【摘要】 以地震剖面的详细分析解释为基础,利用断层活动速率参数定量分析了临清拗陷东部主要断层的活动性,结合中、新生代各主要构造层的横向展布特征探讨了断层的发育演化特征及断层发育对地层沉积的控制作用。结果表明,断层是临清拗陷东部中、新生代最重要的构造变动型式,依据不同地质时期断层的活动性,将断层发育演化过程划分为J3+K1、K2、E、N+Q四个主要的期次,不同期次断层发育演化特征存在着差异性,古近纪是研究区现今断层格局的主要发展及定型期;临清拗陷东部地区晚侏罗世—早白垩世整体为一NE向展布的大型断陷湖盆,现今残留地层展布特征体现了晚侏罗世—早白垩世张性断层对其沉积、晚白垩世区域性抬升和逆冲断层活动以及新生代张性断层对其剥蚀的叠加效应,古近纪断陷湖盆为NE和近EW向展布,地层厚度相对较薄,其展布特征体现了新生代张性断层对其沉积的控制作用。更多还原

【Abstract】 Based on the detailed interpretation of the seismic profiles,the activities of the main faults in the east area of Linqing depression are analyzed by using the fault activity velocity,furthermore,the development characteristics of the faults are discussed.Based on the research above-mentioned,combined with the lateral distribution characteristics of the main structural layers of Mesozoic and Cenozoic,the fault controlling on the deposition of the strata is analyzed.The results show that the faults are the most important structure styles in Mesozoic and Cenozoic in the area of Linqing depression.According to the fault activities in each period,the development of the faults can be divided into four periods,late Jurassic to early Cretaceous,late Cretaceous,Paleogene and Neogene to Quarternary.The development characteristics of the faults are different in different periods,and the present pattern finalized in Paleogene.From late Jurassic to early Cretaceous,the east area of Linqing Sag was a large NE rift lacustrine basin The characteristic of the remnant strata is the superimposed outcome of the deposition controlled by the extension faults from late Jurassic to early Cretaceous,the denudation was controlled by the regional rise,the thrust faulting in late Cretaceous and the extension faults in Cenozoic.The NE and EW distribution and the thinner thickness of the Paleogene strata are the outcome of the deposition controlled by the extension faults in Cenozoic.更多还原