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Articles 1 - 28 of 28
Full-Text Articles in Physical Sciences and Mathematics
Fossil Bearing Basalts (More Particularly The Yakima Basalt Of Central Washington), George F. Beck
Fossil Bearing Basalts (More Particularly The Yakima Basalt Of Central Washington), George F. Beck
All Faculty Scholarship for the College of the Sciences
Such an overwhelming majority of the floral and faunal remains of the earth's crust have been yielded by rocks of sedimentary origin that generalized statements concerning the occurrence of fossils often neglect their more rare appearance in metamorphic and igneous rocks. In fact there is the temptation, after volcanic tuffs have been excluded as more or less sedimentary, to venture the positive assertion that by their very character igneous rocks are incapable of recording the presence of the life which may have existed at the time of their extrusion. As a result, most that has been written concerning fossil floras …
Attempted Proofs Of The Differentiation Of Magmas By Syntexis, Clifford Wendel
Attempted Proofs Of The Differentiation Of Magmas By Syntexis, Clifford Wendel
Bachelors Theses and Reports, 1928 - 1970
This investigation was an effort to obtain proof of the much disputed principle that most of the observed magnetic differentiations have been due to the assimilation, or syntexis, of the intruded country rocks.
A Metallurgical Study Of Gold Ores, Alfred A. Bloom
A Metallurgical Study Of Gold Ores, Alfred A. Bloom
Bachelors Theses and Reports, 1928 - 1970
Gold is widely distributed in the earth's crust in small quantities. Gold is found in nature in two forms; the element itself and the compound gold telluride. In all cases, silver in some proportion is an alloying constituent.
Electrolytic Recovery Of Copper And Zinc From Brasses, Thomas Barker Jr.
Electrolytic Recovery Of Copper And Zinc From Brasses, Thomas Barker Jr.
Bachelors Theses and Reports, 1928 - 1970
Reclaimed metals, or secondary metals, are becoming of great importance in the metal industries of the world. Secondary metals are an important factor in production. The increase in the secondary production of copper is due to many factors. One of these may be its permenance, that is, the metal does not corrode very readily. Another reason for increase in production is the high price paid for it.
The General Geology Of The Cardwell Mining District, Clyde Congdon
The General Geology Of The Cardwell Mining District, Clyde Congdon
Bachelors Theses and Reports, 1928 - 1970
The Cardwell Mining District is part of the greater Whitehall Mining District. The district is situated about four miles to the east and northeast of Whitehall in the southern end of the Bull Mountains which are near the Continental Divide. The first reported production was in 1896 after the discovery of the Mayflower Mine. Mining has been carried on intermittently and on a small scale since that time.
Microscopic Study Of Montana Silver Ores., Edwin Johnson
Microscopic Study Of Montana Silver Ores., Edwin Johnson
Bachelors Theses and Reports, 1928 - 1970
A microscopic investigation of the Montana silver minerals was conducted. This study consisted mainly of identifying the silver and silver-bearing minerals and of determining their paragenetic relationships. The increasing amount of research in which the reflecting microscope is employed is evidence of the great value of this method of approach in the solution of problems of paragenesis of the opaque minerals.
The Geology Of Lost Creek Canyon With Special Reference To Igneous Activity, John Kolesar
The Geology Of Lost Creek Canyon With Special Reference To Igneous Activity, John Kolesar
Bachelors Theses and Reports, 1928 - 1970
This investigation was undertaken primarily as a problem in geologic mapping, coupled with a study of stratigraphy, glaciation, igneous phenomena, and structure. The area is admirably suited to a study of geology and geologic events. Because it is small in extent, the area was studied in some detail during the time which was devoted to field work. The record of igneous activity of past geological ages is remarkably well exposed, since Lost Creek Canyon was carved through the roof of a stock or batholith by the glaciers of the Pleistocene epoch.
A Preliminary Study Of The Ostracoda Of The Big Snowy Group, Mississippian, Of Montana., John C. Rabbitt
A Preliminary Study Of The Ostracoda Of The Big Snowy Group, Mississippian, Of Montana., John C. Rabbitt
Bachelors Theses and Reports, 1928 - 1970
In the field, samples were taken vertically and horizontally along the various outcrops in different sections of central and south-central Montana. At important localities the samples were taken about every half-foot vertically; in other sections they were taken every few feet.
