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Economic and Exploration Significance of Red Sea Metalliferous Brine DepositsBy W. C. Shanks
Seventeen deeps, which contain hot or cold brines and/or metalliferous sediments, have been discovered in the axial rift zone of the Red Sea. Metalliferous activity results from the unique geological
Jan 1, 1983
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Refractory Materials.*By T. Egleston
ALTHOUGH the success of metallurgical operations depends so largely on the possibility of finding proper refractory materials, which enter so prominently into the cost of their operations, it can hard
Jan 1, 1876
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Mining Instrumentation Goes AutomaticBy T. O. Meyer, J. R. McVey
A 10-channel automatic data acquisition system has been assembled for underground use with the Bureau's "Tunnel Stress Relaxation Gage". The automated system was needed to improve data collection
Jan 8, 1973
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Analyses of Some Tellurium MineralsBy E. P. Jennings
(Read at the Amenia Meeting, October, 1877.) THE abundance and value of the tellurium minerals of Colorado is well known, but, as yet, few analyses have been made of them, and I offer these as a sm
Jan 1, 1878
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Papers - New York Meeting – February, 1929 - A Metallographic Study of Tungsten Carbide Alloys (With Discussion)By J. L. Gregg, C. W. Kuttner
ReceNtly there has been considerable interest in the production and use of extra hard alloys composed primarily of tungsten and carbon. Dr. Hoyt's recent paper1 gives a good description of these
Jan 1, 1929
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Papers - New York Meeting – February, 1929 - A Metallographic Study of Tungsten Carbide Alloys (With Discussion)By C. W. Kuttner, J. L. Gregg
ReceNtly there has been considerable interest in the production and use of extra hard alloys composed primarily of tungsten and carbon. Dr. Hoyt's recent paper1 gives a good description of these
Jan 1, 1929
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A Reference Datum for Magnetometer SurveysBy F. C. Farnham
THERE has been very little, if any, uniformity in the reference datum used for magnetometer surveys. It has been the practice to choose a base station at which the magnetic field is assumed to be norm
Jan 1, 1939
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Modern Mining Methods-- Longwall, Shortwall (dcb68740-95a4-4eda-84c1-0f718876c42b)By Kenneth P. Katen
INTRODUCTION Though the use of continuous mining machines consolidated the operations of cutting, drilling, blasting, and loading in one machine that would theoretically provide uninterrupted prod
Jan 1, 1981
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Modern Mining Methods-- Longwall, ShortwallBy Kenneth P. Katen
INTRODUCTION Though the use of continuous mining machines consolidated the operations of cutting, drilling, blasting, and loading in one machine that would theoretically provide uninterrupted prod
Jan 1, 1981
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Chicago Paper - General and Special Observations Concerning Ore-Dressing (See Discussion, p. 699)By O. Bilharz
The rules laid down by Peter von Rittinger in his classic Lehrbuch der Aufbereitungskunde (Berlin, 1867, p. 513) concerning the designing of dressing-works still possess authority for such works and t
Jan 1, 1894
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Subsidence Above Abandoned Coal MinesBy Richard E. Gray, Robert W. Bruhn
INTRODUCTION Underground coal mining has been practiced in the United States for over 200 years. Much early mining was not as efficient as today and unrecovered coal pillars, often of variable siz
Jan 1, 1982
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Groveland Plant Features Huge Pelletizing MachineThe pellet plant, built by Dravo Corp, in Groveland, Mich., for the Hanna Mining Co., is now in full operation. Although using jasper, a type of iron ore with low iron content (approximately 28% Fe),
Jan 4, 1964
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Possible Binders For Pelletizing Of Magnetic Taconite Concentrates (801228ef-1932-412e-8bb6-57bc8e57c7cd)By J. A. Clum, R. W. Heins, T. D. Tiemann
The use of Na-montmorillonite clay hinders (Western Bentonite) in the pelletizing of iron ore concentrates is well established as is the idea that alternative binders must be found. 1-6 This note summ
Jan 1, 1979
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New York Paper - Illumination of Mines (with Discussion)By Robert P. Burrows
In preparing this paper the object has been to set forth facts relating to illumination problems, which, judging from the results realized in the iron and steel and other industries somewhat similar t
Jan 1, 1916
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Mineral Slurry Transport - An UpdateBy Noel W. Kirshenbaum, George A. Pouska, James M. Link
Literally millions of words have been written on the subject of mineral slurry pipelining. The sheer bulk of literature on the subject should be enough to convince the interested observer that the met
Jan 1, 1980
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Classification Of Ore DepositsBy G. F. Loughlin, C. H. Behre
THE DEVELOPMENT OF CLASSIFICATION WHAT is the use of a classification of mineral deposits? From the days of Agricola, the founder of the science of ore deposits, successive authors on the subject h
Jan 1, 1933
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Low-Sulfur Coals Of KentuckyBy Willard Jillson
WITHIN the last ten years Kentucky has become celebrated for its low-sulfur bituminous coals. Prior to this time, many investigators had discovered the abundance of this coal but the fact was unknown
Jan 9, 1919
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Static, Dynamic .And Notch Toughness ? Discussion (33ce9820-d9df-48aa-8737-a0482b352b93)J. E. JOHNSON, JR., New York.-It seems to me that it ought to be somebody's job to tie these notch tests with the reversed-stress tests, because the thing that causes failures in structures, in a
Jan 5, 1919
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Book VIIIBy Herbert Clark Hoover, Lou Henry Hoover
QUESTIONS of assaying were explained in the last Book, and I have now come to a greater task, that is, to the description of how we extract the metals. First of all I will explain the method of prepar
Jan 1, 1950
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Jafet Lindeberg – An Interview by Henry CarlisleQ: This is December 1960 and Jafet Lindeberg and myself are sitting around the tape recorder. Jafet, who discovered the gold in Nome, Alaska, in 1898, is going to tell the story of the discovery and o
Jan 7, 1964