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Articles 151 - 180 of 480
Full-Text Articles in Other Engineering
Electrowinning Versus Electrorefining Of Blister Copper, Frank J. Vorell
Electrowinning Versus Electrorefining Of Blister Copper, Frank J. Vorell
Bachelors Theses and Reports, 1928 - 1970
In the following sections of this report, I will discuss as fully as possible both the theoretical and practical aspects of the roasting, leaching, and electrowinning steps, as well as the economic considerations of the process. The results of my laboratory work will, of course, be integrated to the process.
Ferromagnetic Alloys In The System Cu-Mn-Zn, W. Michael Yim
Ferromagnetic Alloys In The System Cu-Mn-Zn, W. Michael Yim
Bachelors Theses and Reports, 1928 - 1970
The purpose of this investigation is to determine whether ferromagnetic alloys exist in the ternary system Cu-Mn-Zn analogous to the other Heusler alloys. The work in this thesis is a preliminary investigation on these alloys using a common metallographic research technique and augmented with X-ray methods.
A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan
A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan
Bachelors Theses and Reports, 1928 - 1970
Measurements of reflectivity of opaque ore minerals can be made with the common photographic light meter and a standard reflecting microscope, both of which are available to most Geology laboratories. During the course of the investigation, approximately 30 minerals were examined, of which 10 were duplicates. Comparable results, for the most part within 3% of previously determined valued, were obtained.
Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr.
Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr.
Bachelors Theses and Reports, 1928 - 1970
Ever since the introduction of metal products into our civilization, especially those of iron and steel, man has been confronted with the problems of corrosion prevention. As the agents which are conducive to corrosion cannot be completely eliminated, it has been necessary for man to develop processes and materials that will retard the degeneration of the metals that are so important to our industrialized world.
Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra
Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra
Bachelors Theses and Reports, 1928 - 1970
The role of liquid metals in industry is rapidly becoming of increasing importance. The physical and chemical tendencies of metals in the liquid condition must be ascertained before a metal in this form can be put to practical usage. In very many stages of mineral processing and recovery, in molten-metal baths for temperature control on heat treating, and in several industries where heat transfer is an important aspect, metals may be at one time or another in a liquid condition.
Production Of Sponge Iron From Pyrites, Robert W. Leeson
Production Of Sponge Iron From Pyrites, Robert W. Leeson
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to record and discuss the results of tests conducted, at the Montana School of Mines, in which pyrite concentrates from the Concentrator Department of the Anaconda Reduction Works, Anaconda, Montana, were subjected to the reducing effects of natural gas at elevated temperatures in an endeavor to produce iron in the metallic form.
A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce
A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce
Bachelors Theses and Reports, 1928 - 1970
Any investigation of the many gold silver producing districts of Montana will necessarily include the name Zosell. The Zosell Mining District, often referred to as the Emery District, was never a major producer in the state; however, its location, history, type of deposit, and character of ore, has drawn the interest of many prominent investigators of the mineral industry.
Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta
Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta
Bachelors Theses and Reports, 1928 - 1970
The exact upper boundary of the Devonian of Montana has long been a controversy, as is true of the Devonian-Mississippian contact in many other localities. In an effort to delimit the upper Devonian, various paleontologic studies have been made, more especially in the southwestern part of the state.
Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson
Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson
Bachelors Theses and Reports, 1928 - 1970
The possibility of defining the roots of one of the volcanic sources of the Upper Cretaceous Livingston formation led to the detailed mapping upon an enlarged aerial photograph of a complexly intruded, folded, and faulted area about 10 miles northeast of Whitehall, Montana.
A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll
A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll
Bachelors Theses and Reports, 1928 - 1970
The oldest system in which identifiable invertebrate fossils have been found is the Cambrian. The basal Cambrian formation found in Montana is the Flathead sandstone and quartzite of Middle Cambrian age. No fossils have been reported from this formation. Above the Flathead is the Wolsey formation composed of green fissile shale with sandy and limy members. This fossiliferous member of the Middle Cambrian is known in Northwestern Montana as Gordon, and in the Philipsburg quadrangle as the Silver Hill formation.
Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker
Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker
Bachelors Theses and Reports, 1928 - 1970
Except for the early work of Boutwell and Irving, little has been published on the geology of the Park City mining district. For this reason and because of the availability of a selected suite of ores from the Silver King mine of this area, this writer chose the mineralogy of the Silver King mine as a senior thesis for the department of Geology of the Montana School of Mines.
The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner
The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner
Bachelors Theses and Reports, 1928 - 1970
The construction of the apparatus was performed entirely in the machine shops at the Montana School of Mines. The materials utilized in the construction were obtained through the courtesy of many sources: the A. C. M. Co., the Montana Power Co., and the Western Iron Works.
Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry
Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry
Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry
Bachelors Theses and Reports, 1928 - 1970
The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.
Studies Of Antimony Occurrence With Special Relation To Its Effective Extraction, San Jose Antimony Mines, Wadley, San Luis Potosi, Mexico, J. C. Archibald Jr.
Studies Of Antimony Occurrence With Special Relation To Its Effective Extraction, San Jose Antimony Mines, Wadley, San Luis Potosi, Mexico, J. C. Archibald Jr.
Bachelors Theses and Reports, 1928 - 1970
The mines at San Jose which are within the Wadley unit are the largest antimony mines in Mexico. These mines produce more than half of the antimony produced by the company from its mining operations. Since the time of the author's connection with the company, a number of changes have been made in planning of development work, handling of labor, methods of mine development, cost improvement, and other problems inherent in the successful guidance of an operation.
