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机构地区:[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新123000 [2]辽宁工程技术大学职业技术学院,辽宁阜新123000
出 处:《辽宁工程技术大学学报(自然科学版)》2005年第6期821-824,共4页Journal of Liaoning Technical University (Natural Science)
摘 要:为了探讨京西木城涧侏罗纪井田地质构造及演化特征,采用钻孔与矿井资料相结合的方法,揭示了京西木城涧侏罗纪井田轴迹方位为NE10°±、NE22°±、NE43°±、NE65°±和NW34°±5组褶皱及相关断层的发育特征:阐述了地质构造对煤层发育、赋存状况的控制作用;指出该区地质构造的形成、演化经历了中生代的3个成盆阶段(早侏罗世-中侏罗世早期火山-沉积盆地的发育阶段、中侏罗世晚期火山-沉积盆地的重现阶段、白垩纪火山-沉积盆地的再现阶段)、3次褶皱幕(中侏罗世早期末褶皱幕、晚侏罗世末褶皱幕、白垩纪末褶皱幕)以及新生代的2次构造挤压运动,自早至晚形成的各期压性构造面走向呈现逆时针偏转之规律。To discuss the feature of geological structures and evolution of Jurassic well fields in Muchengjian, Xishan, Beijing through drilling holes and with well material, the development feature of 5 groups of folds is revealed, whose axial trace directions are N10°±E, N22°±E, N43°±E, N65°±E and N20°±W, and correlated faults of this area and expand the tectonic control of the development and occurrence acting on the coal seams. At last, the article points out the forming and evolving of those structures has undergone 3 basin-forming stages in Mesozoic Era(the developing stage of volcanic-sedimentary basin from early Jurassic to early Middle Jurassic, the recurrent stage of volcanic-sedimentary basin in late Middle Jurassic, and the resurrected stage of volcanic-sedimentary basin in Cretaceous), 3 fold episodes(the fold episode in the end of late Middle Jurassic, the fold episode in the end of Late Jurassic, and the fold episode in Cretaceous), and 2 tectonic compression movement in Cenozoic Era. From early to late the directions of compressive structures planes of each stage indicates an anticlockwise rotation.
分 类 号:TE122[石油与天然气工程—油气勘探]
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