Jiyang depression is a field where nonhydrocarbon is rich . these resources have close relation with the activities of the volcanos . at the same time , the activities of volcanos have deep contact with the activities of the faults . the growth of the faults in jiyang depression is great . by the research of the index number of the faults growth and the other researches , nw direction faults are the most ones in mesozoic , nw and ne and approximately ew directions all exist in cenozoic . the above reflects the whole geotectonic background that sinistral shearing stress field exists in mesozoic , but dextral shearing stress field exists in cenozoic 这些气藏与火山活动有密切的成生关系，同时火山活动与断裂活动也有密切的关系。济阳坳陷内断裂活动极为发育，通过断层生长指数等的分析，推断中生代断裂以北西向为主，新生代则兼有北西向北东向和近东西向的断裂，上述断裂发育特征反映了该区的大地构造背景，在中生代是左旋的剪切应力场，在新生代则是右旋的剪切应力场。
The large - scale composite ductile shear zone around laerdun daban is analyzed into three stages including horizontal dispatch , uplift by compression and magrnatic intrusion , and dextral strike - slip ductile shearing , respectively of late early paleozoic to early late paleozoic , late devonian , and permian - triassic ages 摘要拉尔敦达坂一带发育的大型复合式韧性剪切带，经解析分为水平拆离、挤压和岩浆侵入隆升、左行走滑韧性剪切三个不同阶段，变形时限分别限定在早古生代晚期至晚古生代早期、晚泥盆世和二叠三叠纪。
The study on the structural feature opened out by the non - seismic ( mt ) profile of xiaonangou in qinglong mountain on the west edge of ordos basin and the seismic profile across helan mountain shows that a series of thrust blocks - qinglong - luoshan - nioushou - helan mountain , were the thin - skin structure formed by the westward compression of ordos block and the dextral shear of alashan block 通过对盆地西缘青龙山南端小南沟的非地震mt剖面以及横穿贺兰山的地震剖面揭示的构造形态研究认为，盆地西缘一系列推覆体青龙山?罗山?牛首山以至贺兰山是由于鄂尔多斯地块向西推挤同时与阿拉善地块的右行运动所产生的“薄皮构造” 。
Based on the analyses of structural features , volcanic activities , sequence construction and so on , it is believed that liaohe basin has experienced the period of dextral transtensional stress field in late jurassic - early cretaceous , middle and late paleocene , late eocene , miocene , and also the period of sinistral compresso - shear stress field in late cretaceous , early paleocene , early and middle eocene , oligocene , pliocene 对构造现象、火山活动、层序充填型式等多种实际资料的分析表明：辽河盆地经历了侏罗纪末白垩纪早期、古新世中后期、始新世中后期、中新世等右旋张扭应力场作用阶段，以及白垩纪晚期、古新世初期、始新世早中期、渐新世、上新世以来等左旋压旋应力场作用阶段。
