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Books Bücher 1 - 9 von 9 in Inferred coal is coal for which quantitative estimates are based largely on broad...
" Inferred coal is coal for which quantitative estimates are based largely on broad knowledge of the geologic character of the bed, or region, and for which there are few, if any, measurements. The estimates are based on an assumed continuity for which... "
Geological Survey Bulletin - Seite B-25
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Coal Resources of Beaver County, Pennsylvania, Ausgabe 1143

Elmer Davisson Patterson - 1963 - 33 Seiten
...inches thick. Thickness of overburden. — All the minable coal in Lawrence County is less than 1 ,000 feet below the surface. Because most of the mining...points of observed thickness. DISTINCTION BETWEEN ORIGINAL, REMAINING, AND RECOVERABLE RESERVES As used in this report, original reserves are the total...
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Geological Survey Circular, Ausgaben 361-370

Geological Survey (U.S.) - 1955
...knowledge of the character of the bed or region and for which there are few, if any, measurements. The estimates are based on an assumed continuity for...there is good geologic evidence. In general, inferred coal lies more than 2 miles from points of observed thickness. The many data on the Pittsburgh coal...
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Coal Reserves of the United States: A Progress Report ..., Ausgaben 1135-1136

Paul Averitt - 1961 - 116 Seiten
...geologic character of the bed or region and for which few measurements of bed thickness are available. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than 2 miles from the outcrop or from points...
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Fuel Reserves of the United States: A Statement Prepared at the Request of ...

Geological Survey (U.S.), United States. Congress. Senate. Committee on Interior and Insular Affairs - 1951 - 49 Seiten
...of the geologic character of the bed, or region, and for which there are few, if any, measurements. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than 2 miles from the outcrop. Weight of coal....
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Resources for Freedom: A Report to the President, Teile 1-5

United States. President's Materials Policy Commission - 1952 - 407 Seiten
...knowledge of the geologic character of the bed or region and for which they are few, if any, measurements. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than 2 miles from the outcrop. At the present...
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Stockpile and Accessibility of Strategic and Critical Materials to the ...

United States. Congress. Senate. Committee on Interior and Insular Affairs - 1953
...of the geologic character of the bed, or region, and for which there are few, if any, measurements. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than 2 miles from the outcrop. Weight of coal....
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The Foreign Market Potential for United States Coal, Band 1

Robert R. Nathan Associates - 1963
...geologic character of the bed or region and for which few measurements of bed thickness are available. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than about 3.0 kilometres from the outcrop or...
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Air Pollution and the Regulated Electric Power and Natural Gas Industries ...

United States. Federal Power Commission - 1968 - 366 Seiten
...geologic character of the bed or region and for which few measurements of bed thickness are available. The estimates are based on an assumed continuity for which there is geologic evidence. In general, inferred coal lies more than 2 miles from the outcrop or from points...
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Principles and Practices of Modern Coal Mining

R. D. Singh - 2005 - 696 Seiten
...on broad knowledge of the geological character of the bed, but for which there are no measurements. The estimates are based on an assumed continuity for which there is geological evidence, and more than 1 ,000 to 2,000 m in from the outcrop. 3.11.2 Reserve and Risk The...
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