摘要
中国黄土-古土壤-红黏土序列完整记录了7.5 Ma以来东亚季风演化历史。黄土-古土壤的低频磁化率已成为东亚夏季风演化的代用指标之一,并得到广泛的应用和全球对比。虽然古土壤磁化率增强的成土观点已得到广泛认可,但磁化率与成壤强度的相关性还不是十分清楚,磁化率应用方面仍存在问题。磁化率与成壤强度、生物化学作用和古气候关系尚在研究中。
The eolian sequences including the Cenozoic red clay deposits and the Quaternary loess-paleosol sedimentary have documented the history of East Asian monsoon evolution of the past 7. 5Ma in the Chinese Loess Plateau. The magnetic susceptibility （MS） as a climate proxy of the East Asian summer monsoon has been widely used in-comparison for global paleoclimate investigation. Though the pedogenic origin of paleosol magnetic susceptibility enhancement is widely accepted, the connection between magnetic susceptibility and pedogenesis degree is still not fully understood and many problems remain in applying MS to reconstruction of paleoclimate. The process whereby climate change and biochemistry are encoded in loess magnetism is being observed.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第9期1057-1062,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(40472052
40472026)
安徽省高等学校青年教师科研计划资助项目(2005jq1023)
关键词
风尘序列
环境磁学
磁化率
古气候
eolian sequence
environmental magnetism
magnetic susceptibility
paleoclimate
