摘要
黄骅坳陷在中生代经历了印支运动和燕山运动Ⅱ幕的褶皱－冲断作用，以及晚中生代至新生代的伸展作用．这种由挤压构造体制到伸展构造体制的构造反转，属于负构造反转，它具有先存冲断层的重新活动，且沿断层面向下滑动，形成犁式正断层的特征．由于构造负反转作用，造成了前第三系分布和构造格局相对复杂的面貌，负反转构造在现今地震剖面上难以发现．从构造负反转作用与油气关系看，应重视隆起部位（多为二级构造单元）的石炭—二叠系煤成气和煤层气的勘探，以及断陷深部层系的天然气勘探．
Huanghua Depression underwent folded_thrusting during Indosinian and Yanshanian Ⅱ cycle, extending during Late Mesozoic and Cenozoic. This tectonic inversion from compressional structures to extensional structures belongs to negative tectonic inversion, characterized by reactivity of pre_existing thrusts, downsliding along the pre_existing faults surfaces and forming listric normal faults. Negative tectonic inversion has caused complex situations of structural patterns and strata distribution. So, it is relatively difficult to find inversional structures. Considering the relationship between tectonic inversion and oil/gas, we should emphasize the exploration of Carboniferous-Permian coal_related gas and coalbed methane in uplifts, and natural gas in deep strata of fault depressions.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1998年第3期289-293,共5页
Earth Science-Journal of China University of Geosciences
基金
冀东油田九五科技攻关项目
关键词
中新生代
构造负反转
黄骅坳陷
油气地质
Meso-Cenozoic, inversional structure, negative tectonic inversion, Huanghua Depression.
