Seismic Facies of Paleogene in Liaodong Bay，Bohai Basin

Key words: 
• seismic sequence /
• seismic facies /
• Liaodong Bay /
• Paleogene

Abstract:  Seismic facies of Paleogene in LiaoDong Bay are divided and named mainly based on the reliable internal reflection texture and external shape of the seismic sequence unit. Amplitude, continuity and other seismic parameters are also used in the description of seismic sequence units. In the study area, six seismic sequences are divided and more than seven seismic facies are identified, including parallelsubparallel matshaped, foreset, wedge shaped, filling, lenticular, moundy and hummocky seismic facies, which show differentiation in spatial distribution and hereditability in vertical evolution. The sedimentary facies in the lake environment, including semideepdeep lake subfacies, shallow lake and shore subfacies, fandelta, subaqueous alluvial fan, delta, turbidite, etc. The favorable areas are identified.