limestone beds

Limestone beds are layers of sedimentary rock primarily composed of calcium carbonate, often formed from the accumulation of shells, coral, and marine organisms' remains in ocean environments. These beds develop over time through the gradual deposition of sediments, creating distinct, stratified layers. Limestone is commonly found in regions once covered by ancient seas and can be involved in the formation of caves and karst landscapes through erosion. Its appearance varies from fine-grained to rough and can contain fossils, making it important both geologically and commercially, especially in cement and lime production.