Late Miocene to Present Paleoclimatic and Paleoenvironmental Evolution of the South China Sea Recorded in the Magneto-Cyclostratigraphy of IODP Site U1505

doi:10.1029/2022PA004547

	Late Miocene to Present Paleoclimatic and Paleoenvironmental Evolution of the South China Sea Recorded in the Magneto-Cyclostratigraphy of IODP Site U1505
	Nie, Yunfeng 1,2,3; Wu, Huaichun 1,2,3; Satolli, Sara 4; Ferre, Eric C.5; Shi, Meinan 1,2,3; Fang, Qiang 1,2,3; Xu, Ye 6,7; Zhang, Shihong 1; Li, Haiyan 1; Yang, Tianshui 1
刊名	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
	2023-02-01
卷号	38 期号:2 页码:20
ISSN号	2572-4517
DOI	10.1029/2022PA004547
通讯作者	Wu, Huaichun(whcgeo@cugb.edu.cn)
英文摘要	The continuous sedimentary cores recovered at the International Ocean Discovery Program (IODP) Site U1505, Expedition 368, provide an opportunity for paleoceanography and paleoclimate reconstruction in the continental margin of the northern South China Sea (SCS). In this study, we conducted detailed rock- and paleomagnetic studies on 420 discrete samples from the top similar to 200 m of the synthetic records of Holes U1505C and U1505D. Rock magnetic analyses indicate that low-coercivity pseudosingle domain magnetite dominates as the primary ferromagnetic mineral of Site U1505. The magnetostratigraphic age model was constructed by correlating the interpreted polarity sequence with the Geomagnetic Polarity Time Scale 2020 with the constraints of the biostratigraphic data and the distribution probability of the age of each polarity zone provided by a Dynamic Time Warping algorithm. The Milankovitch cycles of the short eccentricity, obliquity, and precession cycles were identified in the magnetic susceptibility (MS) and natural gamma radiation (NGR) series based on paleomagnetic results. We established an similar to 9 Myr high-resolution astronomical time scale by tuning the MS and NGR records to the global oxygen isotope curves, the obliquity, and the eccentricity curves of the La2004 astronomical solution. Our new age model reveals detailed sedimentation rate variations and a similar to 500 kyr hiatus across the Brunhes-Matuyama boundary related to local tectonic activity. These results lay the foundation for understanding the paleoceanography and paleoclimate evolution of the SCS.
资助项目	National Natural Science Foundation of China[41925010] ; National Natural Science Foundation of China[42002028] ; 111 project[B20011] ; MIUR ; U.S. National Science Foundation (NSF)
WOS关键词	ASIAN SUMMER MONSOON ; REMANENT MAGNETIZATION ; GRAIN-SIZE ; SEDIMENTS ; ACQUISITION ; ROCKS ; MAGNETOSTRATIGRAPHY ; ASTROBIOCHRONOLOGY ; QUANTIFICATION ; VARIABILITY
WOS研究方向	Geology ; Oceanography ; Paleontology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:001000274100009
资助机构	National Natural Science Foundation of China ; 111 project ; MIUR ; U.S. National Science Foundation (NSF)
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42419]
专题	中国科学院南京地质古生物研究所
通讯作者	Wu, Huaichun
作者单位	1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing, Peoples R China 2.China Univ Geosci, Marine & Polar Res Ctr, Beijing, Peoples R China 3.China Univ Geosci, Sch Ocean Sci, Beijing, Peoples R China 4.Univ G dAnnunzio, Dept Engn & Geol, Chieti, Italy 5.Univ Louisiana Lafayette, Sch Geosci, Lafayette, LA USA 6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China 7.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Nie, Yunfeng,Wu, Huaichun,Satolli, Sara,et al. Late Miocene to Present Paleoclimatic and Paleoenvironmental Evolution of the South China Sea Recorded in the Magneto-Cyclostratigraphy of IODP Site U1505[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2023,38(2):20.
APA	Nie, Yunfeng.,Wu, Huaichun.,Satolli, Sara.,Ferre, Eric C..,Shi, Meinan.,...&Yang, Tianshui.(2023).Late Miocene to Present Paleoclimatic and Paleoenvironmental Evolution of the South China Sea Recorded in the Magneto-Cyclostratigraphy of IODP Site U1505.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,38(2),20.
MLA	Nie, Yunfeng,et al."Late Miocene to Present Paleoclimatic and Paleoenvironmental Evolution of the South China Sea Recorded in the Magneto-Cyclostratigraphy of IODP Site U1505".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 38.2(2023):20.