The Indochina block only played a transitional boundary role.
印支地块则仅起转换边界作用；
The Indochina block and South China block have collided and sutured together in early Mesozoic, and formed the northern mar - gin of proto-South China Sea Basin.
印支地块和华南地块是在中生代早期碰撞缝合在一起的，构成了古南海北部陆缘。
The third phase, during the middle and the later Miocene, with the Indochina block intruding into Eurasia plate gradually, Indochina peninsula's extrusion slowed down further.
第三阶段，中、晚中新世随着印度地块逐渐楔入欧亚板块内部，印支半岛的挤出运动进一步减弱。
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