such as coal
91sapropelic coal — ▪ coal classification hydrogen rich coal, including cannel coal and boghead coal (see torbanite), derived from sapropels (loose deposits of sedimentary rock rich in hydrocarbons) and characterized by a dull black, sometimes waxy lustre.… …
92History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… …
93Environmental effects of coal — There are a number of adverse environmental effects of coal mining and burning.These effects include: * release of carbon dioxide and methane, both of which are greenhouse gases causing climate change and global warming according to the IPCC.… …
94Underground coal gasification — (UCG) is an in situ gasification process carried out in non mined coal seams using injection and production wells drilled from the surface, which enables the coal to be converted into product gas. The process is flexible in operation and is… …
95European Coal and Steel Community — Danish: Det Europæiske Kul og Stålfællesskab Dutch …
96Clean coal — Historically[1] used to refer to technologies for reducing emissions of ash, sulfur, and heavy metals from coal combustion; the term is now commonly used to refer to carbon capture and storage (CCS) technology. Clean coal is an umbrella term used …
97Westmoreland County Coal Strike of 1910–1911 — The Westmoreland County Coal Strike of 1910–1911 was a strike by coal miners represented by the United Mine Workers of America. The strike is also known as the Slovak strike because about 70 percent of the miners were Slovakian immigrants.It… …
98Chuitna Coal Project — The Chuitna Coal Project is a proposed coal strip mine that, if granted state and federal permits, would be built about 45 miles (72 km) southwest of Anchorage, Alaska, in an area known as the Beluga Coal Fields near the Chuitna River and… …
99Dominion Steel and Coal Corporation — A Dominion Coal Company colliery in Reserve Mines, Nova Scotia, ca. 1900. This mine would become one of numerous assets of the Dominion Steel and Coal Corporation upon its founding in 1928 through corporate acquisitions. The Dominion Steel and… …
100bituminous coal — a mineral coal that contains volatile hydrocarbons and tarry matter and burns with a yellow, smoky flame; soft coal. [1875 80] * * * or soft coal Most abundant form of coal. It is dark brown to black and has a relatively high heat value. Widely… …
