This study specifically targets on two sections of Lower Cretaceous rocks located on the Chekurovka Cape (key section) and Chucha Cape. We documented the fluvial section in terms of sequences, consisted of low-accommodation and high-accommodation system tracts, where low-accommodation system tract is characterized by amalgamated channel belts and high-accommodation system tract is characterized by channel belts dispersed within fine-grained floodplain deposits. We identified four sequences in the Chekurovka Cape the Lower Cretaceous deposits. Each of the four sequences identified within the Chekurovka section was also identified within the Chucha Cape section. Although thickness of the individual sequences varies, all sequences with high and lower accommodation systems tracts are recognized and correlated between the two sections. This implies that the four underlying sequence boundaries can be regionally correlated within this foreland basin and likely extend beyond the boundaries or our study area as well. Variability in the available fluvial accommodation space probably was connected with variation of basin’s subsidence rate.


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