【摘要】 我国的东北地区为西伯利亚板块、华北板块及太平洋板块所挟持。自元古代古大陆裂解以来,经历了兴凯期、加里东期、华力西-印支期、燕山期及喜山期的造山作用,形成增生镶嵌状结合的地质块体。区内复合造山活动具有多期性、叠置性、结构复杂性、造山过程长期性和大陆增生性等特征。在晚古生代,沿华北板块北缘的华力西造山带范围内,沉积有呈三角形的石炭-二叠纪海相盆地。全区现今的构造组合,主要取决于晚侏罗世-早白垩世的构造-岩浆事件。区内含油盆地的成因是与地表-地壳-岩石圈"三层式"构造结构呈"立交桥式"的样式相关,同时据地震S波资料证实的太平洋俯冲与软流圈呈"蘑菇云状"的地幔隆升也有联系。由于地壳相互之间碰撞、挤压、底侵、拆沉、熔蚀、减薄、下沉等复杂的深部过程影响,形成了中新生代裂谷型陆相盆地与石炭-二叠纪海相盆地叠合而成,故命名为延变型复合盆地。针对控藏的地质条件,提出今后深部找藏的主攻方向和建议。更多还原

【Abstract】 The Northeast China is held by the Siberian plate,the North China Plate and the Pacific plate.Since ancient continental break-up during Proterozoic this area was exposed to Xingkai,Caledonian,Hercynian,Indosinian,Yanshanian and Himalyanian orogenic activities with accretive and mosaic terrains formed.Composite orogeny in this area is characterized by multi-phase,overriding,structural complexity,long-term process and continental accretion,etc.In late Paleozoic,there was a triangular C-P marine sedimentary basin within the Variscan orogenic belt at northern margion of North China Plate.The current structural frame of the area depends on the structure-magma events during the J3-K1 periods.Oil-bearing basin in the area is genetically related to the "surface-crust-lithosphere three-layered stereo bridge" structural pattern and also to Pacific subduction and asthenospheric mushroom uplift shown by S seismic wave.Due to the complex deep processes of plate collision,compression,underplating,delamination,resorption,thinning,subsidence of crust the composite basin was formed by overprint of Cenozoic continental rift basin on Carboniferous-Permian marine basin.In view of the geological conditions for reservoir-controlling,the main direction and recommendations for future deep reservoir prospecting is proposed.更多还原