论文部分内容阅读
针对狭长的双断式断陷盆地伊通盆地地层对比困难的问题,该文在区域构造分析、地层对比、沉积特征分析的基础上,研究了二级、三级层序界面的特征,建立了层序地层格架。通过研究认为:Tf界面虽然不具有区域性不整合面的特征,但是利用多种方法综合分析,最终认定Tf界面属于二级层序界面;通过对Tc和Td不整合面级次的比较,最终确定了永一段地层的归属问题。利用录井、测井、地震等资料,采用测井-地震相结合,总结了各层序地层的特征,对伊通盆地的地层进行了系统划分与对比,建立了各个标志层的划分与对比标准。
Aiming at the difficulty of stratigraphic contrast in the Yitong basin of the long double-fault rift basin, based on the analysis of regional tectonics, stratum contrast and sedimentary characteristics, the characteristics of the second- and third- Sequence stratigraphic framework. According to the research, although the Tf interface does not have the characteristics of regional unconformity, the Tf interface is finally determined to belong to the second-order sequence interface by comprehensive analysis of many methods. By comparing the Tc and Td unconformity surfaces, Determine the permanent ownership of a strata. Using the logging, logging and seismic data, the logging and seismic data are combined to summarize the characteristics of each sequence stratigraphy. The strata in Yitong Basin are systematically divided and compared, and the division and contrast of each marker layer are established standard.