 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-251949Vollansicht - Über dieses Buch
 | Elmer Davisson Patterson - 1963 - 94 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... | |
 | Geological Survey (U.S.) - 1955 - 430 Seiten
...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... | |
 | Paul Averitt - 1961 - 222 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... | |
 | United States. President's Materials Policy Commission - 1952 - 916 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... | |
 | United States. Congress. Senate. Committee on Interior and Insular Affairs - 1953 - 1548 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.... | |
 | Geological Survey (U.S.) - 1958 - 282 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 two miles from the outcrop or from points... | |
 | Robert R. Nathan Associates - 1963 - 922 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 about 3.0 kilometres from the outcrop or... | |
 | United States. Federal Power Commission - 1968 - 394 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... | |
 | R. D. Singh - 2005 - 730 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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