besides coal and oil (fossil fuels) what type of rocks store a great deal of carbon?
how about limestone?
Calcium carbonate has carbon in it.
Besides coal and oil, one type of rock that stores a significant amount of carbon is limestone. Limestone is a sedimentary rock primarily made of the mineral calcite, which is composed mainly of carbon. It forms from the accumulation and compaction of marine organisms such as corals, shells, and microscopic organisms called foraminifera that extract carbonate ions from seawater during their life cycle. Over millions of years, these accumulations of organic matter and calcium carbonate sink to the seafloor and form layers of limestone.
To find out which rocks store a great deal of carbon, one can consult scientific literature, databases, or research papers that focus on carbon storage in rocks. These sources will provide relevant information about carbonaceous rock formations and their potential for carbon storage. Additionally, geological surveys and studies conducted by organizations or institutions focused on mineral resources and natural environments may also provide valuable insights into carbon-rich rock formations.