silt coal

См. также в других словарях:

• Coal bed methane extraction — (CBM extraction) is a method for extracting methane from a coal deposit. Contents 1 Basic principles 2 Areas with coal bed methane extraction 3 Measuring the gas content of coal …   Wikipedia

• Coal grade —   This classification refers to coal quality and use.   • Briquettes are made from compressed coal dust, with or without a binding agent such as asphalt.   • Cleaned coal or prepared coal has been processed to reduce the amount of impurities… …   Energy terms

• Coal River (West Virginia) — For other uses, see Coal River (disambiguation). The Coal River at Upper Falls …   Wikipedia

• Coal forest — Etching depicting some of the most significant plants of the Carboniferous. Coal forests were the vast swathes of wetlands that extended over much of the tropical land areas during late Carboniferous (Pennsylvanian) and Permian times.[1 …   Wikipedia

• Silt —   Waste from Pennsylvania anthracite preparation plants, consisting of coarse rock fragments containing as much as 30 percent small sized coal; sometimes defined as including very fine coal particles called silt. Its heat value ranges from 8 to… …   Energy terms

• Coal Ridge High School — Coordinates: 39°33′0.37″N 107°36′32.84″W / 39.5501028°N 107.6091222°W / 39.5501028; 107.6091222 C …   Wikipedia

• Silt, culm, refuse bank, or slurry dam mining —   A mining operation producing coal from these sources of coal.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

• Problems in coal mining — Coal mining cannot be done everywhere with coal, due to certain restrictions.ProblemsDip of strataDue to current machinery, a permament feedback is required.FaultingIf a fault hits a rock with a coal seam inside, the coal seam moves. Machinery… …   Wikipedia

• The Coal Question — Infobox Book | name = The Coal Question; An Inquiry Concerning the Progress of the Nation, and the Probable Exhaustion of Our Coal Mines image caption = Graph included in the treatise author = William Stanley Jevons translator = illustrator =… …   Wikipedia

• Chi-lung — (jēʹlo͝ongʹ, chēʹ ) or Kee·lung (kēʹ ) A city of northern Taiwan on the East China Sea. It is a port for the capital city of Taipei. Population: 349,686. * * * ▪ Taiwan conventional  Keelung        shih (municipality), northern Taiwan, and the… …   Universalium

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium