晋中南断陷盆地中新生代构造演化及临汾盆地现今构造应力场研究

Tectonic Evolution of Meso-Cenozoic Fault Basins of Adjacent Area in Middle Southern of Shanxi Province and the Present Tectonic Stress Field in Linfen Basin

晋中南断陷盆地区包括晋中盆地、临汾盆地和运城盆地.尤其是临汾盆地强震频繁,引起许多学者关注,且获得大量研究成果。对该地区中新生代构造演化,一般认为,控制盆地边界的正断层是由中生代的逆断裂演化而来,甚至有人认为大同盆地和临汾盆地形成之前是一褶皱隆起带.但是,关于该褶皱和断裂的关系及其形成演化尚无详细论述。而有关这些问题的深入研究。

Basing on many data about Meso-Cenozoic streutures in Shanxi Fault Blocks,this paper analyses and researches on the origin and evolutionary process of folds and fractures in middle southern of Shanxi Province;discovers Taiyucshan anticline in middle of Shanxi Province,Huoshan-Matoushan anticline in southern of Shanxi Province and their accom-panied reverse thrust,longitudinal and transverse tensile fractures;shows the reason why Cenozoic rault basin depression running-NEE is deeper and NNE of that is shallow;re-veals the present tectonic stress field in Linfen basin.