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Hettinger, R.D., Roberts, L.N.R., and Kirschbaum, M.A., 2004, Coal resources and coal resource potential in the Grand Mesa, Gunnison, and Uncompahgre National Forests, Colorado, Chapter M, in Bankey, V., ed., Resource potential and geology of the Grand Mesa, Uncompahgre, and Gunnison (GMUG) National Forests and vicinity, Colorado: U.S. Geological Survey Bulletin 2213, p. 188-223.
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Houseknecht, D.W., 2004, Short Course B: Petroleum Source Rocks and Coal, a Core Workshop, in Bragg, L. J., Lentz, E.E., Warwick, P.D., Finkelman, R.B., and Trippi, M.H., eds., Proceedings of the Twentieth Annual Meeting of The Society for Organic Petrology: U.S. Geological Survey Open-File Report 2004-1283, Version 1, 56 p. [CD-ROM].
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Huffman, A.C., Jr., Kinney, S.A., Biewick, L.R.H., Mitchell, H.R., and Gunther, G.L., 2004, Gulf Coast Geology (GCG) Online - Miocene of Southern Louisiana: U.S. Geological Survey Data Series DS-90-A, Version 1, 2 p.
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Kolak, J.J., and Burruss, R.C., 2004, A Geochemical Investigation into the Effect of Coal Rank on the Potential Environmental Effects of CO2 Sequestration in Deep Coal Beds: U.S. Geological Survey Open-File Report 2004-1370, 18 p.
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Kolker, A., Hatch, J.R., Palmer, C.A., and Bragg, L.J., 2004, Mercury Variation in Powder River Basin Coal Samples, in Bragg, L. J., Lentz, E.E., Warwick, P.D., Finkelman, R.B., and Trippi, M.H., eds., Proceedings of the Twentieth Annual Meeting of The Society for Organic Petrology: U.S. Geological Survey Open-File Report 2004-1283, Version 1, p. 32-34. [CD-ROM].
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Kolker, A., Palmer, C. A., and Ruppert, L.F., 2004, Short Course C: Modes of Occurrence of Trace Elements in Coal, in Bragg, L. J., Lentz, E.E., Warwick, P.D., Finkelman, R.B., and Trippi, M.H., eds., Proceedings of the Twentieth Annual Meeting of The Society for Organic Petrology: U.S. Geological Survey Open-File Report 2004-1283, Version 1, 151 p. [CD-ROM].
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Milici, R.C., 2004, A FieldTrip Excursion: Geology and Energy Resources of the Triassic Basins of Northern Virginia; Old mines and geology of the Richmond Basin, in Bragg, L. J., Lentz, E.E., Warwick, P.D., Finkelman, R.B., and Trippi, M.H., eds., Proceedings of the Twentieth Annual Meeting of The Society for Organic Petrology: U.S. Geological Survey Open-File Report 2004-1283, Version 1, 27 p. [CD-ROM].
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Rowan, E.L., Ryder, R.T., Repetski, J. E., Trippi, M.H., and Ruppert, L.F., 2004, Initial Results of a 2D Burial/Thermal History Model, Central Appalachian Basin, Ohio and West Virginia: U.S. Geological Survey Open-File Report 2004-1445, 38 p.
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Warwick, P.D., Breland, F.C., Jr., Clark, A.C., and Willett, J.C., 2004, Preliminary Results from Coal-Bed Methane Drilling in Ouachita Parish, Louisiana: U.S. Geological Survey Open-File Report 2004-1239, 4 p.
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Barker, C.E., Dallegge, T.A., and Clark, A.C., 2003, USGS Coal Desorption Equipment and a Spreadsheet for Analysis of Lost and Total Gas from Canister Desorption Measurements: U.S. Geological Survey Open-File Report 02-496, Version 1.0, 11 p. [CD-ROM].
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Outerbridge, W.F., 2003, Isopach map and regional correlations of the Fire Clay Tonstein, central Appalachian Basin: U.S. Geological Survey Open-File Report 03-351, 34 p.
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Schweinfurth, S.P., and Finkelman, R.B., 2003, Coal - A Complex Natural Resource; An overview of factors affecting coal quality and use in the United States, with a contribution on coal quality and public health: U.S. Geological Survey Circular 1143, 39 p.
