Geology Commons^™

A New Basic Copper Phosphate Mineral From Santa Rita, New Mexico, David B. Givens

Earth and Planetary Sciences ETDs

Supergene minerals are not common, nor are they rare at Santa Rita, New Mexico. Kerr (1950,307) reports the presence of cuprite, melaconite, native copper, chrysocolla, machite and azurite. There is also smithsonite present.

The physical appearance of the mineral, coupled with preliminary determinations of the indices of refraction, gave a rough correspondence with dihydrite (Larson and Berman, 1934, 135). However, enough discrepancy existed to warrant taking powder and Weissenberg X-Ray pictures. From these it was evident immediately that the specimen was a new mineral species.

The Red Cloud Sand And Gravel, A New Pleistocene Formation In Nebraska, C. Bertrand Schultz, Eugene C. Reed, A. L. Lugn

Conservation and Survey Division

Recent studies of the stratigraphy and paleontology of the Pleistocene of Nebraska have resulted in additional data that require further clarification and partial revision of the Grand Island sand and gravel formation (1,2) in order that there may be no condusion as the results of varying usage of the term.

A Graphic Résumé Of The Pleistocene Of Nebraska (With Notes On The Fossil Mammalian Remains), C. Bertrand Schultz, Gilbert C. Lueninghoener, W. D. Frankforter

Bulletin of the University of Nebraska State Museum

I T SEEMS desirable at this time to present a graphic resume of the Nebraska Pleistocene, together with a summary of the stratigraphic sequences of the fossil vertebrates. This report is based on data taken from various publications' in addition to information gathered by the present writers during the past fifteen or more field seasons. Intensive work has been done in the past five years in connection with recovery of paleontological material in the areas where government dams are under construction (Schultz, Lueninghoener, and Frankforter, 1948; Schultz and Frankforter, 1948; Holder and Wike, 1949). The information in the present paper …

Geology Of The Pre-Cambrian Rocks Of The Northern End Of The Sandia Mountains, Bernalillo And Sandoval Counties, New Mexico, Philip T. Hayes

Earth and Planetary Sciences ETDs

Most of the pre-Cambrian metamorphic rocks of the northern end of the Sandia Mountains crop out on and adjacent to a prominent spur, called the Rincon, which lies to the west of the main mountain mass. These metamorphic rocks which consist of quartzite, schist, and greenstone are considered to be the result of moderate regional metamorphism of clastic sedimentary rocks and possibly some basic flows and stills. These rocks are here tentatively named the Juan Tabo sequence and are Archeozoic or early Proterozoic age. The Sandia granite, which lies to the east and south of the Juan Tabo sequence, was …

The Geology Of Miller Cove, Blount County, Tennessee, Charlie Alexander Tucker

Masters Theses

Introduction: Miller Cove is an elongated lowland lying in the northwest part of the Kinzel Springs Quadrangle, Blount County, Tennessee. The airline distance southeast of the town or Maryville is seven miles. The cove is seven miles long from northeast to southwest. Its maximum width is 1.5 miles. It is bordered on the northwest by narrow-crested Chilhowee Mountain and on the southeast by Miller Cove Mountain and Hurricane Mountain.

The Occurrences Of Non-Metallic Minerals In Montana, Samuel T. Mitchell

Bachelors Theses and Reports, 1928 - 1970

This thesis is essentially an abstract of the literature concerning occurrences in Montana of minerals with a non-metallic luster. The dis­cussions give a general description of the occurrences of minerals as reported by the various references, but is not complete as less than 40 percent of the non-metallic minerals known to exist in Montana are discussed.

