| 黄土中宇宙成因核素10Be示踪古地磁场变化研究进展 |
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| 引用本文： | 赵国庆,周卫健,武振坤,鲜锋,孔祥辉,张丽.黄土中宇宙成因核素10Be示踪古地磁场变化研究进展[J].地球科学进展,2010,25(9):927-933. |
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| 作者姓名： | 赵国庆 周卫健 武振坤 鲜锋 孔祥辉 张丽 |
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| 作者单位： | 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;西安加速器质谱中心;中国科学院研究生院;西安交通大学; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 宇宙成因核素10Be示踪古地磁场的研究在海洋和冰芯研究中得到了广泛应用,然而受黄土来源及沉降过程的复杂性制约,运用中国黄土10Be示踪古地磁场变化的研究直到近年来才取得突破进展.综述了黄土10Be的研究现状并指出将其应用于地磁场示踪研究存在的关键问题,重点介绍了为分离黄土10Be浓度记录所包含的气候因素和地磁场影响因素而建立的LGM分离方法、剩磁矫顽力估算模型方法和"平均值概念"方法.各种创新数理方法的建立基本解决了黄土10Be示踪古地磁场的科学难题,使黄土10Be示踪古地磁场变化研究成为可能.
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| 关 键 词： | 黄土 10Be 环境示踪 古地磁 |
Progress of Tracing Paleo-geomagnetic Field from Cosmogenic Nuclide 10Be in Loess of China |
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| ZHAO Guoqing,ZHOU Weijian,WU Zhenkun,XIAN Feng,KONG Xianghui,ZHANG Li.Progress of Tracing Paleo-geomagnetic Field from Cosmogenic Nuclide 10Be in Loess of China[J].Advance in Earth Sciences,2010,25(9):927-933. |
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| Authors: | ZHAO Guoqing ZHOU Weijian WU Zhenkun XIAN Feng KONG Xianghui ZHANG Li |
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| Institution: | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi′an 710075, China;
2. Xi′an Accelerator Mass Spectrometry Center, Xi′an 710061, China;;
3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;;
4. Xi′an Jiaotong University, Xi′an 710049, China |
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| Abstract: | The study of the paleo-geomagnetic tracing using cosmogenic nuclide 10Be derived from the marine and ice core sediments has been widely applied.However,limited by the complexity of loess sources and the process of depositing,the investigation of 10Be in Chinese loess lags behind until mathematical methods were established recent years.The research status of 10Be in Chinese loess is introduced.Three new methods for tracing paleo-geomagnetic field variability are focused: The separation method of established ... |
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| Keywords: | Loess 10Be Environment tracer Paleo-geomagnetic |
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