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Showing: 1 to 10 of 5400 matches for "ECONOMIC IMPORTANCE OF MINERALS"  Page   1   2   3   4   5   6   7   8   9  next
TITLE Papres - Mining Geology - Bedding-plane Faults and Their Economic Importance 
SUMMARY ... Illustrations of Economic Importance.-At Leadville, bedding-plane movements of this
type are ... the limestone has been partly replaced by clayey minerals or the ...
AUTHOR Behre, Charles M., Jr
PUBLISHED 1937
TITLE Cut-and-Fill Stoping as Practiced at Outokumpu Oy 
SUMMARY ... In addition there are nickel and cobalt minerals such as cubanite and
cobalt-pentlandite, which have been of economic importance. ...
AUTHOR Matikainen, Raimo ; Särkkä, Pekka
PUBLISHED 1982
TITLE Economic factors of industrial minerals production 
SUMMARY ... changing demand, technology, and economic pressures in ... decreas- ing order of importance,
the four ... mater- ials, chemical industry minerals, fertilizer minerals ...
AUTHOR Gallagher, A. E. J. ; Kibler, H. S. ; Sebesta, J. J.
PUBLISHED 1987
TITLE Papers - Gold and Silver Milling and Cyaniding - Ore Treatment at Beattie Gold Mines Limited 
SUMMARY ... view, has been prospected for over 20 years, but no discoveries of economic importance
were made ... 2. The sulfide minerals are finely disseminated in the gangue. ...
AUTHOR Hubler, W.G. ; Martin, F.J.
PUBLISHED 1935
TITLE Arizona Paper - Iron Pyrites Deposits in Southern Ontario, Canada 
SUMMARY ... talc and iron pyrites, have proved to be of considerable economic importance. From
time to time, during the last 50 years, the following ! minerals and rocks ...
AUTHOR Hopkins, P. E.
PUBLISHED 1917
TITLE Economic Impact Of Treatment Of Residijes And Effluents On Investment Decisions 
SUMMARY ... Exploitation of minerals without any disturbance of the earth is essentially ... Of all
the base metals of economic importance, copper dominates in tonnages of ...
AUTHOR Agarwal, J.C.
PUBLISHED 1992
TITLE New York Paper - Petrographic Notes on the Ore Deposits of Jerome, Arizona 
SUMMARY ... copper-mining district of Jerome, Ariz., is of such economic importance that the ...
the feldspars to epidote, and changed the ferro-magnesian minerals to chlorite ...
AUTHOR Rice, Marion
PUBLISHED 1920
TITLE San Francisco Paper - The Geology of the Tonopah Mining-District 
SUMMARY ... the matter of interpretation assumes supreme economic importance; for, while ... therefore,
a matter of' extreme importance to de ... tion of the ore-minerals tlali the ...
AUTHOR Locke, Augustus
PUBLISHED 1913
TITLE Butte Paper - The Use of the Microscope in Mining Engineering (with Discussion) 
SUMMARY ... Most minerals are known to be capable of formation under many different agencies ...
under deep-seated condi- tions, are rarely of economic importance, and, where ...
AUTHOR Apgar, F. W.
PUBLISHED 1914
TITLE Papers - Non- metallic Minerals - The Barite Industry in Missouri (With Discussion) 
SUMMARY ... 35 ft. It has no economic importance as a barite producer. The Roubidoux ... and
sometimes other minerals such as calcite or galena. These are ...
AUTHOR Weigal, W. M.
PUBLISHED 1929
Showing: 1 to 10 of 5400 matches for "ECONOMIC IMPORTANCE OF MINERALS"  Page   1   2   3   4   5   6   7   8   9  next

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