Both source rocks in Permian Lucaogou Formation in Tainan depression and Middle-Upper Triassic Xiaoquangou Formation in Tuokexun depression have experienced two hydrocarbon-generating processes.

• 台南凹陷二叠系芦草沟组烃源岩和托克逊凹陷中上三叠统小泉沟组烃源岩均具有两次油气生成过程。