Minerals YearbookThe Bureau, 1973 - Mineral industries |
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... addition , it includes a general review chapter on these industries , a statistical summary , and chapters on employment and injuries and on technologic trends . Volume III , Area Reports : International , presents the latest available ...
... addition , it includes a general review chapter on these industries , a statistical summary , and chapters on employment and injuries and on technologic trends . Volume III , Area Reports : International , presents the latest available ...
Page 11
... addition of a waste acid to alkaline cyanide wastes in a venti- lated mixing tank . The precipitated valu- able metals such as silver , nickel , and cop- per were separated and recovered by addi- tional processing . The Bureau developed ...
... addition of a waste acid to alkaline cyanide wastes in a venti- lated mixing tank . The precipitated valu- able metals such as silver , nickel , and cop- per were separated and recovered by addi- tional processing . The Bureau developed ...
Page 15
... natural gas samples . In addition , the analyses are available as a magnetic tape for use with data processing equipment . The most significant governmental action during 1971 was the NEP REVIEW OF THE MINERAL INDUSTRIES 15.
... natural gas samples . In addition , the analyses are available as a magnetic tape for use with data processing equipment . The most significant governmental action during 1971 was the NEP REVIEW OF THE MINERAL INDUSTRIES 15.
Page 57
... addition , disasters such as those at the Sunshine Mine in Idaho and along Buffalo Creek in West Virginia vividly illustrate the need for con- stant reexamination of mining technology . Such events attract worldwide attention and in the ...
... addition , disasters such as those at the Sunshine Mine in Idaho and along Buffalo Creek in West Virginia vividly illustrate the need for con- stant reexamination of mining technology . Such events attract worldwide attention and in the ...
Page 58
... addition , there were 109 pumping , well , or pond operations . Excluding clay , sand and gravel , and stone mines , metal and nonmetal mines : ( table 6 ) reporting production totaled 1,299 , 61 percent of which were metal mines ...
... addition , there were 109 pumping , well , or pond operations . Excluding clay , sand and gravel , and stone mines , metal and nonmetal mines : ( table 6 ) reporting production totaled 1,299 , 61 percent of which were metal mines ...
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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