华东师范大学学报(自然科学版) ›› 2007, Vol. 2007 ›› Issue (4): 49-55.

• 地理学 河口海岸学 • 上一篇    下一篇

东海浪岗山岛屿黄土的粒度组成及风尘特征

刘 飞1，郑祥民1，曹希强2   

  1. 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
  • 收稿日期:2006-02-01 修回日期:2006-06-20 出版日期:2007-07-25 发布日期:2007-07-25
  • 通讯作者: 郑祥民

Grain Size Distribution and Aeolian Feature of Loess on the Langgangshan Island in East China Sea(Chinese)

LIU Fei1, ZHENG Xiang-min1, CAO Xi-qiang2   

  1. 1.Key Laboratory of Geographic Information Science, Ministry of Education， East China Normal University, Shanghai 200062, China； 2.Academy of Land and Resources of Henan Province, Zhengzhou 450053, China
  • Received:2006-02-01 Revised:2006-06-20 Online:2007-07-25 Published:2007-07-25
  • Contact: ZHENG Xiang-min

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.

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

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.

Key words: grain size, aeolian feature, Langgangshan Island, East China Sea, loess, grain size, aeolian feature, Langgangshan Island, East China Sea