A 62 kyr geomagnetic palaeointensity record from the Taymyr Peninsula, Russian Arctic

Abstract. This work presents unprecedented, high-resolution palaeomagnetic data from the sedimentary record of Lake Levinson-Lessing, deepest lake in northern central Siberia. Palaeomagnetic analyses were carried out on 730 discrete samples upper 38 m 46 long core Co1401, which was recovered part lake. Alternating field demagnetization experiments to obtain characteristic remanent demagnetization. The relative palaeointensity is determined using magnetic susceptibility, anhysteretic magnetization, and isothermal magnetization for normalization partial natural magnetization. chronology Co1401 derives correlation 642 with GLOPIS-75 reference curve, accelerated mass spectrometer radiocarbon ages, optically stimulated luminescence dating. study focuses > 10 ka but also preliminary results younger core. includes geomagnetic excursions Laschamps Mono resolves sufficient features establish a that continuously covers last ∼ 62 kyr. reveal continuous sedimentation at high rates between 45 95 cm kyr−1. low variability compared datasets records lower may be due smoothing effect associated lock-in depths. Because cored without segment overlap horizontal component can only used caution. Nevertheless, exceptional as it palaeosecular variations Arctic tangent cylinder going back ka.