Progress Report: Chemical Quality Of The Surface Waters In The Loup River Basin, Nebraska, John G. Connor

Publications of the US Geological Survey

The Loup River and its tributaries transport moderate amounts of siliceous minerals from the sand hills region of north-central Nebraska to the Platte River near Columbus, Nebr. Predominant chemical characteristics of these waters are a high percentage of silica, moderate hardness, and a low percentage of sodium. The composition of the Loup River water is influenced by the geologic formations through which ground water, a major contributor to the flows of the Loup River branches, has percolated. Investigation of water quality at or near proposed dam sites in the Loup River basin indicates that if soil and drainage conditions are …

Microfauna Of The Colorado Shale In The Sunburst Dome Area, Montana, Merle W. Emmert

Bachelors Theses and Reports, 1928 - 1970

It has been hoped that a micropaleontological study of the shales of the Upper Cretaceous Colorado Group in northern Montana would reveal certain faunal zones which would serve as markers in an otherwise drab, undifferentiated, 1800 feet of grey, fissile shale. This paper presents the results of a study of the microfauna in certain samples from this shale in the Sunburst Dome area north of Shelby, Montana.

The Elkhorn Mine Of Jefferson County, Montana, David D. Walker

Bachelors Theses and Reports, 1928 - 1970

In 1901, after yielding metals valued in excess of five million dollars, it was considered worked out. Since that time the mine has passed through the hands of several own­ers, none of whom have failed to realize a profit from it. Although at no time since its zenith did it ever regain its once great production, it did provide a livelihood for those who worked it. Now with the American Smelting and Refining Company interested in it, perhaps it will once again become an important producer.

M.T A. Ensti̇tüsünün Faali̇yeti̇, - -

Bulletin of the Mineral Research and Exploration

No abstract provided.

Dudaş Anti̇muan Madeni̇ Ve Ci̇varinin Jeoloji̇k Etüdü, Ekrem Göksu

Bulletin of the Mineral Research and Exploration

No abstract provided.

Etude Geologi̇que Du Bassi̇n Nord Est De Di̇yarbakir, Necip Tolun

Bulletin of the Mineral Research and Exploration

No abstract provided.

Enerji̇ Santralleri̇ni̇n İnşasinda Jeoloji̇ni̇n Hi̇zmeti̇, Orhan Bayramgi̇l

Bulletin of the Mineral Research and Exploration

No abstract provided.

Petrol Sanayi̇i̇nde Ri̇zi̇kolar Doğuran Ve Bu Sanayi̇i̇ Hizlandiran Muhteli̇f Faktörleri̇n Rolü, K. Lokman

Bulletin of the Mineral Research and Exploration

No abstract provided.

Nekroloji̇, - -

Bulletin of the Mineral Research and Exploration

No abstract provided.

Anisotropism In Garnets, Arthur B. Merkle

Earth and Planetary Sciences ETDs

Six anisotropic garnets are studied by optical, thermal, and X-ray diffraction methods in an attempt to determine the cause of anisotropism. The garnets are all ungrandites with compositions ranging from chromian grossularite to nearly pure andradite, the composition having been estimated from indices of refraction and unit cell dimensions. In all cases the birefringence is 0.004 or less. Both positive and negative uniaxial and biaxial figures are sometimes observed. Heating of the garnets at 900°C for periods of 96 to 264 hours reduced the anisotropism in five of the six garnets studied; this observation is in agreement with previously reported …

Sulphidizing Of Cerussite, Emil A. Kovacevich

Bachelors Theses and Reports, 1928 - 1970

The oxide minerals, such as cerussite, are not as amen­able to flotation as the sulphide minerals. Sulphidization is the usual means used today to increase the recovery of an oxide flotation; however, sulphidization under the most ad­vantageous conditions does not yield very satisfactory re­coveries.

Faunal Studies Of The Lower Jefferson Limestones, James L. Eymann

Bachelors Theses and Reports, 1928 - 1970

The exact geologic age of the Jefferson limestone in Montana has not been definitely determined, other than it is probably of upper, but possibly in part of middle Devonian age. Although not of immediate or apparent economic importance, the determination of the exact age of the Jefferson limestone may be of much value in connection with the discoveries of large quantities of oil in Devonian strata in the northern Great Plains and, in particular, with the extensive deep drilling in northeastern Montana which is anticipated during the summer of 1951.

The Groundwater Of The Area North Of Flathead Lake, Montana, Frederick M. Hilpert

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the reasons for the ground water variations in the area north of Flathead Lake, Montana. Several methods were used in pursuing this investigation. Hydrographs were made of the various wells showing the season to season change as well as the year to year variation.

