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Magnetic parameter variations in the Chaona loess/paleosol sequences in the central Chinese Loess Plateau, and their, significance for the middle Pleistocene climate transition
Song, YG (Song, Yougui)[ 1,2 ]; Fang, XM (Fang, Xiaomin)[ 2,3 ]; King, JW (King, John W.)[ 4 ]; Li, JJ (Li, Jijun)[ 2 ]; Naoto, I (Naoto, Ishikawa)[ 5 ]; An, ZS (An, Zhisheng)[ 1 ]
2014-05-15
Source PublicationQUATERNARY RESEARCH
Volume81Issue:3Pages:433-444
Subtype期刊论文
Abstract

A high-resolution rock magnetic investigation was performed on the Chaona Quaternary loess/paleosol sequences in the Central Chinese Loess Plateau. Based on a newly developed independent unturned time scale and magnetic records, we reconstructed the history of the East Asia monsoons during the last 3 Ma and explored the middle Pleistocene climate transition (MPT). Rock magnetic results show that the loess layers are characterized by relatively high coercivity and remanent coercivity, lower magnetic susceptibility (MS), and that the paleosol layers are characterized by relatively high MS, saturation magnetization and remanent saturation magnetization. Spectrum analyses indicate that there are various periods in addition to orbital periodicities. According to the onset and stable appearance of 100 kyr period, we consider that the MPT recorded in this section began at similar to 1.26 Ma and was completed by similar to 0.53 Ma, which differs from previous investigations based on orbitally tuned time scales. The forcing mechanism for the MPT was more complicated than just the orbital forcing. We conclude that the rapid uplift of the Tibetan Plateau may have played an important role in the shift of periodicities during the middle Pleistocene.

KeywordRock Magnetism Loess–paleosol Sequence East Asian Monsoon History Middle-pleistocene Climatic Transition
DOI10.1016/j.yqres.2013.10.002
Indexed BySCI ; EI
Language英语
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9783
Collection古环境研究室
Corresponding AuthorSong, YG (Song, Yougui)[ 1,2 ]
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth and Environment, Chinese Academy of Sciences, Xi'an 710075, China;
2.Key Laboratory of Western China's Environmental Systems, Ministry of Education of China, Lanzhou 730000, China;
3.Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;
4.Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, USA;
5.Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
Recommended Citation
GB/T 7714
Song, YG ,Fang, XM ,King, JW ,et al. Magnetic parameter variations in the Chaona loess/paleosol sequences in the central Chinese Loess Plateau, and their, significance for the middle Pleistocene climate transition[J]. QUATERNARY RESEARCH,2014,81(3):433-444.
APA Song, YG ,Fang, XM ,King, JW ,Li, JJ ,Naoto, I ,&An, ZS .(2014).Magnetic parameter variations in the Chaona loess/paleosol sequences in the central Chinese Loess Plateau, and their, significance for the middle Pleistocene climate transition.QUATERNARY RESEARCH,81(3),433-444.
MLA Song, YG ,et al."Magnetic parameter variations in the Chaona loess/paleosol sequences in the central Chinese Loess Plateau, and their, significance for the middle Pleistocene climate transition".QUATERNARY RESEARCH 81.3(2014):433-444.
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