Study on Depositional Fabric and Environmental Characteristics of Dendrolites in the Cambrian Zhangxia Formation: An Example from the Houziyu Section of Ezhuang Town, Zibo, Shandong Province, Eastern China

The dendrolites composed of light gray massive micrite limestone occur at the top Cambrian Zhangxia Formation in Houziyu Section, Zibo, Shandong Province. Because it is very difficult to study genesis microbial rocks through “the function diagenesis filter,” this paper analyzes its genetic mechanism by characterizing sedimentary fabric and formation environment great significance carbonate deposited geological history oil exploration. section a marine deposit. macroscopic shrub-like centimeter scale can be seen on surface tree-shaped stone, with small biological burrows remnants calcareous mud components after filling. microstructure observation shows that main dark matrix, bright calcite cement, clastic particles, calcified cyanobacteria community. Detailed supplementary information diversity microorganisms has been made various types residual substances membrane area. It clear are product calcification biofilms or mats dominated cyanobacteria. With deepening kind research, bound raise research new level China provide help find gas resources strata origin China.