1. Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore
2. Asian School of the Environment, Nanyang Technological University, Singapore 639798, Singapore
3. Department of Geosciences, National Taiwan University, Taipei 10617, Taiwan
4. Institute of Earth Sciences, Academia Sinica, Taipei 11529, Taiwan
5. Facility for Analysis Characterisation Testing Simulation, Nanyang Technological University, Singapore 639798, Singapore
6. Escuela de Geología, Universidad Industrial de Santander, Bucaramanga, Santander CP 680002, Colombia