“…It is widely accepted that the two principal microcontinents, Sibumasu in the west and Indochina in the east, had formerly been a part of Gondwana. There is, however, still an ongoing debate on the overall plate tectonic model and the position of the Paleotethys suture (e.g., Ueno and Hisada, 2001;Hisada et al, 2004;Ferrari et al, 2008;Kamata et al, 2009;Metcalfe, 2009). The tectonic framework of Thailand is formed of four units (Fig.…”