Study On Sedimentary Facies Of Low Cretaceous In Binbei, Songliao Basin

This paper mainly studied such aspects as the division of stratigraphy，sedimentary faciesstyles and space-time distribution disciplinary,and indicating the developmental stratum inBinbei zone by describing cores, identifying slices,and analyzing log data at the direction ofstratigraphy and sedimentology.Many types of sedimentary rocks can be found, for example, sandstone, conglomerate,mudstone and siltstone, and limestone locally developed. Based on the analysis of cores, thinsection, well logs, there are7kinds of sedimentary faces in Binbei in late Cretaceous periodcan be identified. They are alluvial fan, braided river, meandering river, delta face, littoral lakeface and deep lake face. These faces are distributed in space and time in some kind ofdisciplinarian. The alluvial fan common occurs at the boundary of the basin, and braided river,meandering river, delta and lake developed from basin boundary to the depositional center.