The Neoproterozoic storm deposits in the Zhaowei region, Xuzhou, Jiangsu: Depositional sequences and their bathymetric controls

The Neoproterozoic storm deposits are well developed in the Zhaowei region, Xuzhou, Jiangsu, and may be grouped into seven depositional sequences in different sedimentary environments. These storm deposits are characterized by scour surface, lag deposits, hummocky cross-bedding and liquefied crinkled bedding. The abovementioned seven depositional sequences of the storm deposits may also be corresponded with the continuous deposits in the shallow shelf margin-platform foreslope-platform supratidal environments, and display a close correlation with water depths. Finally a genetic model is proposed for the storm deposits in the Jiayuan Formation.