Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy

doi:10.1029/2024GL111661

NIGPAS OpenIR

	Positioning the North China Block (NCB) in the Cambrian: Constraints From the Integrated Bio-, Chemo- and Magnetostratigraphy
通讯作者	Li, Yong-Xiang([email protected])
	Jiao, Wenjun 1,2,3; Li, Yong-Xiang 2; Yang, Zhenyu 4; Yang, Aihua 2; Chen, Xi 5; Hu, Chunlin 6; Du, Shengxian 7; Chen, Jun 7
	2025-01-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	52 期号:2 页码:12
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.
关键词	paleomagnetism late Cambrian SPICE North China block geomagnetic polarity
DOI	10.1029/2024GL111661
收录类别	SCI
语种	英语
关键词[WOS]	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
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001395782400001
项目资助者	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
出版者	AMER GEOPHYSICAL UNION
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44779
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.