Kerry Sieh¹、*Jason S Herrin¹、Dayana Angel Schonwalder¹、Vanpheng Sihavong²、Brian Jicha³、Brad Singer³、Weerachat Wewegwin⁴、Paramesh Banerjee¹、Tawachai Chualaowanich⁴、Punya Charusiri⁵ (1.Earth Observatory of Singapore, Nanyang Technological University, Singapore、2.Department of Geology and Mines, Ministry of Energy and Mines, Vientiane, Lao People’s Democratic Republic、3.Department of Geoscience, University of Wisconsin–Madison, Madison, Wisconsin, USA、4.Department of Mineral Resources, Ministry of Natural Resources and Environment, Ratchatewi, Bangkok, Thailand、5.Department of Geology, Chulalongkorn University, Khet Pathumwan, Bangkok, Thailand)