| 江苏兴化DS浅孔沉积物地球化学元素与粒度所揭示的古环境意义 |
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| 引用本文： | 舒强,赵志军,陈晔,张茂恒,李吉均.江苏兴化DS浅孔沉积物地球化学元素与粒度所揭示的古环境意义[J].地理科学,2009(6). |
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| 作者姓名： | 舒强 赵志军 陈晔 张茂恒 李吉均 |
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| 作者单位： | 南京师范大学地理科学学院江苏省环境演变与生态建设重点实验室;兰州大学资源环境学院; |
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| 基金项目： | 国家自然科学基金项目(40501075、40671193、40471135)资助 |
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| 摘 要： | 选择位于东亚季风典型区的苏北盆地沉降中心附近湖沼沉积为研究对象,进行了AMS14C、粒度、地球化学元素的综合分析。分析表明,末次冰消期以来苏北盆地古气候经历了冷干、暖湿、温湿、冷暖波动剧烈、暖湿的变化过程。苏北盆地DS钻孔沉积物所揭示的气候变化与贵州董歌洞石笋氧同位素数据和格陵兰冰芯数据所揭示的气候变化总体变化趋势大体一致,但在一些细部上还是存在着差异,较好的响应了区域环境和全球气候变化。
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| 关 键 词： | 地球化学元素 粒度 环境演变 苏北盆地 |
Palaeoenvironmental Significance of Geochemistry Elements and Grain Size of DS Core Sediments in Xinghua,Jiangsu Province |
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| SHU Qiang,ZHAO Zhi-jun,CHEN Ye,ZHANG Mao-heng,LI Ji-jun.Palaeoenvironmental Significance of Geochemistry Elements and Grain Size of DS Core Sediments in Xinghua,Jiangsu Province[J].Scientia Geographica Sinica,2009(6). |
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| Authors: | SHU Qiang ZHAO Zhi-jun CHEN Ye ZHANG Mao-heng LI Ji-jun |
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| Institution: | SHU Qiang1,ZHAO Zhi-jun1,CHEN Ye1,ZHANG Mao-heng1,LI Ji-jun1,2(1.College of Geography Science,Nanjing Normal University,Key Laboratory of Environmental Evolution , Ecological Construction of Jiangsu Province,Nanjing,Jiangsu 210046,2.Department of Geography,Lanzhou University,Lanzhou,Gansu 730000) |
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| Abstract: | A sediment core of the typical area of East Asian monsoon from North Jiangsu Basin was chosen for the study.Based on the analyses of geochemistry elements and grain size of DS core sediments from the basin,the paper probed into the characteristics and the environmental significance of geochemistry elements ratios and grain size.The results show that regional palaeoenvironmental changes were divided into five periods: cool and dry period of 13,700-11,310 cal a B P,and include Younger Dryas Event;warm and moi... |
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| Keywords: | geochemistry element grain size environmental changes North Jiangsu Basin |
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