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- W1520452663 abstract "选择位于南沙台地的NS93-5钻孔进行地磁场相对强度的研究.根据氧同位素地层学(MIS1～MIS5),建立130 ka以来的沉积序列.岩石磁场研究表明,沉积物中的磁性矿物主要为1～15μm的细粒磁铁矿,磁性矿物浓度的变化在同一数量级之内,而且沉积物磁性比较稳定.选择NRM/x作为相对磁场强度的估计指标,发现在10～100ka时间尺度上,可以很好地进行全球对比,千年时间尺度上尽管有一定的误差,但也可以进行有效对比.130ka以来,有4次强度变化的低谷,分别发生在32.5～40 ka、44～52.5 ka、6" @default.
- W1520452663 created "2016-06-24" @default.
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- W1520452663 date "2006-01-10" @default.
- W1520452663 modified "2023-09-23" @default.
- W1520452663 title "近130 ka以来地球磁场相对强度变化:南海南部NS93-5钻孔记录" @default.
- W1520452663 hasPublicationYear "2006" @default.
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