Sedimentary Rocks

        Sedimentary rocks are a type of rocks that are found when existing rocks undergo exogenic processes, such as weathering and erosion, and are transported, deposited ,and cemented together under or near the surface of the earth . Clastic or detrital rocks are sedimentary rocks that are composed of fragments of rocks and minerals that have been eroded, transported, deposited and cemented together. Chemical rocks are sedimentary rocks composed of minerals that have been precipitated from water by an inorganic or biochemical process.

Sedimentary Rhythm of Xiangyang Fm

Coarse-grained Quartz Greywacke

Pisolitic limestone

Argillaceous Siltstone

Silexite

Oil shale

Oolitic Ironstone