrestrial records and further lay a foundation for studying paleoenvironmental changes and their impact on the evolution of the Jehol Biota.
关键词	Early Cretaceous Jehol Biota Luanping Basin Magnetostratigraphy Geochronology
DOI	10.1016/j.palaeo.2025.113021
关键词[WOS]	BOUNDARY STRATOTYPE SECTION ; BARREMIAN-APTIAN BOUNDARY ; JEHOL-BIOTA ; MAGNETIC-ANISOTROPY ; ACQUISITION CURVES ; MAGNETOCHRON M0R ; SONGLIAO BASIN ; POINT GSSP ; EVOLUTION ; REMAGNETIZATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42203024] ; National Natural Science Foundation of China[42488201] ; UNESCO-IUGS IGCP Project[679]
项目资助者	National Natural Science Foundation of China ; UNESCO-IUGS IGCP Project
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001509000100003
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/24650
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Yu, Zhiqiang
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher & Environm Coevolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Planetary Sci & Frontier Technol, Beijing 100029, Peoples R China 3.China Univ Geosci, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Palaeobiol & Petr Stratig, Nanjing 210008, Peoples R China 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Shen, Zhongshan,Yu, Zhiqiang,Qin, Zuohuan,et al. High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2025,675:14.
APA	Shen, Zhongshan.,Yu, Zhiqiang.,Qin, Zuohuan.,Xi, Dangpeng.,Li, Gang.,...&Zhou, Zhonghe.(2025).High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,675,14.
MLA	Shen, Zhongshan,et al."High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 675(2025):14.