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首页> 外文期刊>Chinese science bulletin >Relative paleointensity of the geomagnetic field during the past 0.8 Ma from Nihewan Basin, Hebei Province, China
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Relative paleointensity of the geomagnetic field during the past 0.8 Ma from Nihewan Basin, Hebei Province, China

机译：河北省泥河湾盆地近0.8 Ma以来地磁场的相对古强度

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摘要

We conducted a detailed rock magnetic study on upper 80 m of Jing'erwa core from the Nihewan basin. The results indicate that the sediments from Jing'erwa core are suitable for relative paleointensity study, and anhysteretic remanent magnetization (ARM) can be used as the normalization parameter of the natural remanent magnetization (NRM). Our relative paleointensity data of upper 80 m of Jing'erwa core provide a continuous record of the intensity variation during the last 0.8 Ma, which correlates well with the results from marine sediments cores in the Pacific Ocean. This means that the sediments records are reliable for relative paleointensity of Earth's magnetic field, and suggests that these sediments have recorded the real changes of geomagnetic field, which would provide a new method for regional stratigraphic correlation.
机译：我们对泥河湾盆地静二洼岩心上部80 m进行了详细的岩石磁学研究。结果表明，静儿洼岩心的沉积物适合进行古古强度研究，而滞回剩磁（ARM）可以作为自然剩磁的归一化参数。我们的静尔瓦岩心上部80 m的相对古强度数据提供了连续0.8 Ma期间强度变化的连续记录，这与太平洋海洋沉积物岩心的结果很好相关。这意味着沉积物记录对于地球磁场的相对古强度是可靠的，并且表明这些沉积物已经记录了地磁场的真实变化，这将为区域地层对比提供一种新的方法。

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