MESOZOIC SEQUENCE STRATIGRAPHIC FRAMEWORK FEATURES AND ITS GENETIC ANALYSIS OF SONGLIAO BASIN, NORTHEAST CHINA

Abstract

A hierarchy of sequence stratigraphic subdivisions is suggested for the Late Jurassic – Cretaceous deposits of the Songliao basin based on the results of seismic survey and also holes and outcrops. A megasequence, supersequence set, supersequences, sequences and parasequences are distinguished characterizing stages of the basin development and different-order cyclic recurrence. Regional and global factors are considered that govern the course of the basin evolution.