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  • MSHA - Coal Mine Fatal Accident Investigation Report ...

    The mine extracts coal from the Elkhorn No. 3 coal seam, which averages about 38 inches in height. Overburden ranges up to a maximum of about 800 feet. Approximately 350 to 400 feet of interburden separates the Elkhorn No. 3 seam from the overlying Hazard No. 4 seam. Portions of the Hazard No. 4 seam have been mined on the property.

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  • Coal Seam - Bob Bradley - Mines Rescue

    Mountain or First coal (at Alderwasley) the lowest seam, below which is the Millstone Grit rock the recognised base of the coal seams. Local variations of seam thickness and very often, different names for the same seam abounded as can be seen e.g.

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  • Final Report - Fatality #10 - June 25, 2012 | Mine Safety ...

    Mine No. 23 was mining in the No. 3 Elkhorn coal seam under approximately 600 feet of cover. The coal seam averages approximately 48 inches in thickness. The total mining height including rock taken above the coal seam is 60 to 66 inches.

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  • MSHA - Coal Mine Fatal Accident Investigation Report ...

    The mine extracts coal from the Elkhorn No. 3 coal seam, which averages about 38 inches in height. Overburden ranges up to a maximum of about 800 feet. Approximately 350 to 400 feet of interburden separates the Elkhorn No. 3 seam from the overlying Hazard No. 4 seam. Portions of the Hazard No. 4 seam have been mined on the property.

    Get Price
  • Coal Seam. - Rockport, Kentucky

    This particular seam of coal is about 55 inches thick and eighty feet below the surface of the earth. A coal seam much thicker than 60 inches is uncommon in the state of Kentucky. Coal seams in the forty inch range is more prevalent.

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  • Coal Seam - an overview | ScienceDirect Topics

    Gas content of coal seams vary from a few ft 3 /t to 800 ft 3 /ton for depth up to 3000 ft. Coal seams are the source as well as the reservoir for all gases. Methane is the major component of gas in coal, comprising 80%–95% of the total gas content.

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  • Sullivan County, Indiana early Coal Mines

    A mine at a depth of 109 feet with a coal seam of 5 feet 9 inches. Monon No. 15 Coal Mine [1912] Owned by Monon Coal Company Located in Cass Township - T 8 N, R 8 W, Section 34 on the I. C. Railroad A mine at a depth of 120 feet with a coal seam of 5 feet 6 inches.

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  • Snapp Teslovich Non Coal Packet.pa.us

    Coal seam or indicated and less than 28 inches thick. Coal seam measured or indicated and greater than 28 inches thick. Coal seam mined out. drill In individ the but the Coal RELIABIL GENE 28 inches thick by G, Compiled by Mark A. Sholes Viktoras W. Skema 1974 1975 DISTRIBUTION AND THICKNESS OF THE WASHINGTON COAL

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  • How many tons of coal would be contained in an acre of ...

    Coal normally weighs 80 - 85 pounds per cubic foot or converted and rounded off, 145 tons per acre inch. One acre then would be 30 times 145 or 4,350 tons.

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  • Peter Blum Gallery

    Coal Seam, Bergwerk Prosper-Haniel #5, 2013 pigment inkjet print 57 x 50 inches (145 x 127 cm)

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  • KGS--Wabaunsee Group Coal Resources--County Data

    According to Wilson, the coal consisted of two seams, the upper of which was 12 to 14 inches thick and the lower, separated from the upper by 1.5 to 3 inches of shale, measured 3 inches in thickness. Elmo coal was also mined by stripping and drifting on the Carson farm in the NW sec. 22, T. 5 S., R. 18 E.

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  • Exhibition Coal Mine, Beckley, West ia

    The coal seam in Beckley is 180 feet underground and 40 inches high. There are plenty of places where it can still be seen, which makes one wonder whythe mine was closed -- except maybe because the place was so dangerous.

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  • Vermillion County, Indiana early Coal Mines

    A shaft mine with a coal seam of 5 feet 10 inches to 6 feet 6 inches. [1898] Located one and one-half miles northwest of the city of Clinton, on a branch of the Chicago & Eastern Illinois Railroad. The coal seam is from 5 feet 10 inches to 6 feet 6 inches thick. [1905] Owned by McClellan Coal Company. Abandoned in January 1905.

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  • Coal, Kentucky Geological Survey, University of Kentucky

    Discontinuities and obstacles: Clay veins can completely or partially replace a seam with clay, causing a vertical discontinuity in the coal seam. Clay veins are also commonly associated with small offsets (clay-vein faults), which offset the coal inches to several feet.

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  • Plows vs. shearers? Seam width is the determining factor

    In longwalls taller than 2.3 meters (90.6 inches), shearers become the most suitable extraction technique; The ability to successfully mine in low seams will continue to become more and more important as the coal in thick seams is depleted and there is a need to access the numerous reserves of high-quality coal remaining in thin seams.

