Abstract:

The sedimentary characteristics of Feixian Guan Formation in Lower Trassic System, Beipei area，have been discussed in this paper. It is believed that the carbonate deposit-dominated barrier system is similar to, but different from the terrigenous barrier system. Information in the paper fully shows the distinguishing features of geomorphologic units, sediment assemblages, hydro-dynamic conditions of the carbonate barrier. The purpose of this paper is to provide an example for recognition and division of the ancient carbonate barrier.