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伊犁黄土磁化率的增减及其成因
  • ISSN号：0023-074X
  • 期刊名称：Chinese Science Bulletin
  • 时间：0
  • 页码：2310-2321
  • 分类：P467[天文地球—大气科学及气象学]
  • 作者机构：[1]兰州大学西部环境教育部重点实验室,兰州730000, [2]Institute of Geophysics, ETH-Ztirich, CH-8092, Switzerland, [3]福建师范大学地理科学学院,福州350007, [4]Department of Environment and Geography, Macquarie University, Sydney, NSW 2109, Australia
  • 相关基金：国家自然科学基金（40830105,40772109,40721061）和中国留学基金资助致谢俄罗斯科学院西伯利亚分院地质与地球物理及矿物联合研究所的AlexeyYurievichKazansky博士和GalinaGel’evnaMatasova博士与作者就相关问题作了有益讨论,刘进峰博士完成光释光测年实验,在此谨致谢忱.
  • 相关项目：世界各地黄土磁化率与古气候不同关系机制以及古气候重建问题系统研究
作者： 陈渠|丰华|郭晖|刘秀铭|HELLER F|HIRT Ann M|吕镔|郭雪莲|毛学刚|陈家胜|赵国永|
关键词： 磁化率, 成壤增强, 黄土, 伊犁盆地, 环境磁学
中文摘要：

中国伊犁黄土磁化率一般在S0最高,但在其他古土壤层低,磁化率增减机制存在争议.对尼勒克县的一个剖面进行系统的磁学研究后发现,黄土层含有风成多畴磁铁矿,S0含有较多成壤成因的超细粒亚铁磁性矿物,其他古土壤层含有较多过湿条件下形成的非亚铁磁性矿物.非亚铁磁性矿物高含量、高矫顽力、亚铁磁性矿物低含量与较细的磁颗粒粒径对应于较高的成壤强度,揭示存在相互竞争的磁化率成壤增强过程和成壤削弱过程,以成壤削弱过程为主,导致磁化率降低.成壤削弱过程中,磁颗粒粒径发生变化.伊犁黄土磁化率变化成因多样,对磁学参数的解释要全面考虑磁性矿物的风成输入和成壤成因的磁性增强及磁性削弱作用.

同期刊论文项目
西伯利亚黄土环境磁学机制探讨
期刊论文 20
青藏高原和中东亚干旱区环境变化与地表过程研究
期刊论文 270 会议论文 2 获奖 4
世界各地黄土磁化率与古气候不同关系机制以及古气候重建问题系统研究
期刊论文 55
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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,美国数学评论（网络版）,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:81792