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Journal of Palaeogeography
Fig. 2 | Journal of Palaeogeography

Fig. 2

From: A near-shore clastic-carbonate mixing mode in a continental rift basin (early Oligocene, eastern Shijiutuo Uplift, Bohai Bay Basin, China): sedimentology, reservoir characteristics and exploration practice

Fig. 2

Lithostratigraphy and sequences of the STU. The lithological data and interpretations are based mainly on a combination of data from the wells in the eastern part of STU. The tectonic stages and sedimentary environment are modified after Liu et al. (2017). Compilation of base-level curve is according to analysis of lithofacies associations, black dotted line indicating fluctuation of base level of the third-order sequence cycle and red solid line indicating base-level rise and fall of the fourth-order cycle. D-1 = Member 1 of the Dongying Fm.; D-2 = Member 2 of the Dongying Fm.; D-3 = Member 3 of the Dongying Fm.; S-1 = Member 1 of the Shahejie Fm.; S-2 = Member 2 of the Shahejie Fm.; S-3 = Member 3 of the Shahejie Fm.; S-4 = Member 4 of the Shahejie Fm.

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