Types of Storm Deposit Sequence of Carbonates and Characteristics of Trace Fossils in Zhangxia Formation of 3rd Epoch of Carbonates in Longmen,Luoyang Region

There are very successive outcrops of Zhangxia Formation carbonates of the 3rd Epoch of Cambrian in Longmen,Luoyang of Henan Province,where a mass of storm deposits are well developed with ideal sections for the study of storm deposit in carbonates.This paper studies in detail six kinds of typical sedimentary structures in storm deposits and divides the storm deposit rock into five kinds of sequences so as to provide typical marks to rebuild its palaeoenvironment.According to the detailed observations and research on the trace fossils,the storm deposits are divided into three sequences with six trace fossils recognized.On the basis of above,the paper summarizes the distribution mode of trace fossils in storm deposits and analyses the change law of sedimentary environments.