Siliceous Sponge Spicules Of The Quadrant Formation From Montana., Lester Zeihen
Siliceous Sponge Spicules Of The Quadrant Formation From Montana., Lester Zeihen
Bachelors Theses and Reports, 1928 - 1970
A sponge spicule is a siliceous or calcareous individual or group of rays which form a framework for the sponge. Sponge spicules are very delicate and easily broken. The methods used in obtaining micro-fossils vary considerably with the type of material from which they are to be recovered and the frailness of the fossil obtained.
The Electrodeposition Of Manganese From Certain Aqueous Solutions, Fred J. Hill
The Electrodeposition Of Manganese From Certain Aqueous Solutions, Fred J. Hill
Bachelors Theses and Reports, 1928 - 1970
Careful examination of the literature available shows that the electrodeposition of manganese from various aqueous solutions has not been attempted to any great extent. The best method for the electrodeposition of pure manganese consists in the electrolysis of a solution containing manganous and ammonium sulphates.
The Staining Effect Of The Hydrochloric Acid-Chromate Trioxide Solution On The Minerals Of The Chalcocite-Stibnite-Galena Ternary System., John W. Johns Jr.
The Staining Effect Of The Hydrochloric Acid-Chromate Trioxide Solution On The Minerals Of The Chalcocite-Stibnite-Galena Ternary System., John W. Johns Jr.
Bachelors Theses and Reports, 1928 - 1970
The object of this work has been to devise a method by which the different phases in the chalcocite-stibnite-galena ternary system may be identified. As the mineralogists have no precise methods for the identification of these phases, a hydrochloric acid-chromate trioxide staining solution was employed.
Occurrence And Origin Of Placer Gold In Montana, John K. Halse
Occurrence And Origin Of Placer Gold In Montana, John K. Halse
Bachelors Theses and Reports, 1928 - 1970
From time immemorial man has used gold as a medium of exchange, a measure of value, as jewelry and for ornamentation. Placer gold has led directly or indirectly to the settlement of lands, California and Alaska being the two best known examples. It has led the way to the discovery of other important mineral wealth, the discovery of the copper and silver deposits at Butte, Montana and the discovery of the silver deposits at Cripple Creek, Colorado being two good examples.
An Investigation Of The Properties Of Some Of The White Metal Alloys, William James Walsh Jr.
An Investigation Of The Properties Of Some Of The White Metal Alloys, William James Walsh Jr.
Bachelors Theses and Reports, 1928 - 1970
Although there is no standardized list of alloys, most investigators have, to avoid confusion, concurred in at least grouping the metals under several general heads. Precious metals: gold, silver and the platinum group; the light metals: aluminum and magnesium; the non-ferrous metals (excluding all steels and iron-base alloys); and the antifriction metals.
The Separation Of Tungstic Oxide From Scheelite And Its Subsequent Reduction With Hydrogen, Dave Jones
The Separation Of Tungstic Oxide From Scheelite And Its Subsequent Reduction With Hydrogen, Dave Jones
Bachelors Theses and Reports, 1928 - 1970
The largest known deposits of tungsten ores occur in the continuation of the Indo-Malayan Mountains, which extends through Burma, Malaya, China, Japan, and Chosen. Production of tungsten concentrates was started in 1910 in Burma, and in 1911 this country was the world's largest producer. China produced but little until 1916, but has since supplied over fifty per cent of the world's requirements.
The Sugar Beet Industry Of Nebraska, Esther S. Anderson
The Sugar Beet Industry Of Nebraska, Esther S. Anderson
Conservation and Survey Division
No abstract provided.
A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert
A New Fossil Peccary, Prosthennops Niobrarensis, From Brown County, Nebraska, Edwin H. Colbert
Bulletin of the University of Nebraska State Museum
During the summer of 1929, the writer, accompanied by Mr. Paul O. McGrew of the University of Nebraska, discovered during the course of excavations for fossil vertebrates in northern Brown County, Nebraska, a fairly complete peccary skull referable to the genus Prosthennops. This skull, due to its several unusual characters, as well as to its fair degree of completeness, would seem to warrant a special and a rather detailed description. Consequently the specimen has been kindly turned over to me by Dr. E. H. Barbour, Director of the Nebraska State Museum, not only for the purpose of the present …
A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
A New Miocene Dog, Mesocyon Geringensis, Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum
A field party from the Nebraska State Museum consisting of Messrs. E. L. Blue, Frank Crabill, Loren Eiseley, and C. Bertrand Schultz, on August 28, 1931, was fortunate in finding the remains of a new Mesocyon. This specimen, number 4-28-8-31, the Nebraska State Museum, was found in the Gering formation (lower Miocene), fifteen feet above the Brule, 400 feet west of the road in Redington Gap, near the center of the S. 1/2, sec. 14, T. 19 N., R. 52 W., west of Bridgeport, Morrill County, Nebraska.
Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg
Gnathabelodon Thorpei, Gen. Et Sp. Nov. A New Mud-Grubbing Mastodon, Erwin Hinckley Barbour, George F. Sternberg
Bulletin of the University of Nebraska State Museum
In February, 1932, while opening a gravel pit to get material for highway construction, the skull, tusks, and mandible of a new longirostral mastodont were found by Robert Arnold on his ranch, Sec. 24, T. 12 S., R. 22 W., 1 1/2 miles due east of Ogallah, Trego County, western Kansas. This point is located about 20 miles west and three miles north of Hays, the seat of the Fort Hays Kansas State College, in the museum of which the above mentioned specimen is mounted and exhibited. When unexpectedly exposed by Mr. Arnold and his associates, the great skull was …
The Thiem Method For Determining Permeability Of Water-Bearing Materials, L. K. Wenzel
The Thiem Method For Determining Permeability Of Water-Bearing Materials, L. K. Wenzel
Conservation and Survey Division
No abstract provided.
A Geological Report On Several Localities Of Madison County, Montana, Hans Fritzsche
A Geological Report On Several Localities Of Madison County, Montana, Hans Fritzsche
Bachelors Theses and Reports, 1928 - 1970
The area selected for study comprises four different districts situated in Madison County, each of them showing typical geologic features: the South Boulder District, the "Montana type section of Paleozoic and Mesozoic rocks", the Mayflower District with the famous Mayflower mine, the Renova Hot Springs District as an excellent area for studying structural features, and the Silver Star Mining District with its contact metamorphic ore deposits.
A Preliminary Study Of The Micro-Fauna Of Certain Paleozoic Formations Of Montana, George Powe
A Preliminary Study Of The Micro-Fauna Of Certain Paleozoic Formations Of Montana, George Powe
Bachelors Theses and Reports, 1928 - 1970
The study of the micro-fauna of Montana formations has been almost entirely neglected. Because the petroleum industry of this state has not felt the necessity for using micro-paleontology in its sub-surface correlations, the science has been but little used. The Montana Power Company has had an examination made of some of its well cuttings by a competent micro-paleontologist who found some foraminifera in Mesozoic sediments. However, no investigations have been made to determine the presence and character of the micro-fauna of the Paleozoic formations of Montana.
The Effects Of Zinc Sulphate, Manganese Sulphate, And Iron Sulphate On The Lead Storage Cell., George A. Mccracken
The Effects Of Zinc Sulphate, Manganese Sulphate, And Iron Sulphate On The Lead Storage Cell., George A. Mccracken
Bachelors Theses and Reports, 1928 - 1970
The lead storage battery as it is used today is made up of the pasted type plates of lead dioxide, the anode, and sponge lead, the cathode, and wooden or hard rubber separators, which serve to insulate these from one another. In manufacturing these, it is desirable to keep them free from impurities.
Geology And Ground Water Resources Of Burke, Divide, Mountrail, And Williams Counties In North Dakota, Andrew G. Alpha
Geology And Ground Water Resources Of Burke, Divide, Mountrail, And Williams Counties In North Dakota, Andrew G. Alpha
Theses and Dissertations
No abstract provided.
Geologic Cross-Section, Forest City, Missouri To Du Bois, Nebraska, G. E. Condra
Geologic Cross-Section, Forest City, Missouri To Du Bois, Nebraska, G. E. Condra
Conservation and Survey Division
No abstract provided.
The Pleistocene Geology Of Nebraska, A. L. Lugn
The Pleistocene Geology Of Nebraska, A. L. Lugn
Conservation and Survey Division
No abstract provided.
Nebraska Soils Grouped According To General Productivity And Use Capabilities
Nebraska Soils Grouped According To General Productivity And Use Capabilities
Conservation and Survey Division
No abstract provided.
Groundwater Level Survey In Nebraska, Herbert A. Waite
Groundwater Level Survey In Nebraska, Herbert A. Waite
Conservation and Survey Division
No abstract provided.
Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed
Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed
Conservation and Survey Division
No abstract provided.