There are observation evidences for the E-W trend suture as following: (1) an ophiolitic melange belt resulted from subducted and overthrusted residual oceanic crust;

这条东西延伸的缝合带的证据是：1。残留洋壳经消减、冲断形成的蛇绿混杂带；

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These two parts were partitioned by antique basement and Cenozoic oceanic crust. The suture belt of the Ancient South China Sea exists in an area from north Kalimantan to north Palawan.

南北两地中生界被古老基底和新生代洋壳隔开，加里曼丹岛北侧-北巴拉望一线为古南海消亡的缝合带。

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