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| 郑州全新世黄土的颗粒形态特征及其环境意义 | |
| 引用本文： | 庞奖励,黄春长,查小春,祝一志.郑州全新世黄土的颗粒形态特征及其环境意义[J].地理科学,2008,28(5). |
| 作者姓名： | 庞奖励 黄春长 查小春 祝一志 |
| 作者单位： | 1. 陕西师范大学旅游与环境学院,陕西,西安,710062;中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西,西安,710075 2. 陕西师范大学旅游与环境学院,陕西,西安,710062 3. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西,西安,710075 |
| 基金项目： | 国家自然科学基金项目(40471119,40571154);;黄土与第四纪地质国家重点实验室基金(SKLLQG0604);;陕西省自然基金(2006D01)项目资助 |
| 摘 要： | 用偏光显微镜和图像处理软件对黄土颗粒形态进行观察和定量分析，用激光粒度仪测量黄土的粒度分布。结果表明：郑州地区黄土中颗粒的一般呈次圆状-圆状，具有较高的圆度和球度；矿物组合以石英和长石占绝对优势，但郑州黄土中石英／长石比值和C／F（10μm）值高于关中黄土；郑州黄土粒度峰值集中在50～80μm且曲线形态较陡，而关中黄土粒度峰值在20～40μm且曲线形态较缓。综合分析认为，郑州地区黄土可能来源于孟津以东的黄河冲积扇，应属于近源黄土。 |
| 关 键 词： | 颗粒形态 黄土 郑州地区 关中地区 |
Micromorphological Features of Particlesof Holocence Loess at Zhengzhou Areas, China and Their Environmental Significance |
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| PANG Jiang-Li,HUANG Chun-Chang,CHA Xiao-Chun,ZHU Yi-Zhi.Micromorphological Features of Particlesof Holocence Loess at Zhengzhou Areas, China and Their Environmental Significance[J].Scientia Geographica Sinica,2008,28(5). | |
| Authors: | PANG Jiang-Li HUANG Chun-Chang CHA Xiao-Chun ZHU Yi-Zhi |
| Institution: | 1.College of Tourism and Environmental Sciences;Shaanxi Normal University;Xi'an;Shaanxi 710062;2.State Key Laboratory of Loess and Quaternary Geology;Institute of Earth Environment;Chinese Academy of Sciences;Shaanxi 710075 |
| Abstract: | Using the particle data obtained from the Holocene soil profile at LGT,JYC sites in the Guanzhong area and at PLG,SBLH sites in the Zhengzhou,this article attempts to illustrate the material source of Zhengzhou loess and its environmental significance.The micromorphology was observed under a petrographic microscope,and its image was quantificationally measured by NIKON NIS-ELments BR2.2 software.Particle size distribution was determined by a Malvern Mastersizer-S and with Na4P2O7 as a dispersant.Micromorpho... |
| Keywords: | micromorphology grain loess Zhengzhou Guanzhong |
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