Physical Sciences and Mathematics Commons^™

Geology Of Santa Ana Mesa And Adjoining Areas, Sandoval County, New Mexico, Paul E. Soister

Earth and Planetary Sciences ETDs

The foremost purpose of this report is to outline the general geology and geomorphology of the mapped area. Secondarily, the relationship of the Santa Fe formation of late Tertiary age to older strata is explored. Presence of basalts and other volcanics in the Santa Fe formation is shown. Evidence indicating the probable contemporaneity of part of the Chicoma volcanic group and of the Santa Fe formation is discussed.

Plenoaste Crystals From An Olivian Basalt, Caballo Mountains, New Mexico, Charles Maxwell

Earth and Planetary Sciences ETDs

The thesis area lies along the eastern base of North Ridge which forms the northern part of the Caballo Mountains. This ridge rises abruptly, about 1,500 feet, above the considerably dissected lowland on which the area is located. The lowland lies near the head of Mescal Canyon and is dissected into the ridges and valley with a relief as much as 300 feet. The drainage is east and north into Mescal Canyon (Pl.2) which joins the Rio Grande just below Elephant Butte Dam.

Jade: Its Occurrences, Mineralogy, Geology, Uses And Technology, Robert L. Borton

Earth and Planetary Sciences ETDs

No abstract provided.

The Sedimentary Petrography Of The Oil And Gas Producing Horizons In Montana, Patrick J. Donahue

Bachelors Theses and Reports, 1928 - 1970

Montana is an excellent oil province, as oil and gas are pro­duced from a wider range of beds in the geologic section than in any other district in the United States. (1,864) Commercial fields have been developed in Ordovician, Devonian, Mississippian, Pennsylvanian, Jurassic, Lower Cretaceous, and Upper Cretaceous. It is believed that by describing the physical characteristics of the producing horizons, and by placing this information in one compact volume, a better under­standing of oil and gas occurrence in Montana may be gained.

The Accessory Minerals Of Some Granitic Rocks Of The Boulder Batholith, Robert T. Donahue

Bachelors Theses and Reports, 1928 - 1970

Although the position of the Boulder batholith in space and time is well known, the modes of occurrence of various rock types and the inter-relationships between the petrographic types are not known in detail.

The Mechanical Production Of Zinc Dust, Charles A. Schroer

Bachelors Theses and Reports, 1928 - 1970

The object of this thesis is to produce zinc dust suitable for zinc leach purification, by direct application of a mechanical force on a stream of molten zinc.The project is a continuation of work done by Mr. D. S. Gleason, while working for his Master of Science degree in the spring of 1952.

Flotation Of Huebnerite, Henry Albright

Bachelors Theses and Reports, 1928 - 1970

The development of suitable beneficiation processes for treating domestic low-grade tungsten ores is a problem now facing the mineral industry. While we are now consuming more tungsten than normally because of the defense program, we are no longer able to import ores from the world's principal source, China. The problem then, is to increase our domestic production so as to ac­quire a greater degree of self-sufficiency.

Geological Problems At Kerr Dam Lake County, Montana, Roger C. Rice

Bachelors Theses and Reports, 1928 - 1970

With an increased demand for power in Montana and sur­rounding territory, there is a need for existing power installations to produce more hydro-electric power. Kerr Dam, Lake County, Montana has been one of the dams selected for added output.The existing dam and power house installation with its two hydro-electric was finished in 1938, and has been producing power ever since.

The Construction Of An X-Ray Camera, Emil Bazarnicki

Bachelors Theses and Reports, 1928 - 1970

The major portion of the construction of the X-ray camera was performed in the machine shop of Montana School of Mines. However, some machine work had to be accomplished in the Butte High Machine Shop, as well as in the machine shop of the Anaconda Copper Mining Company.

Protective Refractory Coatings On Titanium Metal, Eugene F. Gibbs

Bachelors Theses and Reports, 1928 - 1970

The problem undertaken in this thesis concerns the development of a newer phase of metallurgy, namely the adaption of the strong, lightweight metal titanium to high-temperature uses. The primary objective of the investigation is to determine wheth­er the application of refractory coatings to titanium will pro­tect the metal from chemical reactions and corrosion at high temperatures.