Czarina Mine, Butte, Montana, Prodyot K. Das
Czarina Mine, Butte, Montana, Prodyot K. Das
Bachelors Theses and Reports, 1928 - 1970
The Czarina mine operated for a short time during the last Great War, lies in the southwestern corner of the Butte mining district of Montana. This area was worked during the extensive silver mining in Butte during the 1890's, and was prospected from time to time in later years. The orebody of the mine consists of fissure fillings of manganese mineral oxidized to a certain depth, in a fracture zone of the Boulder Batholith.
Mineralization Of The Bonanza Mine, H. M. Callaway
Mineralization Of The Bonanza Mine, H. M. Callaway
Bachelors Theses and Reports, 1928 - 1970
The Bonanza mine of the Emery mining district in Powell County is on the largest veins in the area, and is developed to a depth of 680 feet by an incline shaft following the dip of the structure. Sulfide ores carrying gold and silver values are mined throughout the area which is easily accessible by road from Deerlodge, Montana, ten miles west of the district.
Montana Talc; Problems In Physical Properties, E. C. Armstrong
Montana Talc; Problems In Physical Properties, E. C. Armstrong
Bachelors Theses and Reports, 1928 - 1970
General information on talc, including foreign and United States occurrences, origin, and uses is covered. Montana deposits are discussed in greater detail as to location, geology, mineralogy, and mining. Studies of talc by petrographic and x-ray methods and an experiment to determine the porosity are described and discussed.
Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson
Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson
Bachelors Theses and Reports, 1928 - 1970
Although the majority of geologic structures in Montana have been tested in the search for petroleum, only a few have been found to contain commercial quantities of either oil or gas, and with each successive dry hole, producers are becoming more and more wary of investing capital in new wells located on structural features alone. It is apparent that if new oil and gas fields are to be found in Montana, exploration must be done on the basis of something other than structure, or combined with structure.
Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick
Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick
Bachelors Theses and Reports, 1928 - 1970
This paper, a study of the fauna of the Pilgrim formation at South Boulder Creek in southwestern Montana, represents a laboratory study of the fossil specimens collected by Dr. Alvin Hanson during the summer of 1949. The scope of investigation includes identification and classification of the faunas, their stratigraphic relationship and zonal subdivisions.
Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds
Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds
Bachelors Theses and Reports, 1928 - 1970
One of the many secrets which planet Earth has jealously kept from its inhabitants is the microscopic fossil form known as the foraminifer. It hides in common shale, awaiting the patient and painstaking searcher. In furthering the study of the foraminifera of the Colorado group of formations in Northern Montana, the United States Geological Survey has collected several suites of shale samples from the Sunburst Dome, five to ten miles south of the Canadian border and twenty-five miles north of the city of Shelby, Montana.
A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel
A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel
Bachelors Theses and Reports, 1928 - 1970
If, in a system at a given temperature, there should occur a decrease in free energy and this decrease does not take place, then the resulting condition of the system is termed supercooling. A common example of the phenomenon is found in the liquid-to-solid transition of many substances, when the temperature of the liquid may be lowered below its freezing point without solidification. Similar phenomenon occurs in the gas-to- liquid, gas-to-solid, and polymorphic transformations.
Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre
Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre
Bachelors Theses and Reports, 1928 - 1970
In the past 75 years, the scenic area about the headwaters of the great Missouri River has attracted the attention of many leading stratigraphers and paleontologists; for in this area bountiful outcrops of Paleozoic fossil horizons are available for study and correlation.
Mottling In The Meagher Limestone, Ronald J. White
Mottling In The Meagher Limestone, Ronald J. White
Bachelors Theses and Reports, 1928 - 1970
The middle Cambrian Meagher limestone of southwest Montana is characterized by mottled members that are finely crystalline in the tan part and microcrystalline in the dark matrix. As seen in the literature, similar mottled limestones are thought to be an arrested stage in the dolomitization, or alteration of limestones.
A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young
A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young
Bachelors Theses and Reports, 1928 - 1970
The batholith is dated as Paleocene or early Eocene. The rocks of the batholith in this area are classified as ranging from quartz-granodiorite to granodiorite. Variation in mineral content causes a chance in color tone from light to dark gray. swarms of inclusions occur in the igneous rock near the contact.
Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson
Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson
Bachelors Theses and Reports, 1928 - 1970
Shale is known to be a source-bed for oil, and the Colorado shale which is over 2000 feet thick in places may well be the source for the oil which is now accumulated in the included or closely associated sandstones. A thorough study of the fossil content may not only be helpful in correlation of Cretaceous sediments, but it likewise may be the starting point for studies -which could eventually lead to the discovery of unknown mineral deposits.
A Mineral Dressing Study Of The Benefication Of Philipsburg Manganese Carbonate Ore, Frank M. Antonioli
A Mineral Dressing Study Of The Benefication Of Philipsburg Manganese Carbonate Ore, Frank M. Antonioli
Bachelors Theses and Reports, 1928 - 1970
The beneficiation of rhodochrosite ore to the extent that it is suitable for nodulizing and subsequent use in the steel industry is intriguing. Such ores from certain mines is relatively easy to beneficiate, but the rhodo-chrosite ore from several deposits of the Philipsburg district has never been successfully up-graded by any of the several known beneficiating methods.
The Isothermal Transformation Curve For S.A.E. 6150, Charles Arentzen
The Isothermal Transformation Curve For S.A.E. 6150, Charles Arentzen
Bachelors Theses and Reports, 1928 - 1970
More than 3000 years ago, men began quenching and tempering tools to improve their physical properties. The ancient people found that iron was easier to shape and form in a heated condition. Charcoal was used as the fuel, and when the shaping process was completed, the smiths cooled the piece in the most obvious way, quenching in water. Quite unintentionally, these people stumbled on the process for improving the properties of iron, and the art of blacksmithing began.