中文摘要：

通过野外地质调查对鲁西隆起伸展构造特征进行研究,并根据相似理论建立相关试验模型,对鲁西隆起晚中生代以来的伸展构造的发育演化进行构造物理模拟。结果表明：鲁西隆起晚中生代以来的伸展裂陷作用主要经历了晚侏罗—早白垩世、新生代两个阶段,新生代又分为古近纪古新世—始新世初期（65-53 Ma）、早始新世—晚始新世（53-39 Ma）和始新世末期—渐新世（39-23.5 Ma）3个时期,各个时期与研究区伸展构造的主要发育时期相符;物理模拟试验证实泰山在新生代有两次快速抬升,分别为始新世（45 Ma）和渐新世（23 Ma）;伸展构造的形成归因于晚中生代和古近纪近南北向大规模的伸展作用,其深部背景主要为晚侏罗世以来太平洋板块俯冲方向及速度的改变、郯庐断裂带的走滑活动、新生代印欧板块的碰撞以及幔源岩浆活动。

英文摘要：

Extensional structure characteristics of west Shandong uplift were studied by the field geological survey.Based on that,according to the similarity theory,the experimental models were established and the formation of extensional faults and structural evolution since late Mesozoic were simulated in west Shandong uplift.The experimental results show that the extension mainly underwent two stages of late Jurassic-early Cretaceous and Cenozoic.And Cenozoic can be divided into three periods： Paleocene-early Eocene（65-53 Ma）,Eocene（53-39 Ma） and late Eocene-Oligocene（39-23.5 Ma）.The three periods equated with the main developing stages of extensional structure of the study area.Furthermore,the experimental results demonstrate that there are two rapid uplifting periods of Mountain Tai in Cenozoic,45 Ma and 23 Ma.The formation of extensional structure in west Shandong uplift attributed to two large-scale extensions of late Mesozoic and Paleogene in nearly SN direction.In deep geodynamics,the development of extensional structures in west Shandong uplift is controlled by the change of the direction and the velocity of the subduction between the Pacific Plate and the Eurasian Plate,strike-slip movement of the Tanlu fault,the Cenozoic collision of the Indian to the Eurasian plates and mantle-derived magmatism since late Mesozoic.