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Bullock, J.H., Jr., Cathcart, J.D., and Betterton, W.J., 2002, Analytical methods utilized by the United States Geological Survey for the analysis of coal and coal combustion by-products: U.S. Geological Survey Open-File Report 02-389, 13 p.
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Dulong, F.T., Fedorko, N., Renton, J.J., and Cecil, C. B., 2002, Chemical and mineralogical analyses of coal-bearing strata in the Appalachian Basin: U.S. Geological Survey Open-File Report 02-0489.
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Johnson, E.A., Martirosyan, A., Pierce, B.S., Malkhassian, G., and Brownfield, M.E., 2002, Geologic map of the Nor Arevik coal site, southern Armenia: U.S. Geological Survey Miscellaneous Field Studies Map MF-2380, 16 p.
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Karlsen, A.W., Warwick, P.D., Hook, R.W., San Filipo, J.R., Barker, C.E., and Klein, J.M., 2002, Characterization of Core Extracted from the Olmos Formation (Cretaceous), Southwest Texas: U.S. Geological Survey Open-File Report 02-417, 66 p.
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Landis, E.R., Rohrbacher, T. J., Barker, C.E., Fodor, B., and Gombar, G., 2002, Coalbed Gas in Hungary--A Preliminary Report: U.S. Geological Survey Open-File Report 01-473, version 1.0, 28 p. [CD-ROM].
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Tuttle, M.L., Goldhaber, M.B., Ruppert, L.F., and Hower, J.C., 2002, Arsenic in rocks and stream sediments of the central Appalachian Basin, Kentucky: U.S. Geological Survey Open-File Report 02-0028, 166 p.
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Ellis, M.S., Rohrbacher, T.J., Molnia, C.L., Osmonson, L.M., and Scott, D.C., 2001, Economic and Environmental Evaluations of Extractable Coal Resources Conducted by the U.S. Geological Survey: U.S. Geological Survey Fact Sheet FS-109-01, 2 p.
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Karlsen, A.W., Schultz, A.C., Warwick, P.D., Podwysocki, S.M., and Lovern, V.S., 2001, Coal Geology, Land Use, and Human Health in the People's Republic of China: U.S. Geological Survey Open-File Report 01-318, version 1.0, on line version only.
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Attanasi, E.D., and Pierce, B.S., 2000, Forces shaping future U.S. coal production and use: U.S. Geological Survey Fact Sheet FS-158-00, Version 1.1, 2 p.
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Huber, D.W., and Pierce, B.S., 2000, Potential Minability and Economic Viability of the Antaramut-Kurtan-Dzoragukh Coal Field, North-Central Armenia: A Prefeasibility Study: U.S. Geological Survey Bulletin 2178, 34 p.
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Osmonson, L.M., Rohrbacher, T.J., Molnia, C.L., and Sullivan, G.L., 2000, Coal recoverability in the Hilight Quadrangle, Powder River Basin, Wyoming: a prototype study in a western coal field: U.S. Geological Survey Open-File Report 00-103, 23 p.
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Pierce, B.S., Malkhasian, G., and Martirosyan, A., 2000, The Nor Arevik Coal Deposit, Southern Armenia: U.S. Geological Survey Bulletin 2177, 66 p.
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Pierce, B.S., Malkhasian, G., and Martirosyan, A., 2000, The Jajur Coal Deposit, Northwestern Armenia: U.S. Geological Survey Bulletin 2176, 71 p.
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Pierce, B.S., Malkhasian, G., and Martirosyan, A., 2000, The Shamut Coal Deposit, North-Central Armenia: U.S. Geological Survey Bulletin 2175, 68 p.
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Podwysocki, S.M., and Lovern, V.S., compilers, 2000, Coal-bearing regions and structural sedimentary basins of China and adjacent seas: U.S. Geological Survey Open-File Report 00-047.
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SanFilipo, J.R., 2000, A primer on the occurrence of coalbed methane in low-rank coals, with special reference to its potential occurrence in Pakistan: U.S. Geological Survey Open-File Report 00-293, 13 p.
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Warwick, P.D., Barker, C.E., San Filipo, J.R., and Morris, L.E., 2000, Preliminary results from coal-bed methane drilling in Panola County, Texas, in Houston Geological Society Coalbed Methane Workshop, March 9, 2000: U.S. Geological Survey Open-File Report 00-048, version 1.0, 30 p.
