How To Use Coal seam In A Sentence
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It was then decided that a horizontal drive, to mine the exposed coal seam, should be dug.
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Coal seam gas, or coal bed methane, has for centuries been an explosive hazard for miners.
Times, Sunday Times
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If clinker is found on the ground, a coal seam is bound to be underneath.
The Volokh Conspiracy » An Insufficiently Deferential D.C. Circuit?
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The average UK coal seam is one metre thick.
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Their bodies have still not been recovered because of a fire burning in a coal seam.
Times, Sunday Times
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Coal bed methane is a type of natural gas found in underground coal seams.
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This paper is a guide to precise determination of the content of coal seam methane.
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Table 3. 2 provides individual estimate for gaseous coal seams with the geometric mean used wherever a wide spread is given.
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Surface mining began in the United States in the late eighteenth century, when farmers and others dug coal from exposed coal seams on hillsides and stream banks.
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And while you're gadding about, why not visit the biblical-sounding Burning Mountain - which actually is burning, and has been for about a thousand years, ever since an underground coal seam caught fire.
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Exploration for hydrocarbons has resulted in drilling to basement in many basins and, where coal seams occur close to the surface, opencast mining has exposed the strata.
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Where found alternating with massive mudstone and thin coal seams, these sands probably formed as sheet-like floodplain deposits.
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In 1976, Old Ben Coal Co., with Federal assistance, began a trial of modern mechanized longwall mining in a new area of their No.24 mine in the Herrin Coal seam.
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The boundary condition was studied in the case that the source rock or coal seams occur above or under the simulated coal series.
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Coal seams intermixed with iron ore.
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Generations of his forefathers had worked as miners, loyal to the union and at major risk of terrible injuries as they worked the kingdom's coal seams.
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One bucket-wheel excavator removes the relatively thin overburden and exposes the coal seam.
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After the coal seam is mined, the coal operator may move on to reclamation, perhaps by planting lespedeza sericea, a hardy imported ground cover.
Rebecca R. Scott: Almost Heaven or Almost Hell? Fossil Fuels, Paychecks and Nature
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Thus, an industrially valuable coal seam requires special conditions to accumulate.
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They plan to pump a suspension of catalysts in steam and air or hydrogen, down into a coal seam.
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After the coal seam is mined, the coal operator may move on to reclamation, perhaps by planting lespedeza sericea, a hardy imported ground cover.
Rebecca R. Scott: Almost Heaven or Almost Hell? Fossil Fuels, Paychecks and Nature
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Their bodies have still not been recovered because of a fire burning in a coal seam.
Times, Sunday Times
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In the vicinity of Casa Rinconada the coal seams are thin, and the coal varies from lignite to subbituminous.
Tseh So, a Small House Ruin, Chaco Canyon, New Mexico :
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In some places surface blazes ignited peat and coal seams, causing underground fires that are difficult to extinguish.
Times, Sunday Times
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Another is a rounded piece of clinker, a porous material that results from the burning of coal seams.
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When they're functioning, the systems spray water on the longwall's cutting tool, known as a shearer, and along the coal seam as the shearer cuts into it.
NPR Topics: News
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Their bodies have still not been recovered because of a fire burning in a coal seam.
Times, Sunday Times
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The technique uses two bore holes drilled into a coal seam.
Times, Sunday Times
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The shale beds above and below the coal seams range in depth from twenty to sixty feet and represent a period when the sea advanced and flooded the swamplands in which the forests grew.
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They plan to pump a suspension of catalysts in steam and air or hydrogen, down into a coal seam.
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Coal body is watered by deep hole high pressure above mid-hard coal seam to soften the harder coal so as to improve the working efficience. It's a new way for mechanization mining in harder seam.
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In thinner coal seams miners would have to hack out coal with a pickaxe while lying on their sides.
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There was a coal seam on his property, a V-shaped trench behind the old homesite where the farm family had dug out chunks for home use.
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Some men will hide in the coils of DNA, a few atoms that spell red hair, and they'll flare up for centuries to come like a fire in a coal seam, stubborn and inextinguishable.
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Their bodies have still not been recovered because of a fire burning in a coal seam.
Times, Sunday Times
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The average UK coal seam is one metre thick.
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Table 3. 2 provides individual estimate for gaseous coal seams with the geometric mean used wherever a wide spread is given.
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The occurrence of low-volatile coal in certain coalfields in India is attributed to the carbonization of coal seams by the intrusion of mica lamprophyre which is a mica-rich ultrabasic rock containing altered olivine, calcite (or dolomite), bronze-coloured mica and apatite.
4.1 Geological investigations
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Coal seams intermixed with iron ore.
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The average UK coal seam is one metre thick.
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CSG is extracted via wells which are drilled down into coal seams - the water is pumped out and the CSG is then released (desorbed) from the coal.
Peak Energy
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Notice that the lower coal seam has vertical trees jutting out of it.
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Where the 1979 regulations required haulage and placement of the rock and soil in compacted, constructed, engineered fills, OSM weakened the rules to allow end-dumping and wing-dumping from the mine bench of excessive amounts of mine "spoil" -- the soil and rock removed from above coal seams, into headwater streams.
Undefined
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This facies comprises interlaminated to interbedded, dark grey to black carbonaceous claystone and coaly stringers that often grade vertically and laterally into economically exploitable coal seams.
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Their bodies have still not been recovered because of a fire burning in a coal seam.
Times, Sunday Times
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Realizing that the stigmarian roots were part of the plants that made up the coal seams, Logan communicated his observations to the Geological Society of London in February 1840 and later published them as an abstract in the Proceedings and in full in the Transactions.
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While this is small when compared with Taranaki's Pohokura gasfield, which is estimated at up to 1200 petajoules, and the Kupe field at up to 300 petajoules, experts are forecasting coal seam gas has the potential to add up to 15 per cent to New Zealand's gas supply.
Stuff.co.nz - Stuff
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The Joggins Formation, on the coast of Nova Scotia, contains fossilized trees five to six metres in height preserved upright in layers of sandstone and shale, as well as numerous coal seams.
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Making use of horizontal pinnate branch well to develop and utilize coal seam gas, is a new drilling technique, which is different from horizontal drilling and has its own uniqueness.
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Another is a rounded piece of clinker, a porous material that results from the burning of coal seams.
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The technique uses two bore holes drilled into a coal seam.
Times, Sunday Times
