globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2013.08.014
论文题名:
Late Cenozoic sporopollen records in the Yangtze River Delta, East China and implications for East Asian summer monsoon evolution
作者: Zhang P.; Miao Y.; Zhang Z.; Lu S.; Zhang Y.; Chen H.; Li X.; Miao Q.; Feng W.; Ou J.; Gong X.; Jiang B.; Li W.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 388
起始页码: 153
结束页码: 165
语种: 英语
英文关键词: Cooling ; East Asian summer monsoon ; Late Cenozoic ; Pollen ; Tibetan Plateau ; Yangtze River Delta
英文摘要: The late Cenozoic East Asian summer monsoon (EASM) is generally linked with the Tibetan Plateau uplift and/or global cooling. In this study, four cores (ZK004, ZK005, SZ03 and SZ04) consisting of fluvial-lacustrine deposits spanning the period of ~. 8.0-0. Ma were obtained from the Yangtze River Delta, East China for sporopollen analysis to investigate trends in the EASM evolution and its driving forces. The results show that high percentages of arboreal taxa (such as Fagaceae, Ulmaceae, Juglandaceae, Taxaceae-Taxodiaceae, Liquidambar, Anacardiaceae, Rutaceae, etc.) represent a relatively warm and humid climate between ~. 8.0 and 2.6. Ma. The herb-dominated vegetation (Poceae, Asteraceae, Cyperaceae, etc.) is linked with a relatively cold and dry climate after ~. 2.6. Ma. The compiled thermophilic percentages and AP (arbors)/NAP (non-arbors) ratios of these four cores, which show that the long-term cooling and drying trends are similar to the global cooling since ~. 8.0. Ma, imply that the EASM experienced long-term weakening coincident with the global cooling. However, over this super-long time scale, the thermophilic percentages and AP/NAP ratios have remained at roughly stable levels since ~. 2.6. Ma, possibly due to the effects of the Tibetan Plateau uplifts. © 2013 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69611
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Earth Fissures Geological Disaster, Ministry of Land and Resources, Geological Survey of Jiangsu Province, Nanjing 210018, China; Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Lanzhou 730000, China; CHN Geological Survey, Beijing 100037, China; Nanjing Institute of Geology and Mineral Resources, Nanjing 210016, China

Recommended Citation:
Zhang P.,Miao Y.,Zhang Z.,et al. Late Cenozoic sporopollen records in the Yangtze River Delta, East China and implications for East Asian summer monsoon evolution[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,388
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