| 山西临猗杨范第四纪沉积剖面初步研究 |
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| 引用本文： | 傅建利,李有利.山西临猗杨范第四纪沉积剖面初步研究[J].北京大学学报(自然科学版),2002,38(4):517-523. |
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| 作者姓名： | 傅建利 李有利 |
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| 作者单位： | 北京大学城市与环境学系，地表过程分析与模拟教育部重点实验室，北京，100871 |
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| 基金项目： | 国家自然科学基金;40071016; |
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| 摘 要： | 通过对杨范剖面黄土地层岩性特征、沉积结构、质量磁化率和频率磁化率的分析及与深海氧同位素曲线的对比，划分了剖面地层，初步确定了黄土沉积始于1.20 Ma B P,黄土沉积以来该区发生了13次大的干冷-暖湿气候变化；沉积转型指示河流强烈加积转变为河流侵蚀，代表约在1.20 Ma B P发生过一次强烈的构造抬升事件。
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| 关 键 词： | 黄土-古土壤 磁化率 气候变化 构造运动 黄河 杨范剖面 |
| 收稿时间： | 2001-07-30 |
A Study on the Yangfan Quaternary Section,Linyi,Shanxi |
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| FU Jianli\ LI Youli.A Study on the Yangfan Quaternary Section,Linyi,Shanxi[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2002,38(4):517-523. |
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| Authors: | FU Jianli\ LI Youli |
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| Institution: | MOE Laboratory for Earth Surface Processes and Department of Geography, Peking University, Beijing, 100871 |
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| Abstract: | Lithological characteristics, sedimentary structure, mass-specific magnetic susceptibility and frequency-dependent magnetic susceptibility studies and correlation to the δ18O curve of DSDP607 & V30-97 show that loess began to deposit on the terrace of the Yellow River about 1.20 Ma B P, and passed thirteen climatic changes from drier and cooler to warmer and wetter later. The turn of sedimentation from alluvium to loess, an event of transformation from accumulation to down-cut of the Yellow River, indicates a sharp tectonic uplift occurred around 1.2 Ma B P. |
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| Keywords: | loess\|paleosol susceptibility climatic changes tectonic movement Yellow River Yangfan section |
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