1. Department of Geological Sciences Faculty of Science Chiang Mai University 239 Huay Kaew Rd, Tambon Su Thep Chiang Mai 50200 Thailand
2. Institute of Earth Sciences Academia Sinica Academia Rd, Nangang District Taipei 115 Taiwan
3. GEOMAR Helmholtz Centre for Ocean Research Kiel Wischhofstraße 1‐3 Kiel 24148 Germany
4. Jackson School of Geosciences University of Texas at Austin 23 San Jacinto Blvd Austin Texas 78712 USA