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Ewing, T.E., 1999, Regional geologic setting of South Texas and the Santo Thomas coal deposits, Chapter 1, in Warwick, P. D., Aubourg, C.E., and Willett, J.C., eds., Tertiary coals in South Texas; anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene); geologic setting, character, source-rock and coal-bed methane potential: U.S. Geological Survey Open-File Report 99-301, p. 5-12.
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Hook, R.W., and Warwick, P.D., 1999, The San Pedro and Santo Tomas coal beds (Clairborne Group, Eocene) of Webb County, Texas, Chapter 2, in Warwick, P. D., Aubourg, C.E., and Willett, J.C., eds., Tertiary coals in South Texas; anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene); geologic setting, character, source-rock and coal-bed methane potential: U.S. Geological Survey Open-File Report 99-301, p. 13-22.
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Molnia, C.L., Roberts, L.N.R., Brownfield, M.E., Dubiel, R.F., Fassett, J.E., Hettinger, R.D., and Johnson, E.A., 1999, Federally Owned Coal and Federal Lands in the Colorado Plateau Region: U.S. Geological Survey Fact Sheet FS-145-99, 4 p.
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SanFilipo, J.R., 1999, Some speculations on coal-rank anomalies of the South Texas Gulf Province and adjacent areas of Mexico and their impact on coal-bed methane and source rock potential, Chapter 4, in Warwick, P. D., Aubourg, C.E., and Willett, J.C., eds., Tertiary coals in South Texas; anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene); geologic setting, character, source-rock and coal-bed methane potential: U.S. Geological Survey Open-File Report 99-301, p. 37-47.
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USGS, 1999, Coal Resource Classification System of the U.S. Bureau of Mines and U.S. Geological Survey--Mineral Resource Classification Systems of the U.S. Bureau of Mines and the U.S. Geological Survey: U.S. Geological Survey Bulletin 1450-B.
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Warwick, P.D., Crowley, S.S., Ruppert, L.F., and Pontolillo, J., 1999, The San Miguel lignite deposit, Jackson Group (Eocene), South Texas, Chapter 3, in Warwick, P. D., Aubourg, C.E., and Willett, J.C., eds., Tertiary coals in South Texas; anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene); geologic setting, character, source-rock and coal-bed methane potential: U.S. Geological Survey Open-File Report 99-301, p. 23-26.
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Warwick, P.D., Hook, R.W., and SanFilipo, J.R., 1999, Tertiary Coals in South Texas: Anomalous Cannel-Like Coals of Webb County (Claiborne Group, Eocene) and Lignites of Atascosa County (Jackson Group, Eocene) - Geologic Setting, Character, Source-rock and Coal-bed Methane Potential, in Warwick, P. D., Aubourg, C.E., and Willett, J.C., eds., 1999 AAPG Annual Convention Energy Minerals Division Field Trip # 15, Field Trip Guidebook: U.S. Geological Survey Open-File Report 99-301, 55 p.
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Warwick, P.D., Hook, R.W., and SanFilipo, J.R., 1999, Tertiary coals in South Texas; anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene); geologic setting, character, source-rock and coal-bed methane potential, Warwick, P.D., Aubourg, C: U.S. Geological Survey Open-File Report 99-301, 47 p.
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Warwick, P.D., SanFilipo, J.R., and Finkelman, R.B., 1999, U.S. Geological Survey International Activities in Coal Resources: U.S. Geological Survey Fact Sheet FS-119-99, 4 p.
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Attanasi, E.D., and Milici, R.C., 1998, Appalachian Basin Bituminous Coal: Weight Percent Sulfur of Produced Coal by County, As Received at the Power Plant; (digital compilation by Kallander, W.C., and Wallace, W.G.): U.S. Geological Survey Open-File Report 98-763.
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Finkelman, R.B., and Tewalt, S.J., 1998, Mercury in U.S. coal: U.S. Geological Survey Open-File Report 98-0772.
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SanFilipo, J.R., and Warwick, P.D., 1998, Bibliography of selected reports on USGS international coal-related activities: U.S. Geological Survey Open-File Report 98-350, 29 p.
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Biewick, L.R.H., Hettinger, R.D., and Roberts, L.N.R., 1997, Selected Arc/INFO coverages created for investigations of the distribution and resources of coal in the Kaiparowits Plateau, southern Utah; an accompaniment to Hettinger and others, 1996, version 1: U.S. Geological Survey Open-File Report 97-709, 26 p.
