Takaaki Watanabe¹, Miriam Pfeiffer¹, Saori Ito¹, Sri Yudawati Cahyarini², Dieter Garbe-Schönberg³ and Jens Zinke⁴, (1)Kiel University (CAU), Kiel, Germany, (2)National Research and Innovation Agency Republic of Indonesia (BRIN), Research Group of Paleoclimate & Paleoenvironment, Bandung, Indonesia, (3)CAU Kiel, Institute of Geosciences, Kiel, Germany, (4)University of Leicester, School of Geography Geology & The Environment, Leicester, United Kingdom