Shell carbonate

Shell carbonate refers to the mineral-rich deposits found in the shells of marine organisms, such as mollusks and corals. These shells primarily consist of calcium carbonate, a compound formed from calcium, carbon, and oxygen. The shells serve as protective structures for the organisms, but when they die, their shells can accumulate on the ocean floor. Over time, these deposits contribute to the formation of sedimentary rocks, such as limestone. Shell carbonates play a significant role in the carbon cycle, influencing carbon storage and atmospheric CO2 levels, thus impacting climate change.