Analysis of high-resolution records of geomagnetic secular variations during the last 100 ka recovered from lacustrine and marine sediment profiles - reconstruction of the dynamics of the earth`s magnetic field

该项目的目的是详细分析海洋和湖泊沉积物中记录的过去100 ka地球磁场的长期变化，以获得地球磁场动力学的信息。根据湖泊沉积物的高沉积速率，预计时间分辨率为200至500年。数据分析将集中在本地、区域和全球范围内对来自世界各地的古长期变化（PSV）记录的特征进行比较。此外，还将对北西伯利亚拉马湖、死海、以色列和东西伯利亚贝加尔湖的沉积物岩心进行磁地层调查，以扩大适合计划调查的数据库。湖间对比不仅要以PSV记录为依据，而且要以相对古强度记录为依据。因此，上述亚洲地点的古地磁调查将通过确定岩石磁参数来完成。

The aim of the project is a detailed analysis of the secular variations of the earth's magnetic field during the last 100 ka as recorded in marine and lacustrine sediments, in order to obtain information of the dynamics of the Earth's magnetic field. Based on the high sedimentation rates in lake sediments a time resolution of 200 to 500 years is expected. The data analysis will be focussed on a local, regional and global comparison of features in palaeosecular variation (PSV) records from sites all over the world. Magnetostratigraphic investigations will additionally be performed on sediment cores from Lama Lake, North Siberia, Dead Sea, Israel and Lake Baikal, East Siberia in order to enlarge the data base suitable for the investigations planned. Inter-lake correlation will not only be based on the PSV records but also on the records of relative paleointensity. Therefore the paleomagnetic investigations from the Asian sites mentioned will be completed by the determination of rockmagnetic parameters.