CARBONATE STORM DEPOSITS IN THE WUMISHAN FORMATION IN THE JIXIAN AREA

At present,the age of storm deposits reported in China may be traced back to late proterozoic. This paper, however, presents evidence of the presence of storm deposits in the middle Proterozoic Wumishan Formation in the Jixian area.The storm deposits are mainly developed in the proximal shallow-sea basin facies and gentle slope zone below the normal wave base. A distinctive feature of the storm deposits of this formation is that they have a close genetic relation with gravity flow and turbidity current activity. The srructure of the section is mostly of incomplete type and composite type.