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长江三角洲地区是我国的经济发达区，能源短缺是制约本区经济发展的瓶颈。而苏北—南黄海地区是下扬子及周缘海相中古生界保存厚度较大的区域，长江三角洲地区的能源就近供给只能依赖于海相油气的突破。丽苏北南黄海的海相中古生界经历了印支期以来的多期变形改造，其各区块的油气前景与变形强度及变形类型密切相关。变形强度总体趋势由西而东，由陆向海减弱。依据不同的变形特点，可划分出8种不同的变形类型。以此为基础，对苏北—南黄海的油气前景做出了初步对比评价，认为南黄海中央隆起较陆上及其它海域具有较好的勘探前景。

Classification of Deformation Types of the Marine Mesozoic-Paleozoic Erathem in North Jiangsu-South Yellow Sea

??Yangtze detla is the developed region in China.But energy source shortage restricts further economic development for a long time.The problem can be solved by nearby providing energy source.The marine Mesozoic-Paleozoic Erathem,with a massive preservation thickness in Lower Yangtze and its surroundings,in North Jiangsu-South Yellow Sea had undergone multi period deformations since Indochina Period.The hydrocarbon potential of each block is related to the deformation strength and type.The deformation strength is declining eastward and seaward.In the light of different deformation characteristics,8 deformational types are divided.Furthermore,a preliminary evaluation on hydrocarbon potential in North Jiangsu-South Yellow Sea is carried out,and it is recognized that the central uplift in North Jiangsu-South Yellow sea has better exploration prospects than others.