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Briggs, P.H., 1997, Determination of 25 elements in coal ash from 8 Argonne Premium Coal samples by inductively coupled argon plasma-atomic emission spectrometry, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, p. 39-43.
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Doughten, M.W., 1997, Determination of selected elements in coal ash from 8 Argonne Premium Coal samples by atomic absorption spectrometry and atomic emission spectrometry, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144.
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Evans, J.R., Sellers, G.A., Johnson, R.G., Vivit, D.V., and Kent, J., 1997, Determination of major and trace elements in eight Argonne Premium Coal samples (ash and whole coal) by X-ray fluorescence spectrography, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, p. 19-24.
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Fletcher, J.D., and Skeen, C.J., 1997, Determination of 18 elements in 5 whole Argonne Premium Coal ash samples by quantitative direct-current arc atomic emission spectrography, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, p. 13-17.
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Hageman, P.L., and Walsh, E., 1997, Arsenic, antimony, and selenium by flow injection or continuous flow-hydride generation-atomic absorption spectrometry, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, 3 p.
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Krasnow, M.R., and Finkelman, R.B., 1997, Rehydration of Desiccated Argonne Premium Coal samples, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, p. 5-6.
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Meier, A.L., 1997, Determination of 33 elements in coal ash from 8 Argonne Premium Coal samples by inductively coupled argon plasma-mass spectrometry, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, p. 45-50.
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Meier, A.L., Lichte, F.E., Briggs, P.H., and Bullock, J.H., Jr., 1997, Coal ash by inductively coupled plasma-atomic emission spectrometry, in Palmer, C. A., ed., Analytical Methods for the Mineral Surveys Program: U.S. Geological Survey Bulletin 2144.
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Milici, R.C., 1997, The COALPROD Database; Historical Production Data for the Major Coal-Producing Regions of the Conterminous United States: U.S. Geological Survey Open-File Report 97-447, 18 p.
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Molnia, C.L., Biewick, L.R.H., Blake, D., Tewalt, S.J., Carter, M.D., and Gaskill, C., 1997, Coal availability in the Hilight quadrangle, Powder River Basin, Wyoming; a prototype study in a western coal field: U.S. Geological Survey Open-File Report 97-469, 21 p.
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O'Leary, R.M., 1997, Mercury in whole coal and biological tissue by continuous flow-cold vapor-atomic absorption spectrometry, in Palmer, C. A., ed., The Chemical Analysis of Argonne Premium Coal Samples: U.S. Geological Survey Bulletin 2144, 2 p.
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http://pubs.usgs.gov/bul/b1823/08.htm
Brown, F.W., and Smith, H., 1989, Analysis of Coal Ash by Atomic Absorption Spectrometric and Spectrophotometric Methods, Chapter 6, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 59-68.
http://pubs.usgs.gov/bul/b1823/06.htm
Dorrzapf, A.F., Jr., Skeen, C.J., and Crandell, W.B., 1989, Automated Semiquantitative Direct-Current Arc Spectrographic Determination of 64 Elements in Coal Ash, Chapter 3, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 32-40.
http://pubs.usgs.gov/bul/b1823/03.htm
Golightly, D.W., and Simon, F.O., 1989, Appendix: Reference Materials for Coal Analysis, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 101-107.
http://pubs.usgs.gov/bul/b1823/append.htm
Golightly, D.W., and Simon, F.O., eds., 1989, Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, 107 p.
http://pubs.usgs.gov/bul/b1823/
Johnson, R.G., Sellers, G.A., and Fleming, S.L., II, 1989, The Determination of Major and Minor Elements in Coal Ash and of Chlorine and Phosphorus in Whole Coal by X-ray Fluorescence Spectrometry, Chapter 5, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 52-58.
http://pubs.usgs.gov/bul/b1823/05.htm
Kane, J.S., 1989, The Determination of Selected Elements in Coal Ash by Atomic Absorption Spectrometry, Chapter 7, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 69-81.
http://pubs.usgs.gov/bul/b1823/07.htm
Kirschenbaum, H., 1989, The Determination of Fluoride in Coal by Ion-Selective Electrode, Chapter 9, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 86-89.
http://pubs.usgs.gov/bul/b1823/09.htm
Palmer, C.A., and Baedecker, P.A., 1989, The Determination of 41 Elements in Whole Coal by Instrumental Neutron Activation Analysis, Chapter 4, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 41-51.
