Coal

Coal

A metamorphic rock formed from stratified plant remains. It contains more than 50 percent carbon and burns readily.

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Industry/Domain: Earth science
Category: Geology
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coal

Mining; Coal mining

A dark solid substance that is made mainly of carbon and is burned as a fuel and it forms when large amounts of dead plants are buried under rocks.

coal

Fire safety; Prevention & protection

A solid fuel classified as lignite, subbituminous, bituminous, or anthracite as defined by ASTM D 388, Standard Classification of Coals by Rank.

coal

Chemistry; Organic chemistry

Coal is a combustible black or brownish-black sedimentary rock normally occurring in rock strata in layers or veins called coal beds or coal seams.

coal

Transportation; Railway

Coal replaced coke as the principle locomotive fuel in the UK upon the introduction of the brick arch and firehole deflector plate about 1860. It soon became obvious that some ...

coal

Geography; Physical geography

Coal is a readily combustible black or brownish-black sedimentary rock normally occurring in rock strata in layers or veins called coal beds. The harder forms, such as anthracite ...

coal

Earth science; Geology

A metamorphic rock formed from stratified plant remains. It contains more than 50 percent carbon and burns readily.

Toni voda

Travel; Travel sites; Geology

Toni voda is a subterranean river, located in a karst field, just a couple of kilometers from Galichnik.

drumlin

Earth science; Geology

Streamlined hill, largely of till, with blunt end pointing into direction from which ice moved. Occur in clusters called drumlin fields.

drylands

Earth science; Geology

A general term for semiarid and desert lands.

ductile

Earth science; Geology

Structural behavior in which a material deforms permanently without fracturing.

dust bowl

Earth science; Geology

An area subject to dust storms, especially south central United States.

dust storm

Earth science; Geology

Large volume of dust-sized particles lifted high into the atmosphere.

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