CAJ | 학술논문

使用大地电磁（ MT）测深技术，结合测区的地质和物性特征，对中上扬子地区的断裂、褶皱、地层展布进行了地面、地下对比分析，证实了该区构造划分与地面构造分布基本一致；综合地层分布、电阻率异常显示和地质情况，解释了局部构造发育情况。根据局部构造的发育位置和层序，结合油气地质分析，初步认为，剖面西部和中部局部构造电性特征清楚，构造落实程度较高；寒武系、震旦系埋深在4 km以下，上部志留系—上奥陶统低阻层分布稳定，盖层发育广泛，断层封堵性较好，有利于寒武系、震旦系油气的保存。
사용대지전자（ MT）측심기술，결합측구적지질화물성특정，대중상양자지구적단렬、습추、지층전포진행료지면、지하대비분석，증실료해구구조화분여지면구조분포기본일치；종합지층분포、전조솔이상현시화지질정황，해석료국부구조발육정황。근거국부구조적발육위치화층서，결합유기지질분석，초보인위，부면서부화중부국부구조전성특정청초，구조락실정도교고；한무계、진단계매심재4 km이하，상부지류계—상오도통저조층분포은정，개층발육엄범，단층봉도성교호，유리우한무계、진단계유기적보존。
Using magnetotelluric ( MT) sounding technology, combined with the geological and physical characteristics of the survey area, the authors made a ground?underground comparative analysis of the fractures, folds and strata in middle and upper Yangtze re?gion. The results show that the divisions of the structures are basically consistent with the distribution of surface structures. Integrated stratigraphic distribution, resistivity anomalies and geological conditions were used to explain the characteristics of the local structure. According to the local structural features and stratigraphic sequence, combined with the oil and gas geological analysis, the authors pre?liminarily hold that the electric characteristics of local structure in the western and central parts of the profile is clear, and that Cambri?an and Sinian strata are buried under 4 000 m, the Silurian and Ordovician low resistivity beds are stably distributed, the capping beds are extensively developed, and the faults have relatively plugging properties, which are favorable for the preservation of Cambrian and Sinian oil and gas.