曹岘黄土和小良山红土剖面磁化率解释机制的差异

摘要

Because of fastly,conveniently,and nondestructivly,magnetic susceptibility,it had been widely used as a research method to indicate paleoenvironment,and played an important role in analyzing the moving,transforming of magnetic minerals in environment system and then got a series of research achievement.In fact,the influence factors of magnetic susceptibility were various,so when analyzing paleoenvironment by use of magnetic susceptibility data,it should be necessary to prudently use and combine with other experiment data,especially pay more attention to the magnetic susceptibility＇s response to different sedimentary types.In order to analyse the instruction meaning of paleoenvironment by useing of magnetic susceptibility,two different sedimentary types has been chosen in this paper,which are loess and laterite,we can know the instruction meaning of magnetic susceptibility of different sedimentary types,and load a foundation to correctly analyse magnetic susceptibility.%磁化率因其磁测方法快捷、简便和没有破坏性的优点,作为一种研究手段以利用环境物质的磁性来恢复古环境,分析磁性矿物在环境系统中的迁移、转化和组合规律等方面,得到了快速而广泛的应用,取得了一系列研究成果。事实上影响沉积物磁化率的因素是多种多样的,因此在具体应用磁化率分析古环境上要持慎重态度,并结合其他实验结果进行解释,尤其要注意沉积类型的差别对解释磁化率结果的影响。为进一步分析磁化率对古环境的指示意义,本文选取黄土和红土两种沉积类型进行磁化率测试,了解不同类型沉积物的磁化率指示意义,为正确解析磁化率提供依据。