caa a22 4500 606149376 CHVBK 20210128100533.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00531-015-1161-7 doi (NATIONALLICENCE)springer-10.1007/s00531-015-1161-7 Geochemical evidence for Holocene millennial-scale climatic and environmental changes in the south-eastern Mu Us Desert, northern China [Elektronische Daten] [Bing Liu, Heling Jin, Liangying Sun, Zhong Sun, Shuang Zhao] Deserts and sandylands that are located in the semi-arid and arid regions in the middle latitudes of the Northern Hemisphere are usually regarded as environmentally sensitive change belts which respond to global climatic change. In northern China, activation or immobilization of sand dunes is mainly influenced by humid and dry variation and is related to stronger or weaker Asian monsoons. In this paper, the history of Holocene millennial-scale climatic and environmental change is reconstructed by the systematic analysis of the geochemical element contents and parameters, along with the OSL and 14C chronologies, from the different lithologies of the palaeosol-aeolian sand sequence in the south-eastern Mu Us Desert, northern China. Our results indicate that the region was dominated by a dry climate with intensive aeolian activity before 7.2ka BP, and there was an optimal humid climate and fixed desert in 7.2-4.6ka. Afterwards, the dune fields became mobile again as the effective humidity declined. Additionally, six dry events were discovered with times of ~7.2, 7.0-6.8, 6.6-5.7, 4.6-4.1, 3.7-3.5, and 3.3-2.5ka, which were not only coincident with the intervals of millennial-scale weaker Asian summer monsoons, but also accordant with the cold events evidenced in the ice cores and deep-sea deposits of the high latitudes in the Northern Hemisphere. In general, the Holocene climatic and environmental changes had the characteristics of the "monsoonal mode” and "abrupt millennial-scale oscillation” in the Mu Us Desert. Springer-Verlag Berlin Heidelberg, 2015 Holocene nationallicence Climatic and environmental change nationallicence Monsoon mode nationallicence Millennial-scale oscillation nationallicence Mu Us Desert nationallicence Liu Bing Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut Jin Heling Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut Sun Liangying Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut Sun Zhong Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut Zhao Shuang Key Laboratory of Western China Environmental System (Ministry of Education), Lanzhou University, 730000, Lanzhou, People's Republic of China aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/7(2015-10-01), 1889-1900 1437-3254 104:7<1889 2015 104 531 https://doi.org/10.1007/s00531-015-1161-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-015-1161-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Bing Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Jin Heling Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Sun Liangying Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Sun Zhong Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Zhao Shuang Key Laboratory of Western China Environmental System (Ministry of Education), Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/7(2015-10-01), 1889-1900 1437-3254 104:7<1889 2015 104 531