| 中国东海北部泥质区敏感粒度组分对东亚季风演变的响应 |
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| 引用本文： | 孙晓燕,李希彬,岳晓峰,门翔.中国东海北部泥质区敏感粒度组分对东亚季风演变的响应[J].海洋通报(英文版),2011,13(2):1-12. |
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| 作者姓名： | 孙晓燕 李希彬 岳晓峰 门翔 |
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| 作者单位： | 1. 国家海洋信息中心,天津,300171
2. 国家海洋局天津海洋环境监测中心站,天津,300451 |
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| 摘 要： | 本文运用粒级一标准偏差方法对FJ04孔146cm以上部分进行敏感粒度组分分析与提取，证明选取的敏感粒度组分是本区重要的环境替代性指标，其平均粒径的变化可以用来指示东亚季风的强弱。获得了东海北部泥质区3ka以来东亚冬季风强度的演化过程，结果表明东亚季风经历了两个主要的演变阶段：①3．1．15kaB．P．为东亚冬季风较弱，...
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| 关 键 词： | 东海陆架 泥质区 敏感粒度组分 东亚冬季风 |
Response of environmental sensitive grain size group in Core F J04 from mud area in the north of East China Sea to East Asian winter monsoon evolvement |
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| SUN Xiao-yan,LI Xi-bin,YUE Xiao-feng,MEN Xiang.Response of environmental sensitive grain size group in Core F J04 from mud area in the north of East China Sea to East Asian winter monsoon evolvement[J].Marina Science Bulletin,2011,13(2):1-12. |
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| Authors: | SUN Xiao-yan LI Xi-bin YUE Xiao-feng MEN Xiang |
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| Institution: | 1. National Marine Data and Information Service, Tianjin 300171, China; 2. Tianjin Marine Environmental Monitoring Central Station, State Oceanic Association (SOA), Tianjin 300451, China; 3. Tianjin Marine Environmental Monitoring and Forecasting Center, Tianjin 300451, China; |
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| Abstract: | AMS14C dating and grain-size analysis for Core FJ04, located at mud area in the North of East China Sea provide us a high-resolution grain-size distribution curve varying with depth and time. This paper got environmental sensitive grain-size group by using standard deviation method, and proved that the selected sensitive grain-size group is an important proxy which can be used to reconstruct intensity of East Asian Winter Monsoon （EAWM）. Then we got reconstruction of EAWM evolvement since 3 ka B.P., which revealed two main phases： （1） 3 - 1.15ka B.P., relative weak EAWM with middle frequency fluctuation; （2） 1.15 - 0ka B.P., really strong EAWM with high frequency fluctuation. And 1.15 ka B.P. is a distinct turning point. During the whole period, 11 intense events of EAWM were recorded and correlated well with other climate records, but the response extent was different, which showed consistency of climate change and particularity of region response. |
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| Keywords: | shelf of East China Sea mud area sensitive grain size group East AsianWinter Monsoon |
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