郑州邙山官庄峪黄土地层研究

王玉振; 王书兵; 王喜生; 傅建利; 蒋复初

郑州邙山官庄峪黄土地层研究

1.
河南省信阳水文水资源勘测局, 河南信阳 464000
2.
中国地质科学院地质力学研究所, 北京 100081

基金项目:

中国地质科学院重点开放实验室专项资金资助项目 KL05-13

国家自然科学基金项目 40302025

国家自然科学基金项目 40642001

详细信息

作者简介:
王玉振(1961-), 男, 高级工程师。主要从事水文水资源分析与评价工作。E-mail:xyjwyz@126.com

通讯作者:
王书兵(1972-), 男, 副研究员。主要从事第四纪地质与环境研究工作。E-mail:wsbln@126.com

中图分类号: P642.13
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- 被引次数: 0
出版历程
- 收稿日期: 2015-02-19
- 刊出日期: 2015-09-28

STUDY ON THE GUANZHUANGYU LOESS STRATIGRAPHY IN MANGSHAN, ZHENGZHOU

1.
Henan Xinyang Hydrology and Water Resources Survey Bureau, Xinyang, Henan 464000
2.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081

摘要

摘要: 邙山官庄峪剖面共厚154.9 m, 出露S10及以上黄土-古土壤地层序列, 特征的马兰黄土厚度达70.125 m, 具有明显的粗粒、均匀特点, 且在该段地层中部, 并没有比较明显的弱古土壤层。磁性地层测量表明B/M界线置于深度132.04 m处, 位于L8的下部; 剖面底部未进入Jaramillo正极性亚时。与赵下峪剖面对比结果显示, 以B/M界线为标志, 72 m以下地层两者高度一致, 只是对地层的划分不同而已; 但赵下峪剖面中比较特征的具有较高磁化率值的L1SS1地层单元, 在官庄峪剖面却无明显表现, 其原因可能需进一步深入研究。
- 磁性地层 /
- 郑州官庄峪 /
- 邙山黄土
Abstract: The thickness of the Guanzhuangyu section in Mangshan is 154.9 m, with the loess-paleosol sequence of S10 and above exposed. The typical malan loess there is coarse grained and uniform with the layer thickness up to 70.125 m, and there is no obvious weakly developed paleosol layer in the middle of this strata. Magnetic stratigraphic measurement indicate that the boundary of B/M is located at the bottom of L8 with the depth of 132.04 m, and the bottom of the profile is not in Jaramillo. Compared with Zhaoxiayu section, it is shown that the heights of the strata below 72 m in both are highly consistent marked by the boundary of B/M, just with different stratigraphic division. However, the magnetic susceptibility values of the stratigraphic unit L1SS1 become apparently higher in Zhaoxiayu section, while there is no obvious change in Guangzhuangyu section. The reason for this phenomenon deserves further research.
- magnetostratigraphy /
- Guanzhuangyu in Zhengzhou /
- Mangshan loess

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图 1 郑州邙山官庄峪黄土-古土壤剖面磁性地层序列

Figure 1. Magnetic stratigraphic sequence of Guanzhuangyu loess-paleosol profile in Mangshan, Zhengzhou

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图 2 邙山官庄峪黄土-古土壤剖面下部B/M磁性地层序列

Figure 2. The B/M magnetic stratigraphic sequence below Guangzhuangyu loess-paleosol profile

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图 3 邙山官庄峪黄土剖面与赵下峪黄土剖面地层对比

Figure 3. Stratigraphy comparison between Guanzhuangyu loess and Zhaoxiayu loess profiles in Mangshan

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图 4 邙山官庄峪黄土剖面磁性地层与赵下峪黄土剖面磁性地层对比

Figure 4. Magnetostratigraphy comparison between Guanzhuangyu loess and Zhaoxiayu loess profiles in Mangshan

下载: 全尺寸图片幻灯片

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