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An anthracite pile in Trevorton, Pennsylvania. Anthracite derives from the Greek anthrakítēs (ἀνθρακίτης), literally "coal-like". [9] Other terms which refer to anthracite are black coal, hard coal, stone coal, [10] [11] dark coal, coffee coal, blind coal (in Scotland), [7] Kilkenny coal (in Ireland), [10] crow coal or craw coal, and black diamond.
The Anthracite Range was glaciated, and the most prominent glacial cirques are located on the north and east sides of the range. [4] [5] The range is named after anthracite, a high-quality, metamorphized coal found in the sedimentary rock of the Mesaverde Formation at the base of this and nearby laccoliths. [4]
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. [3] As a fossil fuel burned for heat, coal supplies about a quarter of the world's primary energy and two-fifths of its ...
The region lies at the northern edge of the Ridge-and-Valley Appalachians, and draws its name from the vast deposits of anthracite coal that can be found under several of the valleys in the region. The Wyoming Valley is the most densely populated of these valleys, and contains the cities of Wilkes-Barre , Greater Pittston , and Scranton .
A rock with high economic value from Pennsylvania is anthracite coal. Before mining began, there was an estimated 22.8 billion tons of anthracite in Pennsylvania. In 2001, 12 billion tons still remained in the ground, most of which was not economically feasible to mine. [3]
The Western Middle Anthracite Field is a large basin containing veins of anthracite coal in Pennsylvania.The region is in the Appalachian Mountains and is the third-largest anthracite field in the anthracite region in Eastern Pennsylvania behind the Southern and Northern Fields. [1]
The Philippines consumes more coal than it can produce and coal is the main source of electricity. 20% of the country's coal supply is used by the cement industry (in 2005). [ 10 ] As of September 31, 2005, the in situ coal reserves of the Philippines amounts to 458 million metric tons which is about 18% of the country's total coal resource ...
The Pittsburgh coal seam is the thickest and most extensive coal bed in the Appalachian Basin; [1] hence, it is the most economically important coal bed in the eastern United States. The Upper Pennsylvanian Pittsburgh coal bed of the Monongahela Group is extensive and continuous, extending over 11,000 mi 2 through 53 counties.