| 东海浪岗山岛屿黄土的粒度组成及风尘特征 |
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| 引用本文： | 刘飞,郑祥民,曹希强.东海浪岗山岛屿黄土的粒度组成及风尘特征[J].华东师范大学学报(自然科学版),2007,2007(4):49-55. |
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| 作者姓名： | 刘飞 郑祥民 曹希强 |
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| 作者单位： | 1. 华东师范大学,教育部地理信息科学重点实验室,上海,200062
2. 河南省国土资源科学研究院,郑州,450053 |
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| 摘 要： | 通过对东海浪岗山岛屿黄土的系统采样和粒度测试分析，并与其他地方黄土充分对比，讨论了浪岗山第四纪风尘沉积的粒度特征.浪岗山黄土剖面粒度垂向变化不大.小于5 μm颗粒平均含量为24.9%.10~50 μm粒组富集，分布均匀，符合黄土的风成特性.但粗颗粒（>50 μm）含量均超过10%，高于西部黄土的粗颗粒含量.显示该剖面除了接受来自西北内陆的远源风尘物质外，还接受来自沉积区附近的“近源”风尘物质.
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| 关 键 词： | 黄土 粒度 风尘特征 浪岗山列岛 东海 黄土 粒度 风尘特征 浪岗山列岛 东海 |
| 文章编号： | 1000-5641（2007）04-0049-07 |
| 收稿时间： | 2006-2-1 |
| 修稿时间： | 2006-02 |
Grain Size Distribution and Aeolian Feature of Loess on the Langgangshan Island in East China Sea(Chinese) |
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| LIU Fei,ZHENG Xiang-min,CAO Xi-qiang.Grain Size Distribution and Aeolian Feature of Loess on the Langgangshan Island in East China Sea(Chinese)[J].Journal of East China Normal University(Natural Science),2007,2007(4):49-55. |
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| Authors: | LIU Fei ZHENG Xiang-min CAO Xi-qiang |
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| Institution: | 1. Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal university, Shanghai 200062, China; 2. Academy of Land and Resources od Henan Province, Zhengzhou 450053,China |
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| Abstract: | On the basis of systematic sampling and analysis of grain size of loess on Langgangshan Island in East China Sea, features of component were discussed. The Aeolian dust deposition on Langgangshan Island mainly consists of fine particles(10~50 μm),which is similar to the component of loess in other sections of China but comparatively coarser. The average content of clay is 24.9% and coarse particles (>50 μm) on Langgangshan Island section is over 10%, which indicates that the materials of source contain proximal aeolian dust from shelf area of East China Sea in addition to distant aeolian dust from Northwest China. |
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| Keywords: | loess grain size aeolian feature Langgangshan Island East China Sea |
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