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Ey1 has the unique desultory-weak or gap seismic reflection structure as its one of the most important characteristics.It is very important to clarify sedimentary characteristics and its origin for Yitong Graben and its sedimentary facies and tectonic evolution.On the basis of the research of core analyses,well logging data analyses,sedimentary facies analyses and seismic reflection structure analyses,the authors have concluded the sedimentary characteristics of Ey1,and have carried out Ey1 sedimentary environments and its origin.The result shows that Ey1 desultory-weak or gap seismic reflection may be a series of small scale secondary sediment fans superimposition.
Ey1 has the unique desultory-weak or gap seismic reflection structure as one of the most important characteristics. It is very important to clarify sedimentary characteristics and its origin for Yitong Graben and its sedimentary facies and tectonic evolution. On the basis of the research of core analyzes, well logging data analyzes, sedimentary facies analyzes and seismic reflection structure analyzes, the authors have concluded that the sedimentary characteristics of Ey1, and have carried out Ey1 sedimentary environments and its origin. The result shows that Ey1 desultory-weak or gap seismic reflection may be a series of small scale secondary sediment fans superimposition.