川东北元坝地区长兴组—飞仙关组地层类型研究

Study on formation types of Changxin formation Feixianguan Formation in Guangyuan area,Northeastern Sichuan Basin

根据川东北元坝地区长兴组—飞仙关组岩性、古生物、测井曲线特征、地震响应标志等相关资料内容的综合分析,得出结论:长兴组划分为即碳酸盐台地型、台地边缘礁滩型、台地边缘斜坡型及陆棚型。飞仙关组分为台地前缘斜坡型、开阔台地型及陆棚型三种类型。

According to the comprehensive analysis of the related data of lithology, paleontology, logging curves and seismic response signs of the Changxin formation Feixianguan Formation in Guangyuan area of Northeast Sichuan, the conclusion is drawn that the Changxin formation is divided into carbonate platform type, platform edge reef beach type, platform edge oblique slope type and shelf type. Feixianguan formation is divided into three types： platform type, platform front slope type and continental shelf type.