https://scholars.lib.ntu.edu.tw/handle/123456789/440449
標題: | Stalagmite-inferred variability of the Asian summer monsoon during the penultimate glacial-interglacial period | 作者: | Li, T.-Y. Shen, C.-C. Huang, L.-J. Jiang, X.-Y. Yang, X.-L. Mii, H.-S. Lee, S.-Y. LI LO CHUAN-CHOU SHEN |
公開日期: | 2014 | 卷: | 10 | 期: | 3 | 起(迄)頁: | 1211-1219 | 來源出版物: | Climate of the Past | 摘要: | The orbital-timescale dynamics of the Quaternary Asian summer monsoons (ASM) are frequently attributed to precession-dominated northern hemispheric summer insolation. However, this long-term continuous ASM variability is inferred primarily from oxygen isotope records of stalagmites, mainly from Sanbao cave in mainland China, and may not provide a comprehensive picture of ASM evolution. A new spliced stalagmite oxygen isotope record from Yangkou cave tracks summer monsoon precipitation variation from 124 to 206 thousand years ago in Chongqing, southwest China. Our Yangkou record supports that the evolution of ASM was dominated by the North Hemisphere solar insolation on orbital timescales. When superimposed on the Sanbao record, the precipitation time series referred from Yangkou cave stalagmites supports the strong ASM periods at marine isotope stages (MIS) 6.3, 6.5, and 7.1 and weak ASM intervals at MIS 6.2, 6.4, and 7.0. This consistency confirms that ASM events affected most of mainland China. Except for the solar insolation forcing, the large amplitude of minimum Î́18O values in Yangkou record during glacial period, such as MIS 6.5, could stem from the enhanced prevailing Pacific trade wind and/or continental shelf exposure in the Indo-Pacific warm pool. © 2014 Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903482585&doi=10.5194%2fcp-10-1211-2014&partnerID=40&md5=5328026ece5d3347e96d2675cb37189b https://scholars.lib.ntu.edu.tw/handle/123456789/440449 |
DOI: | 10.5194/cp-10-1211-2014 | SDG/關鍵字: | climate variation; glacial-interglacial cycle; insolation; marine isotope stage; monsoon; oxygen isotope; paleoclimate; Quaternary; stalagmite; time series; trade wind; warm pool; China; Chongqing; Hubei; Sanbao Cave |
顯示於: | 地質科學系 |
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