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  • Vigo County, Indiana early Coal Mines - Wayne's World of ...

    A mine at a depth of 106 feet with a coal seam of 4 feet 6 inches. Clovelly Coal Company [1912] New Company Deep Vein Coal Mine [1903] Owned by the Deep Vein Coal Company. Located on the Vandalia Railroad. A shaft mine, 8 feet x 10 feet, at a depth of 170 feet with a coal seam of 6 feet.

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  • The Yorkshire Coalfield | The Friends of Hemingfield Colliery

    The Silkstone or Black Shale is a house and gas coal of very high quality, and is probably the best known of all the seam of the district. The thickness along the outcrop has been from 4 feet 6 inches to 5 feet, but is variable at greater depths. The Parkgate of South Yorkshire ( Deep Hard of Derbyshire)...

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  • State Coal Mine

    In the upper sections, the coal has an ash content of 25% and is not mined. What is known as "the holing band" consists of 10 inches of good coal that forms the bottom of the seam. Above this is 5 foot 6 inches of solid coal, free from dirt bands.

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  • Coal Availability Mapping

    Coal Resource Constraints. Only coal that is >14 inches thick is considered for resource consideration. Surface-minable coal has an overburden-to-coal thickness ratio that is <20:1; underground-minable coal has a >20:1 overburden-to-coal thickness ratio. Surface-minable coal must be >14 inches thick for resource consideration.

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  • ELKINS COALFIELD

    Evidently, the Pittsburgh coal seam was economically mineable around the Gilmer - Braxton County line, because there was a cluster of several mines exploiting this coal vein, which was around 84 inches thick in this area. These mines were Glimer, Vanwith, Copen, Bower, and Braxton.

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  • Longwall mining - SourceWatch

    According to the Energy Information Administration, longwall mine seam heights average 71 inches in Appalachia, 86 inches in the Illinois Basin, and 127 inches in the West. Assuming 1800 tons of recoverable coal per acre foot, the amount of surface area affected by .

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  • New ® GH800B Longwall Plow System Achieves High ...

    Building on the attributes of the proven GH1600 Plow System, the longwall team in Lünen, Germany, worked with the German Ibbenbüren mine to design and construct a system for mining an anthracite seam averaging only 0.85 meters (33.5 inches) thick.

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  • Forked seams sabotage swamp theory

    Forked seams sabotage swamp theory. The coal seam it is resting against is about 10 centimetres (4 inches) thick, while along the top of the photograph can be seen another coal seam which is about 15cm (6 inches) thick and roughly parallel to the bottom coal .

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  • Plows vs. shearers? Seam width is the determining factor

    In longwalls taller than 2.3 meters (90.6 inches), shearers become the most suitable extraction technique; The ability to successfully mine in low seams will continue to become more and more important as the coal in thick seams is depleted and there is a need to access the numerous reserves of high-quality coal remaining in thin seams.

    Get Price
  • Knox County, Indiana early Coal Mines - Wayne's World of ...

    Knox County, Indiana Coal Mines. A shaft mine 8 feet x 16 feet, at a depth of 210 feet with a coal seam of 4 feet 6 inches. Developed on May 16, 1904 and shipped coal on November 12, 1904. Opened within the past year. A slope mine with a coal seam of 4½ feet. The opening was .

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  • Major Mines & Projects | No. 7 Mine

    The average seam thickness for coal horizons in these formations ranges from less than 1 foot to more than 5 feet. Within the subject Properties, coal zones can locally exceed 10 feet where individual coal beds merge to form a single mineable unit.

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  • Notts Coalfield Geology. | Coal, Colliery and Mining Forum.

    Jul 04, 2011 · The coal measures axe nearly 3,000 feet thick, and there are at least forty distinct seams of coal, varying in thickness from about an inch to six feet. Each seam represents a change in the level of the ground, sometimes caused by a subsidence and a gathering of water, and sometimes by an upheaval of the surrounding land; the vegetation beneath ...

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  • TECHNICAL ASSISTANCE ADVISORY 97-004 SUBJECT: .

    The seam thickness of thir ty-seven inches to forty-five inches would be subject to a rate of 2% of the gross value of coal produced . For coal mined by underground methods from seams with an average thickness of less than thirty-seven inches, the rate is 1% of the gross value of coal produced. Currently, the severance tax rate for coal produced by underground methods is 5% of the gross value of coal .

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  • ELKINS COALFIELD

    Evidently, the Pittsburgh coal seam was economically mineable around the Gilmer - Braxton County line, because there was a cluster of several mines exploiting this coal vein, which was around 84 inches thick in this area. These mines were Glimer, Vanwith, Copen, Bower, and Braxton.

    Get Price
  • Coal Miners Lobby Congress To Fully Fund Black Lung Tax : NPR

    Jul 23, 2019 · Dutton remembered "a little seam of coal probably 8 inches thick." But the cutting drum on the mining machine "had to cut it 6 1/2 foot high. We did that for a year."

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