中国黄土沉积物的磁性增强机制进展

摘要

中国黄土沉积物很好地记录了第四纪以来丰富的地磁场和古气候信息,岩石磁学、环境磁学在第四纪古环境研究中扮演着及其重要的角色.通过回顾近年来中国黄土沉积物研究取得的一系列成果,总结黄土沉积物磁性增强的主导机制,并提出黄土研究中今后应注意的问题,如成土作用、埋藏、浅育化作用等对剩磁记录的影响和磁学信息的分离等.%The Chinese loess-paleosol sequences contain continuous geomagnetic field and paleoclimate records during the Quaternary. Rock magnetism and environmental magnetism play a very important role in the Quaternary paleoclimate study of Chinese loess-paleosol sequences. This review focuses on recent achievements in magnetic enhancement mechanism of loess-paleosol sequences. In addition, special attentions are also paid to the effect of pedogenic process and bury condition on magnetic remanence records, and separation of different magnetic signals.