| 鄱阳湖沉积物粒度特征及其对形成演变过程的示踪意义 |
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| 引用本文： | 董延钰,金芳,黄俊华.鄱阳湖沉积物粒度特征及其对形成演变过程的示踪意义[J].地质科技情报,2011,30(2):57-62. |
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| 作者姓名： | 董延钰 金芳 黄俊华 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室,武汉,430074 |
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| 基金项目： | 国家重点基础研究发展计划"973"项目，地质过程与矿产资源国家重点实验室专项经费项目 |
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| 摘 要： | 通过对鄱阳湖大汉湖ZK04钻孔沉积物的粒度分析,揭示了该地区沉积物粒度特征.结果表明,从湖滨到湖心沉积物粒度呈由砾石→粗砂→细砂→粉砂→黏土等逐渐变细的正旋回,其沉积时代可分为6个阶段:第1阶段(601～530 cm),M、KG、SD、SK都为曲线中最高峰,频率为4峰型,该阶段气候暖湿,彭蠡泽形成;第2阶段(530～3...
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| 关 键 词： | 粒度 鄱阳湖 沉积相 |
Poyang Lake Sediments Grain Size Characteristics and Its Tracing Implication for Formation and Evolution Processes |
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| DONG Yan-yu,JIN Fang,HUANG Jun-hua.Poyang Lake Sediments Grain Size Characteristics and Its Tracing Implication for Formation and Evolution Processes[J].Geological Science and Technology Information,2011,30(2):57-62. |
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| Authors: | DONG Yan-yu JIN Fang HUANG Jun-hua |
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| Institution: | DONG Yan-yu,JIN Fang,HUANG Jun-hua(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China) |
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| Abstract: | This paper analyzes the grain sizes of sediments from Poyang Lake to reveal the pattern of their distribution.From lake side to the middle of the lake,the grain sizes show a fining-upwards sequence decreasing from gravel,coarse sand,fine sand,silty sand to clay.Their deposition times can be divided into six different stages.In the first stage(601-530 cm),M,KG,SD and SK were all in the peak,showing the frequency curve of a four peak type.During this stage the climate of the stage was warm and wet and Pengliz... |
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| Keywords: | grain size Poyang Lake sedimentary facies |
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