气候变化领域集成服务门户(CCPortal): East Asian monsoon evolution since the late Miocene from the South China Sea

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DOI	10.1016/j.epsl.2019.115960
	East Asian monsoon evolution since the late Miocene from the South China Sea
	Gai C.; Liu Q.; Roberts A.P.; Chou Y.; Zhao X.; Jiang Z.; Liu J.
发表日期	2020
ISSN	0012821X
卷号	530
英文摘要	The South China Sea (SCS) has become a global focus for paleoclimatic and paleoceanographic studies due to its location, which makes it highly sensitive to the East Asian monsoon and to Pacific Ocean changes. We present here a refined magnetostratigraphy for the last 6.5 Ma for Hole U1431D, which was recovered during IODP Expedition 349 in the central SCS. Magnetic analyses demonstrate that magnetite is the dominant magnetic carrier except for within a greigite-bearing layer at 130.5-132.0 meters below sea floor. The greigite layer coincides with the timing of intensification of northern hemisphere glaciation and records an oceanographic response to this event. Environmental magnetic results indicate that the East Asian summer and winter monsoon were stable from 6.5 to 5 Ma. The summer monsoon intensified at 5 Ma, and then weakened gradually since 3.8 Ma. In contrast, the winter monsoon weakened at 5 Ma, and has then been enhanced since 3.8 Ma and more stable from 0.6 Ma. Spectral analysis indicates that the East Asian summer monsoon was driven directly by low-latitude insolation changes before ∼3.2 Ma, and that it has been affected by both low-latitude insolation and high-latitude ice volume changes since ∼3.2 Ma. © 2019 Elsevier B.V.
关键词	East Asian monsoon greigite IODP Site U1431 magnetostratigraphy northern hemisphere glaciation South China Sea
英文关键词	Glacial geology; Incident solar radiation; Magnetism; Magnetite; Spectrum analysis; East Asian monsoon; Greigites; IODP Site U1431; Magnetostratigraphy; Northern hemisphere glaciations; South China sea; Atmospheric thermodynamics; glaciation; greigite; magnetostratigraphy; Miocene; monsoon; Northern Hemisphere; paleoceanography; paleoclimate; Pacific Ocean; South China Sea
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202589
作者单位	State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Research School of Earth Sciences, Australian National University, ACT, 2601, Australia; Centre for Marine Magnetism (CM2), Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China; Department of Earth and Planetary Sciences, Institute of Geophysics and Planetary Sciences, University of California, Santa Cruz, CA 95064, United States; Key Laboratory of Submarine Geoscience and Prospecting Techniques, Institute for Advanced Ocean Study, College of Marine Geosciences, Ocean University of China, Qingdao, 26610...
推荐引用方式 GB/T 7714	Gai C.,Liu Q.,Roberts A.P.,et al. East Asian monsoon evolution since the late Miocene from the South China Sea[J],2020,530.
APA	Gai C..,Liu Q..,Roberts A.P..,Chou Y..,Zhao X..,...&Liu J..(2020).East Asian monsoon evolution since the late Miocene from the South China Sea.Earth and Planetary Science Letters,530.
MLA	Gai C.,et al."East Asian monsoon evolution since the late Miocene from the South China Sea".Earth and Planetary Science Letters 530(2020).