Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy
文献类型：期刊论文
| 作者 | Jiao, Wenjun1,2,3; Li, Yong-Xiang2; Yang, Zhenyu4; Yang, Aihua2; Chen, Xi5; Hu, Chunlin6; Du, Shengxian7; Chen, Jun7 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2025-01-28 |
| 卷号 | 52期号:2页码:12 |
| 关键词 | paleomagnetism late Cambrian SPICE North China block geomagnetic polarity |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2024GL111661 |
| 通讯作者 | Li, Yong-Xiang(yxli@nju.edu.cn) |
| 英文摘要 | The Paleozoic paleogeographic and tectonic evolution of the North China Block (NCB) are poorly constrained due to the polarity ambiguity of its early Paleozoic paleopoles. Here we present magnetostratigraphic results of two upper Cambrian limestone-dominated marine successions in the NCB that span the Steptoean positive carbon isotope excursion (SPICE), a global carbon-cycle perturbation concomitant with trilobite extinctions. Stepwise thermal demagnetization reveals three-component magnetizations with the high-temperature component being a primary remanence as substantiated with paleomagnetic and rock magnetic analysis. A composite polarity sequence across the SPICE is established for the NCB and is correlated with coeval polarity sequence of Siberia, allowing to assign a reversed polarity for the NCB during the SPICE. This inter-continental correlation, together with paleobiogeographic affinities, supports a southern hemispheric low-latitude location adjacent to the west of East Gondwana for the NCB during the late Cambrian, thus constraining further paleogeographic-tectonic reconstructions around East Gondwana during the Paleozoic. |
| WOS关键词 | CARBON-ISOTOPE EXCURSION ; U-PB GEOCHRONOLOGY ; GEOMAGNETIC REVERSAL FREQUENCY ; PHANEROZOIC POLAR WANDER ; KULUMBE RIVER SECTION ; HEXI CORRIDOR TERRANE ; PALEOMAGNETIC POLES ; MAGNETIC STRATIGRAPHY ; SIBERIAN PLATFORM ; SOUTH CHINA |
| 资助项目 | National Key Research and Development Program of China[2022YFF0800100] ; National Key R&D Program of China[2020M672154] ; China Postdoctoral Science Foundation[42174079] ; China Postdoctoral Science Foundation[41230208] ; China Postdoctoral Science Foundation[41774075] ; China Postdoctoral Science Foundation[42006050] ; National Natural Science Foundation of China[CZ2024YJRC17] ; Talent Project of Chizhou University[2024AH051376] ; Key Project of Natural Science Research of Anhui Provincial Department of Education ; University of Minnesota |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001395782400001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Key Research and Development Program of China ; National Key R&D Program of China ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; Talent Project of Chizhou University ; Key Project of Natural Science Research of Anhui Provincial Department of Education ; University of Minnesota |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/44778]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Li, Yong-Xiang |
| 作者单位 | 1.Chizhou Univ, Sch Geog & Planning, Chizhou, Peoples R China 2.Nanjing Univ, Inst Continental Geodynam, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 4.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing, Peoples R China 5.Univ Cambridge, Dept Earth Sci, Godwin Lab Palaeoclimate Res, Cambridge, England 6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 7.Shandong Inst Geol Sci, Jinan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiao, Wenjun,Li, Yong-Xiang,Yang, Zhenyu,et al. Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy[J]. GEOPHYSICAL RESEARCH LETTERS,2025,52(2):12. |
| APA | Jiao, Wenjun.,Li, Yong-Xiang.,Yang, Zhenyu.,Yang, Aihua.,Chen, Xi.,...&Chen, Jun.(2025).Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy.GEOPHYSICAL RESEARCH LETTERS,52(2),12. |
| MLA | Jiao, Wenjun,et al."Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy".GEOPHYSICAL RESEARCH LETTERS 52.2(2025):12. |
入库方式： OAI收割
来源：南京地质古生物研究所
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