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Articles 181 - 210 of 267
Full-Text Articles in Environmental Engineering
Mineral Occurences In Certain Pegmatite Dikes In Southwestern Montana, Jacob N. Jovick
Mineral Occurences In Certain Pegmatite Dikes In Southwestern Montana, Jacob N. Jovick
Bachelors Theses and Reports, 1928 - 1970
Pegmatite dikes are rather common in occurrence in parts of southwestern Montana, particularly in a region to the east of the Tobacco Root range 50 to 75 miles southeast of Butte.
The Recovery Of Zinc From Butte Mine Waters, Edmond M. Fern
The Recovery Of Zinc From Butte Mine Waters, Edmond M. Fern
Bachelors Theses and Reports, 1928 - 1970
Very little work has been done towards the recovery of zinc from mine water because the zinc content of the water is generally low. As different from copper, which can very easily be replaced by iron in any of its solutions, zinc is very high up in the electro-chemical series and so the few metals above zinc, most of which are rare and hence expensive, cannot be used to replace zinc from its solution.
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Mineralogy And Genesis Of The Vermiculite Deposits At Libby, Montana, Raymond Kujawa
Bachelors Theses and Reports, 1928 - 1970
The problem considered in this report is one of the mineralogy and mode of formation of the extremely pure, large bodies of vermiculite. Mineralogically the ultrabasic intrusive, with which the economic mineral is associated, presents an array of rather unusual minerals. The determination of these minerals, their associations, and the sequence of alteration that lead to the formation of the vermiculite bodies, constitutes the problem.
Geology Of Iron Deposits At Princeton Montana And Economic Aspects Of Iron Ore In Montana, Carl Lind
Geology Of Iron Deposits At Princeton Montana And Economic Aspects Of Iron Ore In Montana, Carl Lind
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to introduce to the reader, an iron deposit in the Princeton district, about 19 miles northeast by highway from Philipsburg, Montana. Heretofore there has been no written literature on this deposit. It is also intended to investigate the economic possibilities of iron ore in general in the State of Montana.
Insoluble Residues Of The Lower Mississippian Limestones Of The Madison Group, Fred G. Lines
Insoluble Residues Of The Lower Mississippian Limestones Of The Madison Group, Fred G. Lines
Bachelors Theses and Reports, 1928 - 1970
The correlation of non-fossiliferous drill samples is one of the difficult problems that is encountered in sub-surface stratigraphy. In order to truly correlate a formation, it must have some dis tinctive features and have an areal persistence of these features. These requirements are probably met best by limestone.
Chromite Deposits Near Red Lodge And Silver Star, Montana, Edmond F. Smigel
Chromite Deposits Near Red Lodge And Silver Star, Montana, Edmond F. Smigel
Bachelors Theses and Reports, 1928 - 1970
The Red Lodge and Silver Star chromite deposits of Montana have stimulated much interest during periods of war. The Red Lodge deposit is 25 miles southwest of Red Lodge which is also the nearest railroad point. Several workings are scattered throughout the area, exposing lense-like ore bodies averaging 33% chrome oxide. Silver Star is a much smaller deposit 5 miles west of Silver Star, Montana, which is its nearest railroad point. Lenses of chromite are exposed by pits and trenches, which average approximately 36% chromic oxide.
The Beneficiation Of Montana Silver Star Chromite Ore, Edwin J. Bride
The Beneficiation Of Montana Silver Star Chromite Ore, Edwin J. Bride
Bachelors Theses and Reports, 1928 - 1970
It is known that there are large deposits of chromium ore in Stillwater and Carbon Counties in South-Central Montana. The late James F. Kemp of Columbia University, stated in 1928, that these were the largest chromium deposits in the United States and probably in the world, although they were not considered of commercial grade as compared with foreign ores.
An Investigation Of The Ores Of The Big Seven Mine, Neihart, Montana, Francis L. Wilson
An Investigation Of The Ores Of The Big Seven Mine, Neihart, Montana, Francis L. Wilson
Bachelors Theses and Reports, 1928 - 1970
During the course of this investigation of the ores of the Big Seven mine, Neihart, Montana, the writer has attempted, through a microscopic study of polished sections, to ascertain the hypogene or supergene character of the ore minerals present in the ore suite.
Geologic Field Mapping In An Area Eight Miles North Of Three Forks, Montana, H. E. Lillis
Geologic Field Mapping In An Area Eight Miles North Of Three Forks, Montana, H. E. Lillis
Bachelors Theses and Reports, 1928 - 1970
The Three Forks are includes parts of Jefferson, Madison, Broadwater Pond Gallatin counties, Montana. Sedimentary formations lie at the surface nearly everywhere in the area, and the rugged surface topography has been developed through the folding and tilting of these formations and their differential erosion.
Stratigraphy And Paleontology Of The Eagle Formation In Montana And Adjacent Areas, Raymond Thompson
Stratigraphy And Paleontology Of The Eagle Formation In Montana And Adjacent Areas, Raymond Thompson
Bachelors Theses and Reports, 1928 - 1970
A conspicuous two hundred and fifty foot sandstone of central Montana, known as the Eagle Formation, constitutes part of the some five thousand feet of Cretaceous sediments in the state. It stands out in steep cliffs which stretch for many miles in the outcrop area from Wyoming to Canada.
Basic Information In The Granitic Rocks Of The Boulder Batholith, Clifford G. Sherwin
Basic Information In The Granitic Rocks Of The Boulder Batholith, Clifford G. Sherwin
Bachelors Theses and Reports, 1928 - 1970
Dark fine grained basic masses of rock are found in nearly every part of the Boulder Batholith, these commonly being referred to as inclusions, segregations, autoliths, and various other names. The origin, distribution, and composition of the dark inclusions form the basis for this report.
Some Chromite Deposits In Madison County, Montana, Russell H. W. Chadwick
Some Chromite Deposits In Madison County, Montana, Russell H. W. Chadwick
Bachelors Theses and Reports, 1928 - 1970
Chromite occurs in Madison County, Montana, in two areas, one three miles southwest of Silver Star, the other five miles southeast of Sheridan. The ore bodies are small, lenticular masses surrounded by metamorphosed sedimentary rocks of the pre-Cambrian Cherry Creek series. The ore was deposited from the hydrothermal solutions which serpentinized the surrounding metamorphic host rocks.
The Extraction Of Chromate Salts From Montana Chromite, Server Tasdemiroglu
The Extraction Of Chromate Salts From Montana Chromite, Server Tasdemiroglu
Bachelors Theses and Reports, 1928 - 1970
In this thesis I have tried to determine the suitable temperature, time and the amount of soda ash and lime needed for the calcining process. The leaching and purification tests were studied experimentally. The earlier process for making chromate from chromite was not the same as is used today. Therefore I have found it useful to put into this thesis the newest method for making chromate salts and their important uses.
Ground Water In The Lake Basin Field And Adjacent Area, Herman Neibauer
Ground Water In The Lake Basin Field And Adjacent Area, Herman Neibauer
Bachelors Theses and Reports, 1928 - 1970
This thesis consists of studying the stratigraphic and structural features of the Lake Basin Field and an adjacent area with special emphasis upon the ground water conditions present.
Oil And Gas Production Methods In Montana, Edgar A. Scholz
Oil And Gas Production Methods In Montana, Edgar A. Scholz
Bachelors Theses and Reports, 1928 - 1970
Montana's oil and gas industries aggregate a gross income of over 12,000,000 annually to the state. Oil and gas fields have been thoroughly discussed in literature as to geology, location, production and future possibilities. The specific object of this report has been to compile a comprehensive study of the production methods as they occur.
The Geology And Ore Deposits Of The Ermont Mines, James L. Kelly
The Geology And Ore Deposits Of The Ermont Mines, James L. Kelly
Bachelors Theses and Reports, 1928 - 1970
The Ermont Mines are located sixteen miles northwest of Dillon, Montana, in section 35 of T.6S., R.11W. This is in the central part of Beaverhead County. They are considered to be in the Argenta mining district, the town of Argenta lying three miles to the northeast.
The Concentration Of Scheelite From The Gold Concentrates Of The Jardine Mining Company, John H. Huxley
The Concentration Of Scheelite From The Gold Concentrates Of The Jardine Mining Company, John H. Huxley
Bachelors Theses and Reports, 1928 - 1970
The Purpose of this thesis was to investigate the possibility of concentrating scheelite from Wilfley table gold concentrates from the mill of the Jardine Mining Company; and to determine whether such concentration is economically feasible and the product of sufficiently high grade to meet commercial specifications for such a product.
Relationships Of Manganese Minerals In The Butte District, Charles F. Parent
Relationships Of Manganese Minerals In The Butte District, Charles F. Parent
Bachelors Theses and Reports, 1928 - 1970
The use of manganese in the steel industry as a deoxidizing and desulfidizing agent makes it a necessity in modern industry, while the various alloy steels using manganese for the quality of toughness are also indispensable. Manganese is also used in the manufacture of such various articles as battery cells, paints and glass.
A Study Of The Concentration Of A Low-Grade Manganese Ore From The Ennis District, John B. Schuettenhelm
A Study Of The Concentration Of A Low-Grade Manganese Ore From The Ennis District, John B. Schuettenhelm
Bachelors Theses and Reports, 1928 - 1970
The purpose of the investigation was to determine the most effective means of concentrating the manganese in the ore. The study was that of identification of the minerals present. This showed the presence of oxides of manganese and iron, and carbonates of calcium and manganese. Methods of investigation were planned to determined whether the ore could be concentrated effectively by gravity concentration methods.
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
A Study Of A Carbonaceous Gold Ore, James S. Huckaba
Bachelors Theses and Reports, 1928 - 1970
The presence of graphite in the ore of the Missouri-McKee Mine has made its treatment by the methods now used quite unsatisfactory. The study was undertaken to develop a new flow sheet which would give a high recovery and yet be economical enough to handle low grade material.
A Geological Report On An Area Five Miles Southeast Of Renova, Montana, And On An Area Seven Miles South Of Jefferson Island, Montana, Herman Neibauer
A Geological Report On An Area Five Miles Southeast Of Renova, Montana, And On An Area Seven Miles South Of Jefferson Island, Montana, Herman Neibauer
Bachelors Theses and Reports, 1928 - 1970
This trip was conducted to give those students working for their respective degrees an excellent opportunity to work under actual field conditions. A total of three weeks was taken to complete the required work. Two weeks were spent in the field gathering data, and making maps, and the last week was spent in the drawing room at the college preparing the final map.
The Measurement Of Current Efficiency In Zinc Sulphate Electrolytes Containing Antimony And Cobalt By Hydrogen Evolution, Arthur R. Hard
The Measurement Of Current Efficiency In Zinc Sulphate Electrolytes Containing Antimony And Cobalt By Hydrogen Evolution, Arthur R. Hard
Bachelors Theses and Reports, 1928 - 1970
The measurement of current efficiency by hydrogen evolution is based on the assumption that the portion of the current which deposits no zinc will release hydrogen. This assumption is correct for solutions containing no impurities electropositive to zinc.
The Geology And Mineralogy Of The Independence Mining District, Alan Kuhlman
The Geology And Mineralogy Of The Independence Mining District, Alan Kuhlman
Bachelors Theses and Reports, 1928 - 1970
From 1888 until 1893 the district was a booming mining camp. Seven stamp mills were running and ore was being mined from the Independence, King Solomon, Poorman, Golden, Hidden Treasure and Crown claims. The town of Independence, which was on the Boulder River at the fork of Basin Creek, boasted a population of 400 people.
Areal Geology Of The Post-Paleozoic Surface Of The Northwest Plains, William M. Broderick
Areal Geology Of The Post-Paleozoic Surface Of The Northwest Plains, William M. Broderick
Bachelors Theses and Reports, 1928 - 1970
Probably most of the area included in this report has been examined to some extent by oil geologists, and most, if not all, of the important domes have been discovered and surveyed thoroughly. In parts of the area, the bedrock is covered by glacial drift or alluvium material, but it is reasonable to believe that no new domal structure will be found. This means that surface examination alone will be insufficient in locating new oil fields, so future prospecting will be dependent, to a great extent, on studies of sub-surface stratigraphy.
Geology And Ore Deposits Of The Jardine Mining District, Park County, Montana, Douglas M. Dowell
Geology And Ore Deposits Of The Jardine Mining District, Park County, Montana, Douglas M. Dowell
Bachelors Theses and Reports, 1928 - 1970
The Jardine Mining district is in the extreme southern part of Park County, Montana. Jardine is five and one-half miles northeast of Gardiner, Montana, the northern entrance to Yellowstone National Park.
The Electrolytic Recovery Of Copper And Zinc From Scrap Brass With Special Reference To Lead-Bearing Brass., Frederick A. Hames
The Electrolytic Recovery Of Copper And Zinc From Scrap Brass With Special Reference To Lead-Bearing Brass., Frederick A. Hames
Bachelors Theses and Reports, 1928 - 1970
Several methods have been investigated, with some success, for treating scrap brass to recover copper and zinc, either as pure metals or as salts of the metals. One of the more promising of these methods is electrolysis in sulfate solution for the recovery of pure copper and zinc.
Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole
Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole
Bachelors Theses and Reports, 1928 - 1970
Electrolysis of molten mixtures of lead chloride and galena was carried out under various conditions of temperature, time, composition, and current densities; without a diaphram, and with various diaphrams. Continuous runs, with necessary additions of lead sulfide and lead chloride to maintain a melt of the proper composition, were attempted on a small scale.
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette
Bachelors Theses and Reports, 1928 - 1970
This report includes the results of geological investigation of the Clinton Mining District and the Hidden Treasure Mine.The Clinton Mining District is an unorganized mining district situated in the Garnet Range two and one-half miles northeast of the town of Clinton, Montana, which is on the Northern Pacific Railway and the Chicago, Milwaukee, St. Paul, and Pacific Railroad seventeen miles east of the city of Missoula.
The district is in the same range of mountains as the Garnet Mining District and the drainage from the district covered is to the south into the Hell Gate or Clarks Fork of …
Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele
Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele
Bachelors Theses and Reports, 1928 - 1970
An examination of the Ermont Mine was requested by the owners, Messrs. J. R. Bowles and R. B. Caswell, to determine the amount and grade of ore developed, the advisability of constructing a mill at the present time, and to recommend future development work.
The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge
The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge
Bachelors Theses and Reports, 1928 - 1970
Magnesium is one of the most active elements and forms oxides, nitrides, and carbides, but not hydrides. Due to its activity, low melting point, low strength when unalloyed, and the difficulty with which it is worked, magnesium has not been and is not at present well developed.