| 殷墟地区土壤剖面磁化率变化特征 |
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| 引用本文： | 张振卿,许清海,贾红娟.殷墟地区土壤剖面磁化率变化特征[J].地理与地理信息科学,2006,22(6):94-97. |
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| 作者姓名： | 张振卿 许清海 贾红娟 |
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| 作者单位： | 河北师范大学资源与环境科学学院,河北,石家庄,050016 |
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| 基金项目： | 国家自然科学基金项目(40571166)，加拿大社会科学和人文科学基金项目(129140)，国家教委博士点基金项目(20050094004)，河北师范大学博士基金项目 |
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| 摘 要： | 对殷墟地区3个土壤剖面的岩性分析和磁化率测试发现,岩性和磁化率变化均存在较好的一致性。根据岩性将剖面分为上中下三层,上层为现代农业耕作层,由于人类活动扰动剧烈,磁化率变化复杂(该文未作讨论);中层为河流相沉积物形成的亚粘土层,该层磁化率明显偏高(除地表耕作层外,3个剖面的磁化率最高值均出现在该层)且变化剧烈,可能是由于沉积物来源及沉积动力而导致磁性矿物含量及排列方式变化引起的;下层为灰黑色古土壤层,磁化率值明显低于其他层位且波动较小,有别于目前黄土—古土壤序列研究中古土壤磁化率增强的古土壤成因模式,其原因有待进一步研究。剖面的总体磁化率变化幅度较大,且从表层向下有降低的趋势,可能是由于沉积物磁化率的埋藏效应所致。
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| 关 键 词： | 殷墟 古土壤 磁化率 |
| 文章编号： | 1672-0504(2006)06-0094-04 |
| 收稿时间： | 2006-07-05 |
| 修稿时间： | 2006-08-18 |
Study on Magnetic Susceptibility of Soil Profile in the Area of Yin Ruins |
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| ZHANG Zhen-qing,XU Qing-hai,JIA Hong-juan.Study on Magnetic Susceptibility of Soil Profile in the Area of Yin Ruins[J].Geography and Geo-Information Science,2006,22(6):94-97. |
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| Authors: | ZHANG Zhen-qing XU Qing-hai JIA Hong-juan |
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| Institution: | College of Resource and Environment Sciences, Hebei Normal University, Shijiazhuang 050016, China |
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| Abstract: | Analysis on lithology and magnetic susceptibility of three soil profiles in the area of Yin Ruins,reveals that the soil profiles can be divided into three parts.The upper part of the profiles is cultivable soil,it is influenced by human's activities severely and the magnetic susceptibility is complex.The middle part is sandy clay formed by alluvial sediment.In this part,the magnetic susceptibility is obviously higher than the other parts,and fluctuates seriously,as the result of the changes of contents and the arrange of magnetism mineral caused by the origin sediment.The lower part is gray and black paleosol,and the magnetic susceptibility in this part is lower than other parts and hardly fluctuate,which is different from present magnetic susceptibility characteristic in loess regions.The reason is uncertain now.The magnetic susceptibility of the three soil profiles changes largely in whole,and the magnetic susceptibility becomes lower with the depth increasing,it may be by the effect of imbedding. |
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| Keywords: | Yin Ruins paleosol magnetic susceptibility |
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