The Birdie Mine Tungsten Deposit Butte Mining District, Silverbow County, Montana, Bernard A. Fahm

Bachelors Theses and Reports, 1928 - 1970

The importance of tungsten has encouraged the search for minerals of this metal, and consequently new deposits have been discovered, and known deposits have been re-examined. Western Montana has rather widespread deposits if low-grade types are also considered. Many deposits were known long ago, but abandoned because the use of tungsten was still in its beginning stage and therefore little attention was given to this type of mineral.

The Effect Of Ferric Iron Upon The Current Efficiency And The Deposition Of Copper In The Electrowinning Of Copper From Copper Sulphate Solutions, James L. Owings

Bachelors Theses and Reports, 1928 - 1970

In the hydrometallurgy of copper, probably the most widely used method for the precipitation of copper is by electrolysis using insoluble anodes. The process is similar in many respects to the electrolytic refining of copper; one of the main differences is the use of insoluble anodes in electrowinning as compared to the use of impure copper anodes in electrorefining. Impurities, however, are common to both processes. The nature of these impurities differ and the problem of purifying the electrolyte is also different.

Electrowinning Of Zinc By Mercury Cathode, Tor O. Notevarp

Bachelors Theses and Reports, 1928 - 1970

The problem was the investigation of electrowinning of zinc by using a mercury cathode, employing a neutral solution of zinc sulphate and containing small amounts of zinc, in the order of ten grams zinc per liter and less. The purpose of this study was on the base of the laboratory experiments to investigate the operational data that might possibly be applied in practice or industry.

The Occurrence Of Molybdenite In The United States, Alaska, Canada, And Newfoundland, Richard W. Brummett

Bachelors Theses and Reports, 1928 - 1970

In this study of molybdenite and its occurrence, the pub­lished literature on 66 separate deposits was reviewed, sum­marized, and coordinated. The following descriptions are in­tended to point out the important features of molybdenite oc­currences as described in the literature.

The Immersion Coating Of Indium Upon Magnesium From Sulphate Solutions Containing Flourides, John J. Harrington

Bachelors Theses and Reports, 1928 - 1970

The thesis problem that will be discussed in this report is an investiga­tion of a method of plating a coating of indium upon magnesium and magnesium alloys. The method used to accomplish the final results is the immersion pro­cess. It can be defined as the process of coating a metal with a second metal by immersing the first in a solution containing ions of the second.

Variation Of Induction And Hysteresis Curves For The Heusler Alloy, Cu2mna1, Ford W. Knight

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the fundamental magnetic characteristics of induction and hysteresis, for the alloy Cu₂MnAl. This is a ternary, ferromagnetic Heusler alloy. The problem is not only to determine these characteristics for the alloy as-cast but to heat treat it and observe the manner in which different heat treat­ments affect these two fundamental magnetic characteristics.

The Mechanical Production Of Zinc Dust, Robert F. Payne

Bachelors Theses and Reports, 1928 - 1970

It was the purpose of this investigation to delve further into the possibility of producing, by mechanical means, a zinc dust which might be suitable for the puri­fication of zinc leach solution.

The Metallography Of Aluminum Casting Alloys, Donald D. Goehler

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to supply the Montana School of Mines with an up to date source of information concerning the metallography of aluminum casting alloys. This thesis is designed as a continuing project. Ultimately, it is hoped that a catalog containing all the typical structures of aluminum casting alloys will develop.

The Effect Of Iron Upon The Electrowinning Of Copper With An Amalgam Electrode, John A. Alexander

Bachelors Theses and Reports, 1928 - 1970

Current commercial use of the mercury cathode cell is limited to two types of electrolytic sodium cells-­the Castner cell and the Sorenson cell. Mercury as a cathode medium has also found application in polarographic analysis, a method of a simultaneous quantitative and qualitative analysis of several metal components of solution.

An Investigation Of The Hardening Properties Of Some Alpha Copper Indium Alloys, Charles W. Mcpherson

Bachelors Theses and Reports, 1928 - 1970

Precipitation hardening alloys has assumed a major role in modern da^y development of alloys. In his search for stronger, harder materials, the metallurgist has often been limited by the cost of metals which posses the needed properties.

Electroplating Of Chromium, Nickel And Copper Upon Titanium, Stanley O. Fong

Bachelors Theses and Reports, 1928 - 1970

Recently, there has been a great amount of research work done on the metal titanium. Since it is a light weight metal, with unusual strength and good resistance to corrosion, it may be a possible substitute for aluminum and magnesium alloys, or steel.

