East Asian monsoon evolution since the late Miocene from the South China Sea

Gai, Congcong1,2,3; Liu, Qingsong4,5; Roberts, Andrew P.3; Chou, Yumin4; Zhao, Xixi6,7; Jiang, Zhaoxia5,8; Liu, Jianxing5,9

2020

10.1016/j.epsl.2019.115960

EARTH AND PLANETARY SCIENCE LETTERS   影响因子和分区

0012-821X

1385-013X

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.

magnetostratigraphy South China Sea northern hemisphere glaciation East Asian monsoon IODP Site U1431 greigite

EI ; SCI

英语

NI论文

通讯

National Basic Research Program of China (973 Program)[2016YFA0601903] ; Australian Research Council[DP160100805] ; Natural Science Foundation of Shandong Province[] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-03] ; China Scholarship Council[[2017]3109] ; [U1606401] ; [EAR-1250444] ; National Natural Science Foundation of China[91858108]

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:000508747300001

Elsevier B.V.

20195007802577

Glacial geology ; Incident solar radiation ; Magnetism ; Magnetite ; Spectrum analysis

Atmospheric Properties:443.1 ; Geology:481.1 ; Solar Energy and Phenomena:657.1 ; Magnetism: Basic Concepts and Phenomena:701.2

GEOSCIENCES

EV Compendex

1.State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing; 100029, China
2.College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing; 100049, China
3.Research School of Earth Sciences, Australian National University, ACT; 2601, Australia
4.Centre for Marine Magnetism (CM2), Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen; 518055, China
5.Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao; 266237, China
6.State Key Laboratory of Marine Geology, Tongji University, Shanghai; 200092, China
7.Department of Earth and Planetary Sciences, Institute of Geophysics and Planetary Sciences, University of California, Santa Cruz; CA; 95064, United States
8.Key Laboratory of Submarine Geoscience and Prospecting Techniques, Institute for Advanced Ocean Study, College of Marine Geosciences, Ocean University of China, Qingdao; 266100, China
9.Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao; 266061, China

Gai, Congcong,Liu, Qingsong,Roberts, Andrew P.,et al. East Asian monsoon evolution since the late Miocene from the South China Sea[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,530.

Gai, Congcong.,Liu, Qingsong.,Roberts, Andrew P..,Chou, Yumin.,Zhao, Xixi.,...&Liu, Jianxing.(2020).East Asian monsoon evolution since the late Miocene from the South China Sea.EARTH AND PLANETARY SCIENCE LETTERS,530.

Gai, Congcong,et al."East Asian monsoon evolution since the late Miocene from the South China Sea".EARTH AND PLANETARY SCIENCE LETTERS 530(2020).