caa a22 4500 44529955X CHVBK 20180317142552.0 cr unu---uuuuu 170323e20100601xx s 000 0 eng 10.1007/s11430-010-0075-2 doi (NATIONALLICENCE)springer-10.1007/s11430-010-0075-2 Climate variability recorded by n -alkanes of paleolake sediment in Qaidam Basin on the northeast Tibetan Plateau in late MIS3 [Elektronische Daten] [Yang Pu, HuCai Zhang, GuoLiang Lei, FengQin Chang, MingSheng Yang, WenXiang Zhang, YanBin Lei, LunQing Yang, YouZhi Pang] Here we combine n-alkanes preserved in a shell bar section from Qarhan paleolake, Qaidam Basin with the other sedimentary proxies to elucidate the lake evolution process during the period 39.7 to 17.5 14C ka BP (calibrated age ranges from 43.5 to 22.4 cal. ka BP). In different stages, the n-alkane homologues exhibited different distribution modes indicative of variations in the surrounding vegetation and the hydrologic condition of the lake. The n-alkanes proxies (CPI h, ACL h, P aq) have the same trends as the summer solar insolation variation, implying that the summer insolation is the most important climatic factor driving the environmental changes and also indirectly controls lake evolution on the Tibetan Plateau. CPI h and ACL h as well as the total pollen concentration appear to show a trend comparable with methane concentration record from the GRIP ice core that reflected the Dansgaard-Oeschger events. This demonstrates that the paleoclimate variations in Qarhan area generally agree with global climate change and show rapid oscillations in late MIS3. These findings provide the latest molecular fossil evidence from paleolake sediments to confirm that lake evolution on Tibetan Plateau in late MIS3 was closely associated with enhanced summer insolation. Science China Press and Springer-Verlag Berlin Heidelberg, 2010 paleolake sediment nationallicence molecular fossil nationallicence n -alkane nationallicence paleoclimate nationallicence paleoenvironment nationallicence solar insolation nationallicence Pu Yang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Zhang HuCai State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Lei GuoLiang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Chang FengQin State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Yang MingSheng Key Laboratory of Boyang Lake, MOE, School of Environmental and Chemical Engineering, Nanchang University, 330031, Nanchang, China aut Zhang WenXiang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Lei YanBin State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Yang LunQing State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Pang YouZhi State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut Science China Earth Sciences SP Science China Press 53/6(2010-06-01), 863-870 1674-7313 53:6<863 2010 53 11430 https://doi.org/10.1007/s11430-010-0075-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-0075-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pu Yang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Zhang HuCai State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Lei GuoLiang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Chang FengQin State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Yang MingSheng Key Laboratory of Boyang Lake, MOE, School of Environmental and Chemical Engineering, Nanchang University, 330031, Nanchang, China aut NATIONALLICENCE 700 1- Zhang WenXiang State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Lei YanBin State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Yang LunQing State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 700 1- Pang YouZhi State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 210008, Nanjing, China aut NATIONALLICENCE 773 0- Science China Earth Sciences SP Science China Press 53/6(2010-06-01), 863-870 1674-7313 53:6<863 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer