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Articles 1531 - 1560 of 1626
Full-Text Articles in Environmental Engineering
A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey
A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey
Bachelors Theses and Reports, 1928 - 1970
Considerable work has been done investigating the freezing point curves of fused salts, but little has been written describing the appearance of their eutectic structures when observed under the microscope.
Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe
Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe
Bachelors Theses and Reports, 1928 - 1970
The primary purpose of the trip was to acquaint the students with some of the problems that occur in the field, and also how to make geologic maps of sections, outcrops, faults, and other geologic features of the earths surface.
The Geology Of The Limespur-Sappington Area, Frank W. Archibald
The Geology Of The Limespur-Sappington Area, Frank W. Archibald
Bachelors Theses and Reports, 1928 - 1970
The area to be surveyed was divided up into sections add each crew of three or four members was assigned one of these sections. The first two days were spent in studying and mapping the geologic section in the South Boulder Canyon where we obtained practice in alidade surveying, brunton, pacing, and auto traverse.
The Quantitve Measurement Of Amalgamation, Robert A. Mcguire
The Quantitve Measurement Of Amalgamation, Robert A. Mcguire
Bachelors Theses and Reports, 1928 - 1970
Mercury has been known since ancient times. In fact, one mine, the "Almaden" in Spain, has been worked continuously since Roman times. It has been used during all this time for the recovery of free gold from gold concentrates, and from black sand and galena in concentrates from placer work.
Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr.
Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr.
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to identify and describe the fauna, correlate it with that of the Upper Devonian of other states, to note the geographic distribution, lithologic variations of outcrops, and to compare measured cross sections.
Montana Oil Fields, Conrad F. Lundgren
Montana Oil Fields, Conrad F. Lundgren
Bachelors Theses and Reports, 1928 - 1970
Since the discovery of oil in Montana in1916, the petroleum industry has advanced to a point where over 5,000,000 barrels of oil worthover $6,500,000 has been produced in each of the three past years (1936, 1937, and 1938).
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
Bachelors Theses and Reports, 1928 - 1970
The successful application of the phenomenon of precipitation hardening to aluminum and copper has indicated the possibility of hardening all metals in the same way. The phenomenon of age hardening was discoveredin 1911, and since that time much research has been carried on in all parts of the world on various alloy systems.
Structure Of Eutectics, Dilip K. Das
Structure Of Eutectics, Dilip K. Das
Bachelors Theses and Reports, 1928 - 1970
The present paper is a result of work done on the study of structures of eutectics of a certain eutectic-forming binary systems. In this research work no systems with intermetallic compounds have been studied.
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Bachelors Theses and Reports, 1928 - 1970
In metallurgical practice today some of the relatively rare metal Indium is recovered as a by-product from the ores of other metals. Indium is a soft, silvery—white metal belonging to the third group of the periodic classification. It is situated just above tin in the electrochemical series.
A Study Of Solders, John D. Prater
A Study Of Solders, John D. Prater
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to furnish a qualitative method of comparing the degree of wetting of various solders upon different plate metals when several fluxes are used.
The Pre-Jurassic Surface Of Montana., G. Fay
The Pre-Jurassic Surface Of Montana., G. Fay
Bachelors Theses and Reports, 1928 - 1970
It has long been known that, prior to the deposition of Jurassic sediments, Montana was subjected to an intensive period of erosion. Mention of this may be found in numerous reports, especially those dealing with western Montana.
Electrolytic Manganese, George T. Derana
Electrolytic Manganese, George T. Derana
Bachelors Theses and Reports, 1928 - 1970
The production of metallic manganese by electrolysis is of potential value for the recovery of this strategic metal from domestic deposits. These deposits are largely unsuitable for the production of ferromanganese, but they are amenable to low-cost leaching processes.
Igneous Rocks Of The Jardine And Crevasse Mountain Mining Districts., Ray E. Gilbert
Igneous Rocks Of The Jardine And Crevasse Mountain Mining Districts., Ray E. Gilbert
Bachelors Theses and Reports, 1928 - 1970
It is surprising to learn that so large a variety of igneous rocks is present in the Jardine and Crevasse Mountain mining districts, a region that is generally thought of as consisting principally of schists.
The Age Hardening Of Copper With Manganese Silicide., Gordon A. Davis
The Age Hardening Of Copper With Manganese Silicide., Gordon A. Davis
Bachelors Theses and Reports, 1928 - 1970
The increase in hardness is attributed to the manganese silicide being precipitated from solid solution and deposited between crystal planes. The subsequent softening which occurs on prolonging the period of reheating is believed to be due to an agglomeration of the dispersed hardening agent.
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Bachelors Theses and Reports, 1928 - 1970
The Golden Sunlight Mine is in the northern part of the Cardwell mining district on the eastern slope of a small range that rises by a series of benches to an elevation of 7,200 at a point five miles east of the town of Whitehall in Jefferson County.
Powder Metallurgy, Cecil R. Waldron
Powder Metallurgy, Cecil R. Waldron
Bachelors Theses and Reports, 1928 - 1970
The metal powders may be produced in a number of different ways. In metals where the intercrystalline material is brittle enough, they may be ground in a ball mill or eddy mill. The fineness of such a powder is more or less controlled by the grain size of the original metal.
Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene
Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene
Bachelors Theses and Reports, 1928 - 1970
Work was first done on a known section, the south Boulder Section, in order to familiarize the student with the formations. Most of the area was mapped by plane table and telescopic alidade, general features being surveyed by automobile traverse and a pacing traverse.
A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready
A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready
Bachelors Theses and Reports, 1928 - 1970
This paper is a report of a geological survey made of an area of approximately fifty square miles lying Northeast of Whitehall, Montana, in the region of the Golden Sunlight Mine. The survey was made by a field party consisting of twenty-three members of the senior class of the Montana School of Mines.
South Moccasin Kaolin Deposit, Walter Everly
South Moccasin Kaolin Deposit, Walter Everly
Bachelors Theses and Reports, 1928 - 1970
Kaolin has never been considered an important economic mineral in Montana. Deposits of Kaolin in this state are not described in the literature and apparently very few deposits have been found.
Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee
Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee
Bachelors Theses and Reports, 1928 - 1970
In the vicinity of Limespur, Montana, a siding along the Northern Pacific Railroad near Whitehall, Montana, occurs a characteristic type of arkose where in many small red mineral grains are distributed throughout the rock mass. It is in this respect that this arkose differs from other arkoses in the surrounding region.
A Study On The Origin Of Banded Agate, James E. Driscoll
A Study On The Origin Of Banded Agate, James E. Driscoll
Bachelors Theses and Reports, 1928 - 1970
Agate in any of its varieties presents numerous problems in regard to its origin. Many types have been described and their beauty elaborated upon, but little has been written concerning their formation and the problems involved. The genesis of agate implicates an amazing complexity of physical and colloidal chemistry, as well as, various principles of geology.
Underground Stratigraphy Of Montana, Virgil R. Chamberlain
Underground Stratigraphy Of Montana, Virgil R. Chamberlain
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to study the subsurface stratigraphy of the state of Montana from information acquired from well logs, composite logs, and measured sections. Underground stratigraphy is important for the intelligent prospecting for oil, gas, or water. A knowledge of the strata beneath us can be gathered only by measurements of numerous outcrops or by deep drilling with careful sampling or logging of the formations passed through.
The Jefferson Canyon Gypsum Deposit., Arthur Talpt
The Jefferson Canyon Gypsum Deposit., Arthur Talpt
Bachelors Theses and Reports, 1928 - 1970
Gypsum deposits are widespread geographically and are in many geologic formations. Ordinarily their character and origin, for the most part sedimentary, are not difficult to ascertain. Near Lewis and Clark Caverns, east of Whitehall, Montana, occurs a deposit of gypsum unique in many respects.
Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson
Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson
Bachelors Theses and Reports, 1928 - 1970
The alloy system selected for study was the binary alloy of platinum and silver. An examination of the various silver alloy diagrams revealed that of several possible alloys, the silver platinum was the most suitable with regard to solubility.
Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews
Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews
Bachelors Theses and Reports, 1928 - 1970
It is the purpose of this investigation to obtain some insight into optimum conditions for leaching Stibnite with sodium hydroxide solution and also to steady the factors affecting the electrolysis of the resulting solution.
Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran
Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran
Bachelors Theses and Reports, 1928 - 1970
The reclamation of metals from scrap is becoming increasingly important in the metallurgical industry. Copper, because it does not corrode readily and is electronegative to most common metals, is peculiarly adapted to reclamation.
Magnesium - Tellurium By Powder Methods, George Gale
Magnesium - Tellurium By Powder Methods, George Gale
Bachelors Theses and Reports, 1928 - 1970
Today considerable work is being done in the compressed metal powder field which is gradually obtaining prominence as a valuable branch of metallurgy. The mass of data, however, has led to many different ideas on the results of sintering.
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Bachelors Theses and Reports, 1928 - 1970
The Golden Messenger Mine which is approximately twenty-three miles northeast of Helena, Montana, near York, on Trout Creek, has long presented several problems of both theoretical and practical interest.
The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers
The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers
Bachelors Theses and Reports, 1928 - 1970
The subject to be covered by this paper is based upon field study made during a six week stay at Jardine. The work began on June 19, 1937 and ended on July 31 of the same year.
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
Bachelors Theses and Reports, 1928 - 1970
This investigation, carried on in the metallurgical laboratories at the Montana School of Mines, was undertaken with the desire to work out a rapid method for the estimation, or the determination, of the amount of lead in zinc.