Marine carbonate sediments

Marine carbonate sediments are deposits found on the ocean floor, primarily composed of calcium carbonate, which comes from the shells and skeletons of marine organisms like corals, foraminifera, and mollusks. These sediments form in warm, shallow waters where sunlight penetrates, promoting the growth of these organisms. Over time, their remains accumulate, creating layers of limestone and other carbonate rocks. These sediments play a crucial role in the carbon cycle and serve as indicators of past ocean conditions, helping scientists understand changes in climate and sea levels throughout Earth's history.