Why coal is sedimentary rock?
Coal is a combustible sedimentary rock formed from ancient vegetation which has been consolidated between other rock strata and transformed by the combined effects of microbial action, pressure and heat over a considerable time period. This process is commonly called 'coalification'.
Is coal igneous metamorphic or sedimentary?
Being composed of carbon, coal forms a carbonaceous deposit. Having been transported and accumulated in a single deposit it is sedimentary. Having undergone metamorphosis and petrification it is a rock. Consequently it is reasonable to classify coal as a carbonaceous sedimentary rock.
Which coal is metamorphic rock?
| Summary Chart of Common Metamorphic Rocks | ||
|---|---|---|
| Original Rocks | Metamorphic Equivalent | Metamorphism |
| granite | gneiss | regional |
| basalt | schist | regional |
| bituminous coal | anthracite coal | regional |
Is coal igneous rock?
Coal is a sedimentary rock. Coal is altered through biological and burial-thermal processes into different ranks.
Is coal a clastic sedimentary rock?
Coal is a non-clastic rock. Limestone is a clastic rock. Limestone formed from the remains of animals.
Is coal a igneous rock?
Coal is a sedimentary rock. Coal is altered through biological and burial-thermal processes into different ranks.
Is coal a sedimentary rock?
Coal is a black sedimentary rock that can be burned for fuel and used to generate electricity. Coal is the leading source of energy in the United States.
Is coal a chemical sedimentary rock?
Coal is an organic sedimentary rock that forms mainly from plant debris.
What is coal rock made of?
Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.
Is coal a chemical or clastic?
clastic rock Coal is a clastic rock.