利用二维活断层探测资料构建焦作地区浅层三维构造模型

Using the 2D Active Fault Seismic Data to Construct the Shallow 3D Structural Model of Jiaozuo Area

运用专业地震解释及构造建模软件,综合利用焦作地区地震数据、钻孔数据、地质信息对活断层二维浅层地震剖面进行层位与断层解释,同时对断层平面组合与空间展布规律进行研究,实现地质资料与地震数据的有机结合,构建近地表Q 3地层底界面、Q地层底界面、N地层底界面分布模型和第四纪断层模型。以第四纪断层模型为基本骨架,以近地表地层分布为主要分层,模拟Q-Q 3地质体、N-Q地质体的构造形态和断层发育情况,系统反映近地表N地层底界面至Q 3地层底界面的空间结构特征。

In this study,professional seismic interpretation and structural modeling software are used to comprehensively interpret stratum and fault in 2D shallow seismic active fault profiles.We utilize seismic data,borehole data and geological information from the Jiaozuo area.At the same time,the plane combination and spatial distribution law of faults are studied to realize the organic combination of geological and seismic factors,then the distribution model of the bottom interface of Q 3 stratum,Q stratum,N stratum and the Quaternary fault model are constructed.On the basis of these models,the Quaternary fault model is used as the basic framework,and the near-surface stratum distribution model is used as the main stratification,then the structural morphology and fault development of the Q-Q 3 geological body and the N-Q geological body are simulated.These geological bodies reflect the spatial structure characteristics of the bottom interface of Neogene stratum to Q 3 stratum.