 | Harry E. Hough - Industrial procurement - 1996 - 226 pages
...Commodity Summaries, 1994, United States Department of the Interior, Bureau of Mines. 6 Reserves are the part of the reserve base which could be economically...extracted or produced at the time of determination. ? As constituted before December 1991. 8 US Industrial Outlook, 1994, US Department of Commerce, International... | |
 | Peter D. Warwick - Technology & Engineering - 2005 - 116 pages
...feasible." This should not be confused with coal reserves that are "Virgin and (or) accessed parts of a coal reserve base which could be economically extracted or produced at the time of determination considering environmental, legal, and technologic constraints" (Wood et al., 1983). Typically, coal... | |
 | United States. Bureau of Mines - Mineral industries - 1988 - 408 pages
...in-place demonstrated (measured plus indicated) resource from which reserves are estimated. Reserves- -That part of the reserve base which could be economically...extracted or produced at the time of determination. TABLE 1. — Average concentrations for metals of economic interest in manganese crusts and nodules... | |
 | United States. Bureau of Mines - Mineral industries - 1988 - 400 pages
...in-place demonstrated (measured plus indicated) resource from which reserves are estimated. Reserves-Thai part of the reserve base which could be economically...extracted or produced at the time of determination. TABLE 1. — Average concentrations for metals of economic interest in manganese crusts and nodules... | |
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Reserves That part of the reserve base which could be economically extracted or produced at the time of determination. The term reserves need not signify that extraction facilities are in place and operative. Reserves include only recoverable materials;... 