coal
When a rock is produced from a layer of plants, it is called coal. Coal forms from the remains of plants that have been compacted, heated, and subjected to pressure over millions of years.
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The rock is called sedimentary rock. The process of turning dead plants into coal through pressure and heat is known as coalification.
If the layer is of dead plants, it is a compressed layer known as a coal seam.
dike.
A sheet-like body that cuts across rock layers and is produced when magma is injected into a fracture is called a dike. Dikes are vertical or near-vertical geological formations that form when molten rock intrudes into existing rock layers and solidifies. This process often leads to the formation of igneous rock formations.
The layers of rock form a dome called a laccolith
A biochemical rock formed from layers of organic materials is called coal. Coal forms from the remains of plants that have been subjected to heat and pressure over millions of years, eventually turning into a solid carbon-rich rock. It is a valuable source of energy used for generating electricity and heat in many parts of the world.
The type of rock that forms where the remains of plants and animals are deposited in thick layers are called organic sedimentary rock.
The layers of any sedimentary rock are called strata.
When rock layers form parallel to each other, it is called stratification. This process occurs when sediments settle and accumulate in horizontal layers over time, resulting in distinct bands or layers of rock.
I think the answer you are looking for is bedrock. Hope I helped.. If I did, your welcome :)