Karst formations: Sedimentary carbonate rock (limestone, dolomite) that has been eroded by water. Limestone: Sedimentary rock composed of calcium carbonate. Microbial mat: Filamentous microbes ...

There's a new twist in a story concerning the fate of a troubled, Centre County water company.After a court motion was filed ...

Look at the diagram to get a better understanding of all the different processes of the rock cycle. These include weathering, erosion, transportation and sedimentation. Substances in river water ...