The palaeokarst abrupt slope, the palaeokarst monadnock and its surrounding were the best preserved region of karst and corrosion holes.

• 并得出古地貌与油气富集关系：其中古岩溶残丘及边缘地区和古岩溶陡坡，是岩溶和溶蚀孔洞保存最有利的区域；