High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China
文献类型：期刊论文
| 作者 | Shen, Zhongshan4; Yu, Zhiqiang1; Qin, Zuohuan5; Xi, Dangpeng5; Li, Gang2; He, Huaiyu1; Deng, Chenglong4; Zhou, Zhonghe3 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 675期号:1页码:14 |
| 关键词 | Early Cretaceous Jehol Biota Luanping Basin Magnetostratigraphy Geochronology |
| ISSN号 | 0031-0182 |
| DOI | 10.1016/j.palaeo.2025.113021 |
| 英文摘要 | 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. |
| WOS关键词 | BOUNDARY STRATOTYPE SECTION ; BARREMIAN-APTIAN BOUNDARY ; JEHOL-BIOTA ; MAGNETIC-ANISOTROPY ; ACQUISITION CURVES ; MAGNETOCHRON M0R ; SONGLIAO BASIN ; POINT GSSP ; EVOLUTION ; REMAGNETIZATION |
| 资助项目 | National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42203024] ; UNESCO-IUGS IGCP Project[679] ; National Natural Science Foundation of China[42488201] |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001509000100003 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.205/handle/311034/24649]  |
| 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, Key Lab Planetary Sci & Frontier Technol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Palaeobiol & Petr Stratig, Nanjing 210008, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing 100044, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher & Environm Coevolut, Beijing 100029, Peoples R China 5.China Univ Geosci, Beijing 100083, 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(1):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(1),14. |
| MLA | Shen, Zhongshan,et al."High-resolution magnetostratigraphy of the Lower Cretaceous Dabeigou Formation in the Luanping Basin, northern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 675.1(2025):14. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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