The Study Of An Unusual Augite Near Cabezon Peak, Sandoval County, New Mexico, George Brunton

Earth and Planetary Sciences ETDs

When the writer was examining some of the volcanic plugs near Cabezon, New Mexico in the spring of 1951, he discovered in Plug No. 5 (Pl. 2, D.W. Johnson, 1907) some unusual, large vitreous inclusions.

Geology Of The Sierra De Santa Rita, Zacatecas, Mexico, Zoltan Decserna

Earth and Planetary Sciences ETDs

Information concerning the southern extent of the Mexican geosyncline was desired with the mapping of Sierra de Santa Rita, near Concepción del Oro, Zacatecas, in northern Mexico. Three Upper Jurassic and six Cretaceous formations were mapped, within which lithology and changes in thickness do not reflect proximity of this area to ancient shore lines. The first description of the Huizachal formation in northern Zacatecas is given.

An Attempted Determination Of The Approximate Chemical Composition Of The Livingston Volcanics By The Fused Bead Technique, Robert D. Geach

Bachelors Theses and Reports, 1928 - 1970

Many fine-grained igneous rocks, basaltic and felsitic in character, are difficult to classify. In numer­ous cases, it is impossible to classify these types of rocks by quick methods of identification. It was hoped at the beginning of this study that refractive indices of glasses formed by quick artificial fusion of samples from selected suites of igneous rocks would show a close cor­relation in chemical composition.

Dispersing Agents In The Pipette Method Of Soil Analysis, Eugene W. Price

Bachelors Theses and Reports, 1928 - 1970

For many years the study of sediments has been a major problem in the field of geology. Especially is this true of the branch of sedimentology known as grain-size distribution. Throughout the years many classical experiments have been performed and procedures evolved from them, all with the purpose of a better and easier determination of the grain-size distri­bution of fine sediments, particularly the clays.

Geology Of The Mink Creek Region, Idaho, Allen S. Keller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Mink Creek region is centered 14 miles northeast of Preston in Franklin County, Idaho (see Index Map, Figure 1). The area of this report comprises approximately 70 square miles. It is bounded on the north and south by parallels 42°17' and 42°11' North Latitude and on the east and west by meridians 111°37' and 111°49'. The easternmost part of the area is located in the Bear River Range and is part of the Cache National Forest.

The region is readily accessible. A paved Idaho State Highway goes through the center of the area and State Highway 34 skirts the …

An Early Tertiary Stream Channel Between Fish And Pipestone Creeks, Ten Miles West Of Whitehall, Montana, Henry D. Olson

Bachelors Theses and Reports, 1928 - 1970

Driving between Butte, and Whitehall, Montana, on highway U.S. 10S, one observes an interesting phenomenon in the lower end of Little Pipestone Creek canyon. One side and the bottom of the canyon is cut inthe hard igneous rocks of the Boulder Batholith, and the other side of the canyon is made of unconsoli­dated sand, gravel, and cobbles.

X-Ray Investigations Of Arkansas Graphites, John A. Doughty

Journal of the Arkansas Academy of Science

No abstract provided.

A Report On Drosophila Collections In Nebraska, David D. Williams, Dwight D. Miller

Bulletin of the University of Nebraska State Museum

Until rather recently little has been known of the Drosophila species of Nebraska. Sturtevant (1921) lists Nebraska as one of seven states from which no Drosophila had been reported. Patterson and Wagner (1943) show that collections of Drosophila pseudoobscura had been made in the vicinities of Scottsbluff and Kearney, but no other Drosophila species are reported from Nebraska in their publication.

Insect Types In The Collections Of The University Of Nebraska State Museum, Martin H. Muma

Bulletin of the University of Nebraska State Museum

In 1948 the insect collections at the University of Nebraska State Museum were placed in the care of the author. Prior to that date curatorial duties were assumed or assigned to full time teaching or research staff members. As would be expected under the latter circumstances, the organization of study material and types was neglected in many families and genera. Since 1948 type material, because of its intrinsic value, has received considerable attention. All primary and representative secondary types have been assembled in three museum cases and one slide cabinet for curatorial and study convenience.