准噶尔盆地东北缘构造特征、演化及与油气的关系  

Structural Feature and Evolution in Northeast Part of Junggar Basin

作　　者：姜耀俭[1] 杨丙中[1] 王岫岩[1] 李延平[1] 王先美[1] 

机构地区：[1]大庆石油学院,黑龙江安达151400

出　　处：《地质学报》2002年第4期462-468,共7页Acta Geologica Sinica

摘　　要：通过“建造”与“改造”特征的综合分析,划分了准噶尔盆地东北缘的构造带:早古生代(O_(1-2)陆缘逆冲带;晚古生代(D_1)混杂岩浆碰撞带;晚古生代(D_1)火山岩浆岛弧挤压带;晚古生代(D_(2-3))弧后盆地褶皱带;晚古生代(C_1—P_2)陆缘盆地褶皱带以及中生代前陆盆地平缓背斜带等6个构造带。自古生代以来,曾发生了两次拉张-碰撞(闭合)-推覆的演化过程,均表现为“北挤南拉”和“北老南新”的构造迁移,直到二叠纪末期,相当于晚海西期构造运动,全区发生大规模褶皱变形和挤压推覆。最后依据构造特征和演化分析结果,笔者建议在双井子陆缘盆地褶皱带等具备良好石油地质条件的有利油气区做进一步工作。By comprehensive analysis of the characteristics of formation and reconstruction, six tectonic belts in the northeast part of Junggar basin were divided: marginal obduction zone in Early Paleozoic(O1-2) ?melange mag-ma collision zone of late Paleozoic (D1) , volcanic arc-compression zone of Late Paleozoic (D1) , back-arc folded belt of Late Paleozoic (D2_3), marginal depression folded belt of Late Paleozoic (C1-P2) and foreland basin gentle anticline belt of Mesozioc era, etc. Since Paleozoic, twice evolution of extension-collision (closure)-nap-ping had happened, which show the distribution of north compression to south extension and the tectonic trans-port of north former to south later. Until the end of Permian period during Late Hercynian tectonic movement, the whole basin was folded and compressive napped. At last, according to the analysis results of structural fea-ture and evolution, it was suggested that more work should be done in favorable areas with well petroleum geo-logical conditions, such as Shuanjingzi marginal basin-anticline belt.

关 键 词：准噶尔盆地 拉张 碰撞 推覆 含油性 石油地质条件 

分 类 号：P544.4[天文地球—构造地质学]