bituminous clay

См. также в других словарях:

• Bituminous slate — Slate Slate (sl[=a]t), n. [OE. slat, sclat, OF. esclat a shiver, splinter, F. [ e]clat, fr. OF. esclater to shiver, to chip, F. [ e]clater, fr. OHG. sleizen to tear, slit, split, fr. sl[=i]zan to slit, G. schleissen. See {Slit}, v. t., and cf.… …   The Collaborative International Dictionary of English

• Harry Clay Trexler — thumb|right| Colonel Harry Clay Trexler with His Irons in the Fire. From Newspaper Artists Club, As We See Em (1911).Henry Clay Trexler (April 17, 1854–November 17, 1933) was an American industrialist who built a business empire in Allentown,… …   Wikipedia

• Slate clay — Slate Slate (sl[=a]t), n. [OE. slat, sclat, OF. esclat a shiver, splinter, F. [ e]clat, fr. OF. esclater to shiver, to chip, F. [ e]clater, fr. OHG. sleizen to tear, slit, split, fr. sl[=i]zan to slit, G. schleissen. See {Slit}, v. t., and cf.… …   The Collaborative International Dictionary of English

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

• Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …   Wikipedia

• Fly ash — Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification Fly ash is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases. Ash which does not… …   Wikipedia

• 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

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

• Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …   Wikipedia

• West Virginia — This article is about the U.S. state of West Virginia. For other uses, see West Virginia (disambiguation). State of West Virginia …   Wikipedia