Levinson-Lessing Lake in northern Central Siberia is a sedimentary archive characterized by continuous, widely constant sedimentation at high rates (0.7 m ka⁻¹ for >32 ka). This study provides the first evidence of the suitability of the lake′s sediments for paleomagnetic analyses using the 46-m-long core Co1401. Although the lowermost 8 m are disturbed, the upper 38 m of Co1401 provide the preconditions for an exceptional, high-resolution paleomagnetic record located within the tangent cylinder of the inner core. High-resolution analyses of magnetic susceptibility, anhysteretic remanent magnetization, isothermal remanent magnetization, and hysteresis parameters show largely uniform mineral magnetic properties. First-order reversal curves indicate magnetite particles in pseudo-single domain state are the main remanence carrier, supplemented by single-domain particles, originating likely from magnetotactic bacteria. Above 6.7 m, the bulk magnetic mineralogy is slightly harder than below and initial greigite formation occurs. However, the main remanence carriers are still of detrital origin.

中文翻译：

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西伯利亚莱文森-莱辛湖高纬度沉积物的矿物磁特征

西伯利亚中部北部的Levinson-Lessing湖是一个沉积档案，其特征是在高速率（0.7 m ka ^-1大于32 ka）。这项研究为使用46米长的Co1401岩心对湖泊沉积物进行古磁分析的适用性提供了第一个证据。尽管最低的8 m受干扰，但Co1401的最高38 m为在内芯切线圆柱体内产生异常的高分辨率古磁记录提供了前提条件。磁化率，磁滞剩余磁化强度，等温剩余磁化强度和磁滞参数的高分辨率分析显示出基本一致的矿物磁性能。一阶反转曲线表明，伪单畴态的磁铁矿颗粒是主要的剩磁载体，并补充了可能来自趋磁细菌的单畴颗粒。6.7 m以上，体磁矿物学的硬度略低于其下方，并发生了最初的钙铁矿形成。但是，主要的剩磁载体仍然是有害的。