Advances in Earth Science ›› 2021, Vol. 36 ›› Issue (7): 727-739. doi: 10.11867/j.issn.1001-8166.2021.056

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Progress of Environmental Change in the Northeastern Tibetan Plateau Since Late Pleistocene

Siyin KE 1, 2, 3( ),Dongli ZHANG 1, 2, 3,Weitao WANG 1, 2, 3( ),Menghao WANG 1, 2, 3,Lei DUAN 1, 2, 3,Jingjun YANG 1, 2, 3,Xin SUN 1, 2, 3,Wenjun ZHENG 1, 2, 3   

  1. 1.Guangdong Provincial Key Laboratory of Geodynamics and Geohazards,School of Earth Sciences and Engineering,Sun Yat-sen University,Guangzhou 510275,China
    2.Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai),Zhuhai Guangdong 519082,China
    3.State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beijing 100029,China
  • Received:2021-04-09 Revised:2021-05-24 Online:2021-07-10 Published:2021-08-20
  • Contact: Weitao WANG;
  • About author:KE Siyin (1996-), female, Maoming City, Guangdong Province, Master student. Research areas include quaternary sediments and environment. E-mail:
  • Supported by:
    the Second Tibetan Plateau Scientific Expedition and Research "Active faults and earthquake disasters"(2019QZKK0901);The National Natural Science Foundation of China "Seismic risk assessment and damage scenario prediction of coastal fault zone based on 3D structural model"(41774049)

Siyin KE,Dongli ZHANG,Weitao WANG,Menghao WANG,Lei DUAN,Jingjun YANG,Xin SUN,Wenjun ZHENG. Progress of Environmental Change in the Northeastern Tibetan Plateau Since Late Pleistocene[J]. Advances in Earth Science, 2021, 36(7): 727-739.

The northeastern Tibetan Plateau is an ideal area to study the environmental changes in the East Asian monsoon marginal zone, and its rich sedimentary records can reflect the detailed environmental change process. The main research progress of sedimentation environment evolution on the northeastern Tibetan Plateau during the past 30 years is summarized, focusing on the chronological frame, the proxies for environmental research, environmental evolution process and the regional consistency of environmental changes in the northeastern Tibetan Plateau. The grain size, magnetic susceptibility and geochemical indicators dominated by carbonate content, total organic carbon and major and minor elements are the most commonly research methods in environmental studies in the northeastern Tibetan Plateau. Based on the research results of sedimentary environment since Late Pleistocene, the evolution process can be divided into five stages, which experienced the development stages of being warm and humid cold and dry, slightly warm and humid, slightly cold and dry then slightly moderate-wet, relatively moderate warm and humid then moderate cold and dry with the common influence of East Asian monsoon and west wind. The climate records of the northeastern margin of the Qinghai-Tibet Plateau are regional compared with those of Asia and the world, and the main factors may be driven by the change of solar radiation in the northern hemisphere and the North Atlantic thermohaline circulation. The research shows that there may be two periods of high lake level with large area, namely MIS 3 and MIS 5 stages. The difference of times shows that the occurrence time of high lake level becomes younger from the interior of the Tibetan Plateau to the northeast, which may reflect a response of tectonic and environmental changes in the northeastern Tibetan Plateau. In conclusion, the further environmental research on the northeastern Tibetan Plateau may focus on the establishment of high-resolution sedimentary sequence, the time of high lake level and the application of more accurate environmental proxies, in order to obtain higher resolution environmental change information.

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