| 长江口水下三角洲泥质区近期沉积物粒度变化特征及其影响因素 |
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| 引用本文： | 张瑞,汪亚平,高建华,潘少明.长江口水下三角洲泥质区近期沉积物粒度变化特征及其影响因素[J].海洋地质与第四纪地质,2011(5):9-16. |
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| 作者姓名： | 张瑞 汪亚平 高建华 潘少明 |
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| 作者单位： | 淮海工学院测绘工程学院;南京大学海岸与海岛开发教育部重点实验室; |
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| 基金项目： | 国家重点基础研究发展规划项目(2002CB412401); 国家自然科学基金项目(40106009,40576040); 淮海工学院科研启动基金项目(KQ09041) |
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| 摘 要： | 河口水下三角洲是河流和海洋环境共同作用的产物,沉积地层中蕴藏了许多环境变化信息.在长江口水下三角洲泥质区采集了柱样SC09,首先利用放射性同位素210Pb确定了沉积柱样的平均沉积速率,其次对沉积柱样以0.2 cm间隔进行高分辨率取样,获得了沉积物粒度参数,然后提取了沉积物粒度敏感组分,并对其进行了经验模态分解(EMD)...
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| 关 键 词： | 粒度 粒度敏感组分 经验模态分解(EMD) 沉积速率 长江口水下三角洲 |
RECENT VARIATION IN SEDIMENT GRAIN SIZE IN THE MUD AREA OF CHANGJIANG SUBAQUEOUS DELTA AND ITS INFLUENCE FACTORS |
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| ZHANG Rui,WANG Yaping,GAO Jianhua,PAN Shaoming.RECENT VARIATION IN SEDIMENT GRAIN SIZE IN THE MUD AREA OF CHANGJIANG SUBAQUEOUS DELTA AND ITS INFLUENCE FACTORS[J].Marine Geology & Quaternary Geology,2011(5):9-16. |
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| Authors: | ZHANG Rui WANG Yaping GAO Jianhua PAN Shaoming |
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| Institution: | ZHANG Rui1,2,WANG Yaping2,GAO Jianhua2,PAN Shaoming2(1 School of Geodesy and Geomatics Engineering,Huaihai Institute of Technology,Lianyun Gang,Jiangsu,222005,2 MOE Key Laboratory of Coast and Island Development,Nanjing University,Nanjing China,210093) |
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| Abstract: | The subaqueous delta is a sink on the terrigenous clastic continental shelf.It contains tremendous information on environmental changes influenced by both the sediment supply and marine environmental dynamics.The core of SC09 was collected from the mud area of the subaqueous delta of the Changjiang River.Samples were taken for every 0.2cm of interval.Sediment grain sizes were measured by Mastersizer 2000 laser particle analyzer.Moreover,sediment grain-size sensitive populations were retrieved for analysis u... |
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| Keywords: | grain size grain-size sensitive populations Empirical Mode Decomposition(EMD) sediment rates Changjiang subaqueous delta |
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