山东北部滨海地区负反转断层及古生界负反转结构成因分析

山东北部滨海地区构造的发育及演化自动于终受控于北东－南西区域应力场的制约，同时也受北北东向郯庐大断裂的影响。负反转断层与古生界负反转结构的普遍存在，表明该区在双重应力场作用下，至少曾经发生过早期挤压，晚期拉张的应力场转换交替过程，因此形成了东部北北西向的局部构造带和西部北西向的“凹凸”的构造格局，现有资料证实，具有此种构造特征的领域既有利于油气的生成，亦有利于油气的富集，是油气勘探的理想目标。

Origin analyscs of both negative inversion faults and negative inversion structures in Palaeozoic Group in coastal region of north Shandong Province

Generation and evolution of geologic structures in coastal region of north Shan-dong Province were always controlled by the regional stress field in northeast-southwest trend, and influenced by Tan-Lu major fault stretching in northeast by north- The wide coexistence of negative inversion fault and negative inversion structure in Palaeozoic Group suggests that the early tectonic compression and late tectonic extension happened due to the coaction of the dual stress fields; therefore, there exist the east local structural zone trending in northwest by north, and the west structural style in northwest trend where depression and uplift occur alter-nately. It has been proved that such geologic structure is a favourable exploration area because it favoured hydrocarbon generation and late hydrocarbon aecumula-tion.