Liu Jiabo^1,2, Norbert R Nowaczyk³, Monika C Korte⁴, Sanja Panovska⁴, Ute Frank³ and Helge W Arz⁵, (1)Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Germany, Section 4.3 – Paleoclimate and Landscape evolution, 14473 Potsdam, Potsdam, Germany, (2)Now at Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Section 4.3 – Paleoclimate and Landscape evolution, Potsdam, Germany, (4)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Section 2.3 – Geomagnetism, Potsdam, Germany, (5)Leibniz Institute for Baltic Sea Research, Rostock, Germany