* Coal: Formed from the accumulation and compaction of plant matter, primarily in swampy environments.
* Oil Shale: Composed of organic-rich mudstone and shale, containing a significant amount of kerogen, a precursor to oil.
* Limestone: Primarily composed of the calcium carbonate shells and skeletons of marine organisms.
* Chalk: A type of limestone made up of the microscopic shells of marine algae called coccolithophores.
* Fossiliferous Limestone: Limestone containing visible fossils of marine organisms.
* Diatomite: Formed from the accumulation of fossilized diatoms, a type of algae with silica shells.
* Coquina: A type of limestone made up of broken shells and fragments.
These rocks provide valuable insights into past environments and the history of life on Earth. They also serve as important sources of energy, building materials, and other resources.
