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题名: Late early Oligocene East Asian summer monsoon in the NE Tibetan Plateau: Evidence from a palynological record from the Lanzhou Basin, China
作者: Miao, YF; Wu, FL; Herrmann, M; Yan, XL; Meng, QQ
收录类别: SCIE
出版日期: 2013-10-05
刊名: JOURNAL OF ASIAN EARTH SCIENCES
卷号: 75, 页码:46-57
出版者: ELSEVIER
出版地: OXFORD
英文摘要: The latest Early Oligocene record from the Lanzhou Basin, northeast Tibetan Plateau, presents an opportunity to investigate early stage of the Asian monsoon patterns due to its special location. The record provides insights into the global zonal climate and the development of the non-zonal monsoon system. The study identifies possible links between factors governing the monsoonal patters and paleoaltimetry of the Tibetan Plateau. Sporomorphs results indicate the dominance of arboreal plants (both coniferous and broad-leaved) corresponding to a wetter environment, while xerophytes were rare. Based on the Coexistence Approach (CA), the climate of the Lanzhou Basin is likely to have been similar to that of present-day sites in Southeast China, i.e., characterized by relatively high precipitation and a warm climate. Both qualitative analysis of the sporomorph assemblages and quantitative calculations indicate that monsoons similar to those of the present daywere formed in East Asia and reached the Lanzhou region in inner Asia. High percentages of Picea, generally associated with the relatively high topography of the NE Tibetan Plateau, correlate well with the high paleoaltimetry of the main Tibetan Plateau during the Oligocene. Thus, the East Asian monsoon during this time can be closely linked to an uplifted Tibetan Plateau, following modeled relationships between the Tibetan Plateau and monsoon patterns. However, we believe such high precipitation may have mainly resulted from the orographic barrier, rather than being driven by zonal climate factors. Further investigation into the extent of, and controls on, the region of high precipitation should help clarify the role of these processes. (C) 2013 Elsevier Ltd. All rights reserved.
关键词: Oligocene ; Sporopollen ; East Asian monsoon ; Tibetan Plateau
作者部门: [Miao, Yunfa ; Herrmann, Mark] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China ; [Wu, Fuli] Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China ; [Herrmann, Mark] BFU Buero Umwelttechnol GmbH, Gelnhausen, Germany ; [Yan, Xiaoli ; Meng, Qingquan] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China ; Lanzhou Univ, Res Sch Arid Environm & Climate Change, Lanzhou 730000, Peoples R China
通讯作者: Wu, FL (reprint author), Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China.
学科分类: Geology
文章类型: Article
所属项目编号: Chinese Academy of Sciences [XDB03020103] ; (973) National Basic Research Program of China [2013CB956400, 2011CB403000] ; NSFC [41290252, 41172153, 41272184, 41021001] ; Foundation for Excellent Youth Scholars of CAREERI, CAS [51Y184991]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划)
项目资助者: NSFC ; MOST
语种: 英语
DOI: 10.1016/j.jseaes.2013.07.003
ISSN号: 1367-9120
WOS记录号: WOS:000324961400006
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/120323
Appears in Collections:资源环境学院_期刊论文

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Recommended Citation:
Miao, YF,Wu, FL,Herrmann, M,et al. Late early Oligocene East Asian summer monsoon in the NE Tibetan Plateau: Evidence from a palynological record from the Lanzhou Basin, China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2013,75:46-57.
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