A Mineralogical Investigation Of Some Montana Hydrobiotites, John W. Baker

Bachelors Theses and Reports, 1928 - 1970

Vermiculite is one of the most recent important nonmetallic minerals to be exploited for use in the industrial world. For this reason, the fund of knowledge relating to this mineral is rather limited. This paper represents the results of laboratory studies that were undertaken to contribute data to this fund of knowledge.

Differential Thermal Analysis Of Some Carbonate Minerals, Paul L. Vandeveer

Bachelors Theses and Reports, 1928 - 1970

Thermal analysis is a relatively new method of determining the general composition of certain mineral substances. As is demonstrated by much of the literature previously written, clays and carbonates are especially adaptable to this method. The full importance of the method is not as yet realized, but it is rapidly approaching that point.

Chemical Analysis Of Igneous Rocks And Variation Diagrams Of Petrographic Provinces Of Montana, Frederick M. Hilpert

Bachelors Theses and Reports, 1928 - 1970

A total of 179 chemical analyses of igneous rocks are avail­able for the state of Montana, but these analyses do not cover the entire state in a satisfactory manner. There has been an emphasis on the central part of the state, and an almost complete lack of interest in the southern portion of Montana.

The Electrolytic Purification Of An Impure Cadmium Sulfate Solution With A Cell Utilizing A Mercury Cathode And A Lead Anode, W. D. Mcmaster

Bachelors Theses and Reports, 1928 - 1970

Cadmium is produced solely as a by-product and all cadmium of commerce is obtained from zinc ores. It is a rare occurrence when zinc deposits are found which do not contain some cadmium.

Determination Of The Activities Of Indium And Mercury And The Vapor Pressures Of Mercury Over These Amalgams From 0.00216 To 0.02494 Mole Fraction Indium At 25 C And From 0.00067 To 0.02410 Mole Fraction Indium At 70 C By Electromotive Force Measurements, Arthur H. Lutts

Bachelors Theses and Reports, 1928 - 1970

This work was performed to determine by experimental means the activities of both indium and mercury and the vapor pressures of mercury over these amalgams at 25 and 70 C.

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.

The Gallium-Indium Constitutional Diagram, Richard E. Gaffney

Bachelors Theses and Reports, 1928 - 1970

Because of the discrepancy as to whether there is solid solubility in the gallium-indium system, and the fact that no alloys with less than 1% indium were ever investigated; the possibility of solid solubility in either or both ends of the diagram was not overlooked. According to Hume-Rothery, two alloys with the same relative positions on the Periodic Chart should have about the same alloying habits.

Electrowinning With Amalgam Electrode, Ralph V. Anderson Jr.

Bachelors Theses and Reports, 1928 - 1970

Amalgam Metallurgy, a relatively new expression in the technology of metal extraction, was first chosen to describe certain new processes developed at the Duisburg Copper Works in Germany. The idea of using mercury, a costly and poisonous metal, as an intermediate in heavy chemical industry and in polarography are of recent origin; with the exception of a series of patents of little signif­icance and occasional comments in the literature, the work is hardly known.

Polarographic Analysis Applied To Metallurgical Solutions And Products, Donald W. Johnson

Bachelors Theses and Reports, 1928 - 1970

The polarograph has been applied to a large number of chemical and metallurgical analyses, and is especially applicable to solution control analysis and to the deter­mination of minute quantities of ions in the presence of large amounts of other ions.

Metal Production From Ore Deposits In Different Host Rocks In Montana, Robert F. Gale

Bachelors Theses and Reports, 1928 - 1970

It is known that many different kinds of rocks serve as host to the ore deposits of Montana, but the relative importance of each of these kinds of rock as a host for ore deposits has never been described in any published report.

The Influence Of Copper Upon The Age Hardening Properties Of Steel, Andre Rey

Bachelors Theses and Reports, 1928 - 1970

The virtues of alloy steels have been widely publi­cized in both technical literature and everyday adver­tising. Nearly everyone possessing a slight knowledge of metallurgy knows the beneficial effects of chromium in the manufacture of stainless steels, or the importance of nickel, molybdenum, vanadium, and other common elements used to alloy steels.