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Full-Text Articles in Physical Sciences and Mathematics

Overview Of Environmental Regulations That Affect Coal Combustion, Cortland F. Eble Jan 2000

Overview Of Environmental Regulations That Affect Coal Combustion, Cortland F. Eble

Information Circular--KGS

Environmental regulations have had, and continue to have, an effect on the combustion of coal. These regulations largely affect the electric utility industry, the largest consumer of domestic coal, but they ultimately affect everyone, because we all use electricity, and the cost of compliance is usually passed on to the consumer, resulting in higher electric bills.


Coal Resources Of The Lower Elkhorn Coal Bed In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, William M. Andrews Jr., John K. Hiett Jan 2000

Coal Resources Of The Lower Elkhorn Coal Bed In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, William M. Andrews Jr., John K. Hiett

Map and Chart--KGS

This chart is one of a series that shows the regional characteristics of the Lower Elkhorn coal. The maps were prepared as part of the U.S. Geological Survey's Natural Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. The Lower Elkhorn coal is one of the leading producers in the state of Kentucky and has, in some areas, a reputation as an excellent metallurgical-grade coal. It is known locally as the Pond Creek, Imboden, Path Fork, Blue Gem, Straight Creek, Bruin or Vires coal bed. This …


Coal Resources Of The Fire Clay Coal Zone In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, Jeffery A. Esterle, Stephen F. Greb, John K. Hiett Jan 2000

Coal Resources Of The Fire Clay Coal Zone In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, Jeffery A. Esterle, Stephen F. Greb, John K. Hiett

Map and Chart--KGS

This chart is one of a series that shows the regional characteristics of the Fire Clay coal zone. The maps and charts were prepared as part of the U.S. Geological Survey's National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. Within this coal zone, the Fire Clay coal is the most economically important bed and is one of the leading producers in the state of Kentucky. The Fire Clay coal contains a flint-clay parting that is believed to be of volcanic origin. The widespread occurrence …


Mining Geology Of Coals In Western Kentucky, Stephen F. Greb, David A. Williams Jan 2000

Mining Geology Of Coals In Western Kentucky, Stephen F. Greb, David A. Williams

Map and Chart--KGS

Each of the most heavily mined coal seams in the Western Kentucky Coal Field, as indicated by analyses, mine visits, and discussions with mine inspectors and engineers, has its own roof and floor characteristics. Also, because roof rocks above several of the seams are laterally continuous (especially in the Carbondale Formation), roof characteristics related to rock type are often widespread and continuous between mines. This chart discusses the mining geology of three western Kentucky coal beds, highlighted on the stratigraphic column shown in Figure 1.

Additional mining obstacles that can affect all coal beds and roof strata are (1) tectonic …


Total Coal Thickness Of The Upper Elkhorn No. 3a Coal (Lower Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh Jan 2000

Total Coal Thickness Of The Upper Elkhorn No. 3a Coal (Lower Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh

Map and Chart--KGS

This map is one of a series that shows the regional characteristics of the Upper Elkhorn No. 3 coal zone. The maps were prepared as part of the U.S. Geological Survey's National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. The Upper Elkhorn No. 3 coal zone has been one of the leading producers in the state of Kentucky and, in some areas, contains very high-quality coal. The zone is composed of a number of distinct coal beds that merge in some areas to form …


Coal Resources Of The Upper Elkhorn No. 3b Coal (Upper Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh, John K. Hiett Jan 2000

Coal Resources Of The Upper Elkhorn No. 3b Coal (Upper Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh, John K. Hiett

Map and Chart--KGS

This chart is one of a series that shows the regional characteristics of the Upper Elkhorn No. 3 coal zone. The maps and charts were prepared as part of the U.S. Geological Survey's National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. The Upper Elkhorn No. 3 coal zone has been one of the leading producers in the state of Kentucky and, in some areas, is of very high quality. Bed stratigraphy within the Upper Elkhorn No. 3 zone and thickness of the No. 3A …


Coal Resources Of The Upper Elkhorn No. 3a Coal (Lower Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh, John K. Hiett Jan 2000

Coal Resources Of The Upper Elkhorn No. 3a Coal (Lower Bed) In Eastern Kentucky, Jeffery A. Esterle, Ernest E. Thacker, Gerald A. Weisenfluh, John K. Hiett

Map and Chart--KGS

This map is one of a series that shows the regional characteristics of the Upper Elkhorn No. 3 coal zone. The maps were prepared as part of the U.S. Geological Survey's National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. The Upper Elkhorn No. 3 coal zone has been one of the leading producers in the state of Kentucky and, in some areas, is of very high quality. Bed stratigraphy within the Upper Elkhorn No. 3 zone and coal thickness of the No. 3A coal …


Toward An Ecosystem Approach To Remediation In The Great Basin, Ted K. Raab Jan 2000

Toward An Ecosystem Approach To Remediation In The Great Basin, Ted K. Raab

Ted K. Raab

We consider the web of interactions among geologic materials, soils, plants, and animals to ask, "If mining or other extractive energy technologies occur in desert regions, what do we need to know to return the land to productivity?" The Great Basin represents a formidable challenge in this regard, as winters in these cold deserts and seasonal lack of moisture during parts of the year severely constrain the growing season for vegetation. Due to the nature of current or proposed mining activities in this region, we have chosen to concentrate on two potential pollutants: the trace element selenium (Se) and nitrate …


Effects Of Longwall Mining On Hydrology, Leslie County, Kentucky Part 2: During-Mining Conditions, Shelley Minns Hutcheson, James A. Kipp, James S. Dinger, Lyle V.A. Sendlein, Daniel I. Carey, Gregory L. Secrist Jan 2000

Effects Of Longwall Mining On Hydrology, Leslie County, Kentucky Part 2: During-Mining Conditions, Shelley Minns Hutcheson, James A. Kipp, James S. Dinger, Lyle V.A. Sendlein, Daniel I. Carey, Gregory L. Secrist

Report of Investigations--KGS

The effects of longwall coal mining on hydrology in the Eastern Kentucky Coal Field are being investigated. The study area is in the Edd Fork watershed in southern Leslie County, over Shamrock Coal Company's Beech Fork Mine. Longwall panels approximately 700 ft wide are separated by three-entry gateways that are approximately 200 ft wide. The mine is operated in the Fire Clay (Hazard No. 4) coal; overburden thickness ranges from 300 to 800 ft. Mining began in panel 1 in September 1991 and concluded with panel 8 in September 1994. Long-term monitoring consisting of a network of piezometers and time-domain …


Effects Of Longwall Mining On Hydrogeology, Leslie County, Kentucky Part 3: Post-Mining Conditions, Shelley Minns Hutcheson, James A. Kipp, James S. Dinger, Daniel I. Carey, Lyle V.A. Sendlein, Gregory L. Secrist Jan 2000

Effects Of Longwall Mining On Hydrogeology, Leslie County, Kentucky Part 3: Post-Mining Conditions, Shelley Minns Hutcheson, James A. Kipp, James S. Dinger, Daniel I. Carey, Lyle V.A. Sendlein, Gregory L. Secrist

Report of Investigations--KGS

The effects of longwall coal mining on hydrology in the Eastern Kentucky Coal Field have been investigated since 1991. The study area is in the Edd Fork watershed in southern Leslie County, over Shamrock Coal Company's Beech Fork Mine. Longwall panels approximately 700 ft wide are separated by three-entry gateways that are approximately 200 ft wide. The mine is operated in the Fire Clay (Hazard No. 4) coal; overburden thickness ranges from 300 to 800 ft. Mining began in panel 1 in September 1991 and concluded with panel 8 in September 1994. Long-term monitoring consisting of a network of piezometers …


Final Environmental Impact Statement For The Horse Creek Coal Lease Application (Federal Coal Lease Application Wyw141435), United States Department Of The Interior, Bureau Of Land Management Jan 2000

Final Environmental Impact Statement For The Horse Creek Coal Lease Application (Federal Coal Lease Application Wyw141435), United States Department Of The Interior, Bureau Of Land Management

Final Environmental Impact Statements (WY)

This Final Environmental Impact Statement (EIS) assesses the environmental consequences of a federal decision to offer a federal coal tract located in southeastern Campbell County and northeastern Converse County, Wyoming for lease at a competitive, sealed bid sale, subject to standard and special lease stipulations. The Horse Creek Lease By Application (LBA) Tract as applied for by Antelope Coal Company includes approximately 2,840 acres containing approximately 356.5 million tons of federal coal. Antelope Coal Company operates the adjacent Antelope Mine and proposes to mine the Horse Creek LBA Tract as a maintenance tract for the existing mine, if a lease …


Mining Geology Of The Lower Elkhorn Coal, Stephen F. Greb, Gerald A. Weisenfluh Jan 2000

Mining Geology Of The Lower Elkhorn Coal, Stephen F. Greb, Gerald A. Weisenfluh

Map and Chart--KGS

The Lower Elkhorn (and its equivalents) is one of the leading producers of coal in the Eastern Kentucky Coal Field with 12 to 18 million short tons of annual production between 1974 and 1996, according to the Kentucky Department of Mines and Minerals. Stratigraphically, the coal occurs in the lower part of the Pikeville Formation of the Breathitt Group (Fig. 1), which was previously part of the Breathitt Formation (Chesnut, 1992). The coal occurs from 150 to 300 ft above the base of a thick coarsening-upward sequence containing the Betsie Shale and from 250 to 450 ft beneath the base …


Quality Characteristics Of The Lower Elkhorn Coal Bed In Eastern Kentucky, Cortland F. Eble Jan 2000

Quality Characteristics Of The Lower Elkhorn Coal Bed In Eastern Kentucky, Cortland F. Eble

Map and Chart--KGS

Thickness and quality data from the Kentucky Coal Resources Information System (KCRIS) are summarized in this chart for the Lower Elkhorn coal bed (and equivalents). Parameter averages and ranges of values are presented in the two tables, and average values are displayed graphically by county.


Total Coal Thickness Of The Fire Clay And Fire Clay Rider Coals In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, Stephen F. Greb, Jeffery A. Esterle Jan 2000

Total Coal Thickness Of The Fire Clay And Fire Clay Rider Coals In Eastern Kentucky, Ernest E. Thacker, Gerald A. Weisenfluh, Stephen F. Greb, Jeffery A. Esterle

Map and Chart--KGS

This map is one of a series that shows the regional characteristics of the Fire Clay coal zone. The maps were prepared as part of the U.S. Geological Survey's National Coal Assessment Program, which compiles regional maps and databases that provide a comprehensive assessment of the most important coal beds in the nation. Within the zone, the Fire Clay coal is the most economically important bed and is one of the leading producers in the state of Kentucky. It is known for a persistent flint-clay parting that is believed to be of volcanic origin. This map represents the total coal …


Coal Resources Of The Springfield Coal Bed In Western Kentucky, William M. Andrews Jr., Robert E. Andrews, John K. Hiett Jan 2000

Coal Resources Of The Springfield Coal Bed In Western Kentucky, William M. Andrews Jr., Robert E. Andrews, John K. Hiett

Map and Chart--KGS

Historically, the Springfield (Western Kentucky No. 9) coal bed has been the leading source of production in the Western Kentucky Coal Field. The Springfield coal is known for its lateral continuity in terms of both thickness and coal quality. It is estimated to have the largest original and remaining resource in the Western Kentucky Coal Field (Greb and others, 1992).


Quality Characteristics Of The Springfield Coal In Western Kentucky, Cortland F. Eble Jan 2000

Quality Characteristics Of The Springfield Coal In Western Kentucky, Cortland F. Eble

Map and Chart--KGS

Thickness and quality data from the Kentucky Coal Resources Information System (KCRIS) for the Springfield coal bed are summarized in this chart. Parameter averages and range of values are presented in the two tables, and average values are displayed graphically by county.