http://pubs.usgs.gov/bul/b1823/04.htm
Pierce, B.S., and Stanton, R. W., 1989, Pyritic sulfur and trace-element affinities in facies of the Upper Freeport coal bed, Allegheny Formation, west-central Pennsylvania [abs.], in Carter, L. M. H., ed., U.S. Geological Survey research on energy resources--1990, Program and abstracts, Sixth V.E. McKelvey Forum on Mineral and Energy Resources, Houston, TX, Feb. 20-22, 1990: U.S. Geological Survey Circular 1060, p. 64-66.
http://pubs.er.usgs.gov/pubs/cir/cir1060
Rait, N., and Aruscavage, P.J., 1989, The Determination of Forms of Sulfur in Coal, Chapter 10, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 90-100.
http://pubs.usgs.gov/bul/b1823/10.htm
Stanton, R.W., 1989, Sampling of Coal Beds for Analysis, Chapter 1, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 13-23.
http://pubs.usgs.gov/bul/b1823/01.htm
Walthall, F.G., and Fleming, S.L., II, 1989, Preparation of Coal for Analysis, Chapter 2, in Golightly, D. W., and Simon, F.O., eds., Methods for Sampling and Inorganic Analysis of Coal: U.S. Geological Survey Bulletin 1823, p. 24-31.
http://pubs.usgs.gov/bul/b1823/02.htm
Breger, I.A., 1977, Coalification, in Meissner, C. R., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 4.
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Carter, M.D., and Wood, G.H., 1977, The National Coal Resources Data System, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 18.
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Clarke, A.M., and Slater, J.M., 1977, Coal-mining geology, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 7-8.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Coleman, J.M., and Whelan, T., III, 1977, Coal environments, in Meissner, C. R., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 1.
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Cooper, B.V., 1977, Reclamation of Eastern surface mines, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 12.
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Dunrud, C.R., 1977, The role of geology in coal mining, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 8-10.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Englund, K.J., 1977, U.S. Geological Survey projects in coal geology of the Eastern United States, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 20.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Gray, R.J., 1977, Selection of coals for coke making, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 15-16.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Hasbrouck, W.P., 1977, Geophysics in coal exploration and development, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 10.
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Mapel, W.J., 1977, U.S. Geological Survey projects in western coal geology, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 19.
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Medlin, J.H., Swanson, V.E., Hatch, J.R., and Coleman, S.L., 1977, Major, minor and trace elements in U.S. coal, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 6.
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Meissner, C.R., Jr., Cecil, C.B., and Stricker, G. D., 1977, Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, 20 p.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Mills, G.A., 1977, Characteristics of coal relative to synfuels, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 13.
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Neavel, R.C., 1977, Coal science related to utilization, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 13-14.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Schmidt, R.A., 1977, Electric utility industry strategy for research in coal geology, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 16-17.
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Schmidt, W.B., and Corwine, J.W., 1977, Improved mining techniques as related to geology, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 8.
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Shown, L.M., 1977, Hydrologic aspects of the rehabilitation potential of surface-minable coal lands in the West, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 10-11.
http://pubs.er.usgs.gov/usgspubs/cir/cir757
Simon, J.A., 1977, Geology and eastern coal, in Meissner, C. R., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757.
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Spackman, W., Jr., 1977, Expanding horizons in coal petrology, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757.
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Spitz, P.H., 1977, Coal as a chemical resource, in Meissner, C. R., Jr., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757, p. 14-15.
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Weimer, R.J., and Land, C.B., 1977, Stratigraphy and tectonics of western coals, in Meissner, C. R., Cecil, C.B., and Stricker, G.D., eds., Coal geology and the future; symposium abstracts and selected references: U.S. Geological Survey Circular 757.
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Motooka, J.M., and Grimes, D.J., 1976, Analytical precision of one-sixth order semiquantitative spectrographic analysis: U.S. Geological Survey Circular 738, 4 p.
http://pubs.er.usgs.gov/usgspubs/cir/cir738
Swanson, V.E., and Huffman, C., Jr., 1976, Guidelines for Sample Collecting and Analytical Methods Usedin the U.S. Geological Survey for Determining Chemical Composition of Coal: U.S. Geological Survey Circular 735, 11 p.
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178 online reference(s) found in Energy Publications Database.