【摘 要】
：
通过将X归一化NRM300(样品天然剩磁(NRM)经300℃热退磁后的剩磁强度)构建的RPI记录与可信赖的海洋RPI曲线进行比较，发现来自成土作用较弱的宝鸡剖面，其RPI在峰、谷以及变化趋势上与海洋RPI曲线均具有很好的可比性，可能反映了古地磁场强度的变化;而来自成土作用较强的西峰剖面，其RPI记录与宝鸡黄土RPI记录以及海洋RPI曲线均不一致，暗示来自成土作用较强的古土壤沉积物，其RPI变化很可
【机 构】
：
中国地质大学地质过程与矿产资源国家重点实验室 北京100083;中国地质大学(北京)地球科学与资源学院 北京100083
【出 处】
：
中国地球物理学会第二十六届年会暨中国地震学会第十三次学术大会
论文部分内容阅读
通过将X归一化NRM300(样品天然剩磁(NRM)经300℃热退磁后的剩磁强度)构建的RPI记录与可信赖的海洋RPI曲线进行比较，发现来自成土作用较弱的宝鸡剖面，其RPI在峰、谷以及变化趋势上与海洋RPI曲线均具有很好的可比性，可能反映了古地磁场强度的变化;而来自成土作用较强的西峰剖面，其RPI记录与宝鸡黄土RPI记录以及海洋RPI曲线均不一致，暗示来自成土作用较强的古土壤沉积物，其RPI变化很可能没有完全去除成土作用(古气候)的影响，因此并不反映古地磁场强度的变化。
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