Minerals YearbookThe Bureau, 1973 - Mineral industries |
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Page 11
... completed development and evaluation of X - ray drill - hole probes . The battery - powered 30 - pound instruments are designed for logging boreholes 1.8 inches in diameter or larger . In most metal - mining operations , exploratory ...
... completed development and evaluation of X - ray drill - hole probes . The battery - powered 30 - pound instruments are designed for logging boreholes 1.8 inches in diameter or larger . In most metal - mining operations , exploratory ...
Page 12
... completed , and plans were formulated for construction of the plant . The pilot plant will be capable of process- ing 70 tons of raw coal per day into pipe- line - quality gas . The Hydrane Process was also developed in another approach ...
... completed , and plans were formulated for construction of the plant . The pilot plant will be capable of process- ing 70 tons of raw coal per day into pipe- line - quality gas . The Hydrane Process was also developed in another approach ...
Page 14
... completed in a series designed to deter- mine optimum in situ retorting parameters under closely controlled simulation condi- tions . Lean oil shale , 10.7 gallons per ton , obtained from the Uinta Basin , Utah , was successfully ...
... completed in a series designed to deter- mine optimum in situ retorting parameters under closely controlled simulation condi- tions . Lean oil shale , 10.7 gallons per ton , obtained from the Uinta Basin , Utah , was successfully ...
Page 15
... completed with a statistical analysis of electrical accidents and a discussion of the causes of such acci- dents . Studies are now being initiated to find alternate power systems that would prove safer than those now in use . Explosives ...
... completed with a statistical analysis of electrical accidents and a discussion of the causes of such acci- dents . Studies are now being initiated to find alternate power systems that would prove safer than those now in use . Explosives ...
Page 148
... completed in April 1972. The reduction plant was to use the local power grid until the new power became available . Revere Copper & Brass , Inc. , through its Aluminum subsidiary , Revere Building Products , Inc. , purchased U.S. ...
... completed in April 1972. The reduction plant was to use the local power grid until the new power became available . Revere Copper & Brass , Inc. , through its Aluminum subsidiary , Revere Building Products , Inc. , purchased U.S. ...
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add to totals alloys alumina aluminum antimony average avoid disclosing individual barite bauxite bituminous bituminous coal Bureau of Mines Canada carbon cement cent Chemical chromite clay coal coke Colorado company confidential data concentrates consumed copper Corp countries creased crude oil declined decreased disclosing individual company District domestic estimated exports feldspar ferroalloys ferrochromium fluorspar furnace gasoline Germany gold grade gypsum imports for consumption Includes increased independent rounding individual company confidential industry iron and steel Japan lead lignite long tons magnesium manganese material ment metal Mexico mica mill million barrels million cubic feet million tons mineral molybdenum natural gas liquids nickel nonmetal North Dakota Ohio operations ounces output oxide Pennsylvania percent petroleum plant pounds production refined refineries reported Republic scrap shipments smelter sold stocks Table tantalum Texas thousand short tons tion tons Value totals shown United Kingdom Utah Value thousands Withheld to avoid yearend zinc