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Articles 29701 - 29730 of 29939

Full-Text Articles in Geology

Geological Phases Of Soil Erosion Investigation And Control In Nebraska, G. E. Condra Jan 1934

Geological Phases Of Soil Erosion Investigation And Control In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Brief Study Of The Cherokee Formation Outcrop In Kansas, Roland G. Holmes Jun 1933

A Brief Study Of The Cherokee Formation Outcrop In Kansas, Roland G. Holmes

Electronic Theses & Dissertations

The Cherokee formation is one of the important rock formations of Kansas. There has been much work done upon the coal beds of this formation but so far as is shown by a search of the available literature, there has been no work carried on making a study of the rock beds of the formation by means of chemical analysis.

This paper is an endeavour to do three things: (1) to make a brief study of the rocks of the Cherokee formation at various horizons, (2) to attempt to show by chemical analysis the position of the land mass from …


Leaching Copper Minerals In The Butte District, Kenneth C. Bellows May 1933

Leaching Copper Minerals In The Butte District, Kenneth C. Bellows

Bachelors Theses and Reports, 1928 - 1970

The history of mining in Butte is woven about three of our principal metals. The gold placers first attracted the attention of miners in 1863, and reached their peak production in 1867. Silver was the second metal mined, and this operation required the erection of large mills with a consequent increase in mining activity that made the district a prominent producer. Although the presence of copper in the silver ore had been known, the credit for the first development of the copper veins is due Senator W. A. Clark. The original Colusa, Mining Chief, and Gambetta claims were developed to …


The Calcite Veins Of The Livingston Formation, John Moore Conrow May 1933

The Calcite Veins Of The Livingston Formation, John Moore Conrow

Bachelors Theses and Reports, 1928 - 1970

An interesting group of calcite veins occur near Livingston Montana in a zone about eight miles wide and forty miles long in the edge of the Plains region of Montana in front of the Main ranges. The zone extends from the Boulder River south of Big Timber, through Springdale and Hunters Hot Springs, to Potter's Basin just north of Wilsall in Park County. The group of veins is particularly interesting because they cut relatively flat lying strata, suggest a structural relation­ship to one another, and they are nearly pure calcite.

The present investigation was to determine the position of the …


A Microscopic Study Of Some Volcanic Rocks In The Vicinity Of Butte, Evan Gustafson May 1933

A Microscopic Study Of Some Volcanic Rocks In The Vicinity Of Butte, Evan Gustafson

Bachelors Theses and Reports, 1928 - 1970

The rhyolite rocks in the vicinity of Big Butte present a very interesting, though complicated study. It seems that no extensive or conclusive work has ever been done upon these extrusives.

I have found that the rhyolites present a very interesting problem, especially microscopically, and that no doubt an intensive study along these lines will solve the problems concerning age relations of different flows and origin of the magma that produced the material for emanations.


A Study Of Montana Bentonite, William P. Ryan May 1933

A Study Of Montana Bentonite, William P. Ryan

Bachelors Theses and Reports, 1928 - 1970

Research has been undertaken both under Government and private auspices in an endeavor to develop uses for bentonite. Perhaps, the work done to date has had only in consideration the possible industrial importance of bentonite. No simple, quick methods for the determination of the properties or qualities of any particular bentonite have been developed.

In an attempt to establish whether or not there is a means of making rapid simple determinations of the quality of Montana bentonitic clays, and in particular, with regard to the uses to which the clays may be suited. The problem also involves a study of …


Effect Of Impurities Upon Current Efficiency In The Electrolysis Of Zinc Sulphate Solution, Robert Jess Smith May 1933

Effect Of Impurities Upon Current Efficiency In The Electrolysis Of Zinc Sulphate Solution, Robert Jess Smith

Bachelors Theses and Reports, 1928 - 1970

There are many elements which are detrimental to the current efficiency in the electrolysis of zinc sulphate solution. Fortunately the majority of these elements are easily removed in the purification process and cause no further trouble. The elements that are likely to cause trouble in ordinary plant operations are antimony, arsenic, cobalt, nickel, manganese and germanium. The following tests were made to determine the mutual effect on the current efficiency when several of the impurities were present in the electrolyte.


A Study Of The Composition Of Zinc Complex Cyanide Solutions By The Conductometric Method, Robert James Woody May 1933

A Study Of The Composition Of Zinc Complex Cyanide Solutions By The Conductometric Method, Robert James Woody

Bachelors Theses and Reports, 1928 - 1970

As the method or analysis used up to the present time has failed to give quantitative results in determining the composition of zinc cyanide baths, conductometric methods were adopted in this study. Supplementary tests were also carried out in this investigation.


Resource News-January/February 1993 Jan 1933

Resource News-January/February 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Origin Of The Place Names Of Nebraska, J.T. Link Jan 1933

The Origin Of The Place Names Of Nebraska, J.T. Link

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra Jan 1933

Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra Jan 1933

The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra Jan 1933

The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-November/December 1993 Jan 1933

Resource News-November/December 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Grenola Formation, G. E. Condra, C. E. Busby Jan 1933

The Grenola Formation, G. E. Condra, C. E. Busby

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp Jan 1933

The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook Jan 1933

Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-May/June 1993 Jan 1933

Resource News-May/June 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough Jun 1932

The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough

Bachelors Theses and Reports, 1928 - 1970

Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition. The problem is to convert the sulphide into the oxide form. This can be done by giving the sulphide ore an oxidizing-sulphatizing roast. Copper sulphate is soluble in water, so acid will be saved in the leaching process if copper sulphate is present. The iron in the copper sulphide ores is present as pyrite, or in combinations as bornite, or chalcopyrite.


Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew Jun 1932

Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew

Bachelors Theses and Reports, 1928 - 1970

A supply of so-called "copper pitch" ore was received by the Montana Bureau of Mines and Geology in response to a request by them from a resident of Kalispell, who had previously sent a specimen to the Bureau for a mineralogical analysis.

Since this material was little known and had apparently received but little study under a reflec­ting microscope, it was thought that such a study might throw some light on the mineralogical and chemical composition of the material.


The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr. Jun 1932

The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr.

Bachelors Theses and Reports, 1928 - 1970

The area studied consists of a large body of aplite situated 12 miles south of Butte. It extends eastward almost to the Butte-Pipestone road, southward to Lime Kiln Hill and westward a distance of 3000 feet.

The petrographic work was supplemented by a map of the area. Special attention was given to those frequent "Limonite Specks" found in the aplite.


Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins Jun 1932

Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins

Bachelors Theses and Reports, 1928 - 1970

The problem herein discussed deals with the pointing planes found in the area of rhyolite located in the northwestern portion of the Butte District. The question to be determined was whether or not the pointing planes in the rhyolites could be class­ified with the Butte Ore fissure systems.


A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson Jun 1932

A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson

Bachelors Theses and Reports, 1928 - 1970

This report deals with a bentonite deposit recently developed, approximately seven miles northeast of Warm Springs, Montana. A group of claims have been staked on the deposit and are owned by the Lincoln Mining Company of Anaconda, Montana. The company also has several claims prospected for silver one mile from its present site of operations, but the silver prospects have failed to produce. The bentonite deposit was discovered incidentally during the course of other development work, and at present two adits have been driven into the side of a mountain, each crosscutting a vein-like mass of bentonite varying from two …


The Rate Of Precipitation Of Copper Aluminide In The Silver Rich Silver-Copper-Aluminum Alloys, Thomas Finley Mcbride May 1932

The Rate Of Precipitation Of Copper Aluminide In The Silver Rich Silver-Copper-Aluminum Alloys, Thomas Finley Mcbride

Bachelors Theses and Reports, 1928 - 1970

In order to determine the best annealing temperature at which to age-harden the alloys, hardness tests on speci­men annealed for different lengths of time at different temperatures were made.


The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney May 1932

The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney

Bachelors Theses and Reports, 1928 - 1970

In the deposition of metallic zinc by electro­lysis from neutral or acid solution, little difficulty is experienced provided certain impurities are absent from the electrolyte. The use of the process has long been considered as a potential source, patents on the process having been issued as early as 1880. However, the early experimenters failed to realize the importance of impurities in the electrolyte, and for this reason, the process suffered several severe setbacks when commercial plants were built.


The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge May 1932

The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge

Bachelors Theses and Reports, 1928 - 1970

The purpose or this investigation is primarily to determine the best conditions for plating chromium on aluminum. The work was carried out with the hope of obtaining coherent deposits, and of determin­ing the conditions under which such deposits may be duplicated.


Ua66/8/5 Kyrock - The World's Best Pavement, George Huntington Clark, Ellen Churchill Semple Geographical Society Apr 1932

Ua66/8/5 Kyrock - The World's Best Pavement, George Huntington Clark, Ellen Churchill Semple Geographical Society

Student Organizations

Speech regarding Kyrock by George Huntington Clark, consulting geologist to the Kentucky Rock Asphalt Company given at a meeting of the Ellen Churchill Semple Geographical Society.


The Paleontology And Stratigraphy Of The Magdalena Group Of Northern And Central New Mexico, Wallace A. Bisbee Jan 1932

The Paleontology And Stratigraphy Of The Magdalena Group Of Northern And Central New Mexico, Wallace A. Bisbee

Earth and Planetary Sciences ETDs

No abstract provided.


State Geologist's Report On The Geology Of Maine 1930-1932, Joseph Conrad Twinem, Edward H. Perkins Jan 1932

State Geologist's Report On The Geology Of Maine 1930-1932, Joseph Conrad Twinem, Edward H. Perkins

Maine Collection

State Geologist's Report on the Geology of Maine 1930-1932


Joseph Conrad Twinem , State Geologist and Edward H. Perkins , Assistant Geologist

Second Series - Augusta 1932

Sections: Bibliography, Economic Geology, General Geology, Paleontology, Structural Geology



The Articulated Skeleton Of Titanotherium, Erwin H. Barbour Jan 1932

The Articulated Skeleton Of Titanotherium, Erwin H. Barbour

Bulletin of the University of Nebraska State Museum (1924–2023)

The skeleton of a titanotherium, stored since 1894, was installed in the west corridor of Morrill Hall, April 28, 1931. In the meantime the specimen has been visited by many citizens, women's clubs, and especially by delegations of school children, boy scouts, and like organizations, from various parts of the State and elsewhere. Repeated requests for a popular report on this particular specimen actuates the writing of this leaflet. Titanotheres were by far the largest creatures of Oligocene time in Nebraska. In point of size they are called gigantic, elephantine, and titanic. The titans of Greek mythology were giants, and …