泰一马半岛的古生代和早中生代岩石提供了东边存在着俯冲带和在西边存在着早古生代克拉通沉积物源地的证据。早期试图用板块构造学说解释这里的古地理时,认为东南亚在第三紀向北漂离冈瓦纳大陆並同亚洲大陆相碰撞。然而,那些事件发生的时间同事实不相符合。本文认为东南亚从冈瓦纳大陆的分离发生在中古生代,而碰撞发生在晚三迭世。这与Sengor提出的特提斯带西段的模式完全相符。 The Paleozoic and Early Mesozoic rocks of the Temma Peninsula provide evidence of the existence of subduction zones to the east and the presence of early Paleozoic craton deposits in the west. Early attempts to explain the paleogeography here using plate tectonics suggest that Southeast Asia drifted northward from the Gondwana in the Tertiary and collided with the Asian continent. However, those events do not coincide with the time of day. This paper argues that the separation of Southeast Asia from the Gondwanaland occurred in the Mesozoic Mesozoic, and the collision occurred in the late Triassic. This exactly matches the pattern proposed by Sengor in the Tethys zone.