Gina Muthia Sarkawi¹, Aron J Meltzner¹, Anandh Gopal², Joanne Lim², Andrew Paul Mitchell², Loraine Faye Sarmiento³, Jennifer Weil-Accardo², Kathrine Valdez Maxwell², Junki Komori⁴, Chuan-Chou Shen⁵, Shou-Yeh Gong⁶, Lin Ke², Yanbin LU², Xianfeng Wang⁷ and Noelynna Tuazon Ramos³, (1)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, (2)Earth Observatory of Singapore, Singapore, Singapore, (3)National Institute of Geological Sciences, University of the Philippines, Quezon City, Philippines, (4)The University of Tokyo, Tokyo, Japan, (5)National Taiwan University, High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Taipei, Taiwan, (6)National Museum of Natural Science, Geology, Taichung, Taiwan, (7)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore