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Full-Text Articles in Physical Sciences and Mathematics
Kentucky's Coal Industry: Historical Trends And Future Opportunities, Gerald A. Weisenfluh, James C. Cobb, John C. Ferm, Carol L. Ruthven
Kentucky's Coal Industry: Historical Trends And Future Opportunities, Gerald A. Weisenfluh, James C. Cobb, John C. Ferm, Carol L. Ruthven
Information Circular--KGS
Coal has been produced in Kentucky since the late 18th century. In the early years, all mining was by underground methods, but surface mining became the dominant method during and after World War II. In recent years, surface-mine production in both fields has decreased while underground mining has increased.
In the last half of this century, the traditional steam coal market for locomotives has virtually disappeared, leaving electric power generation and coking coal for the steel industry as the principal markets. More than half of all coal produced in the State has been produced in the last 25 years. Whether …
Low-Silica And High-Calcium Stone In The Newman Limestone (Mississippian) On Pine Mountain, Letcher County, Southeastern Kentucky, Garland R. Dever Jr., Thomas L. Robl, Jack R. Moody, Frank H. Walker, George W. Ellsworth Jr., Lance S. Barron
Low-Silica And High-Calcium Stone In The Newman Limestone (Mississippian) On Pine Mountain, Letcher County, Southeastern Kentucky, Garland R. Dever Jr., Thomas L. Robl, Jack R. Moody, Frank H. Walker, George W. Ellsworth Jr., Lance S. Barron
Information Circular--KGS
The coal industry of Kentucky is an important market for limestone. Coal producers use limestone as rock dust for explosion abatement in underground coal mines and as a neutralizing agent in surface-mine reclamation and acid-drainage control. Haulage-road construction and maintenance require crushed stone.
Coal-bearing rocks of Pennsylvanian age in the Eastern Kentucky Coal Field generally do not contain limestones that are sufficiently thick to quarry or mine economically, but in the southeastern part of the coal field, fault movement has brought the Newman Limestone to the surface along Pine Mountain. The Newman was sampled at three sites in Letcher County …
Low-Silica And High-Calcium Stone In The Newman Limestone (Mississippian) On Pine Mountain, Harlan County, Southeastern Kentucky, Garland R. Dever Jr., Jack R. Moody, Thomas L. Robl, Lance S. Barron
Low-Silica And High-Calcium Stone In The Newman Limestone (Mississippian) On Pine Mountain, Harlan County, Southeastern Kentucky, Garland R. Dever Jr., Jack R. Moody, Thomas L. Robl, Lance S. Barron
Information Circular--KGS
The coal industry of Kentucky is an important market for limestone. Coal producers use limestone as rock dust for explosion abatement in underground coal mines and as a neutralizing agent in surface-mine reclamation and acid-drainage control. Crushed stone is also used for constructing and maintaining haulage roads.
In the Eastern Kentucky Coal Field, the coal-bearing rocks of Pennsylvanian age generally do not contain limestones that are thick enough to quarry or mine economically. But movement on the Pine Mountain overthrust fault has brought the Newman Limestone (Mississippian) to the surface along Pine Mountain in the southeastern part of the coal …