1·Negative reversal structure and the fault - block type buried hills are very common in Palaeozoic group in Tongwang area of Dongying Sag.
负反转构造和断块型古潜山普遍存在于东营凹陷通王地区古生界之中。
2·So the Late Palaeozoic group in ne China has tremendous potential for oil and gas resources, and should be an important new area for deep hydrocarbon exploration.
鉴于晚古生界潜在的烃源岩发育和叠合盆地特点，东北地区晚古生界具有巨大的油气资源潜力，应成为深部油气资源勘探的重要新层系。