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Articles 58831 - 58860 of 59333
Full-Text Articles in Entire DC Network
Louisiana Cane River Eocene Foraminifera., Keith Morgan Hussey
Louisiana Cane River Eocene Foraminifera., Keith Morgan Hussey
LSU Historical Dissertations and Theses
No abstract provided.
Nebraska In Relation To The Problems Of Pleistocene Stratigraphy, Alvin Leonard Lugn
Nebraska In Relation To The Problems Of Pleistocene Stratigraphy, Alvin Leonard Lugn
Department of Earth and Atmospheric Sciences: Faculty Publications
Nebraska is so peculiarly situated with respect to Pleistocene deposits of glacial, fluviatile, and eolian origin that it holds the key to the solution of many important problems of the stratigraphy of that period. A brief outline of the Pleistocene geology of Nebraska with several illustrations is followed by a statement of and brief discussion of several of these problems. The main problems touched upon are: age of the Loveland loess, Pleistocene classification, correlation with Europe, the need for a better understanding of what is meant by "glacial" and "interglacial," the problem of glacial and interglacial loess, the duration of …
Montana Oil Fields, Conrad F. Lundgren
Montana Oil Fields, Conrad F. Lundgren
Bachelors Theses and Reports, 1928 - 1970
Since the discovery of oil in Montana in1916, the petroleum industry has advanced to a point where over 5,000,000 barrels of oil worthover $6,500,000 has been produced in each of the three past years (1936, 1937, and 1938).
Effect Of Organic Matter Decomposition On The Solubility And Fixation Of Phosphorus In Alkaline Soils, H. F. Rhoades
Effect Of Organic Matter Decomposition On The Solubility And Fixation Of Phosphorus In Alkaline Soils, H. F. Rhoades
Nebraska Agricultural Experiment Station: Historical Research Bulletins
It is the purpose of this bulletin to report a laboratory study on the effects of organic matter decomposition on the solubility and fixation of phosphorus in alkaline soils. The study included the following: (1) a comparison of the effects of a decomposing organic material with those of a physiologically acid nitrogen fertilizer, and (2) a comparison of the effects of different organic materials of varying phosphorus contents.
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw
Bachelors Theses and Reports, 1928 - 1970
The successful application of the phenomenon of precipitation hardening to aluminum and copper has indicated the possibility of hardening all metals in the same way. The phenomenon of age hardening was discoveredin 1911, and since that time much research has been carried on in all parts of the world on various alloy systems.
Structure Of Eutectics, Dilip K. Das
Structure Of Eutectics, Dilip K. Das
Bachelors Theses and Reports, 1928 - 1970
The present paper is a result of work done on the study of structures of eutectics of a certain eutectic-forming binary systems. In this research work no systems with intermetallic compounds have been studied.
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner
Bachelors Theses and Reports, 1928 - 1970
In metallurgical practice today some of the relatively rare metal Indium is recovered as a by-product from the ores of other metals. Indium is a soft, silvery—white metal belonging to the third group of the periodic classification. It is situated just above tin in the electrochemical series.
A Study Of Solders, John D. Prater
A Study Of Solders, John D. Prater
Bachelors Theses and Reports, 1928 - 1970
The purpose of this paper is to furnish a qualitative method of comparing the degree of wetting of various solders upon different plate metals when several fluxes are used.
The Pre-Jurassic Surface Of Montana., G. Fay
The Pre-Jurassic Surface Of Montana., G. Fay
Bachelors Theses and Reports, 1928 - 1970
It has long been known that, prior to the deposition of Jurassic sediments, Montana was subjected to an intensive period of erosion. Mention of this may be found in numerous reports, especially those dealing with western Montana.
Electrolytic Manganese, George T. Derana
Electrolytic Manganese, George T. Derana
Bachelors Theses and Reports, 1928 - 1970
The production of metallic manganese by electrolysis is of potential value for the recovery of this strategic metal from domestic deposits. These deposits are largely unsuitable for the production of ferromanganese, but they are amenable to low-cost leaching processes.
Igneous Rocks Of The Jardine And Crevasse Mountain Mining Districts., Ray E. Gilbert
Igneous Rocks Of The Jardine And Crevasse Mountain Mining Districts., Ray E. Gilbert
Bachelors Theses and Reports, 1928 - 1970
It is surprising to learn that so large a variety of igneous rocks is present in the Jardine and Crevasse Mountain mining districts, a region that is generally thought of as consisting principally of schists.
The Age Hardening Of Copper With Manganese Silicide., Gordon A. Davis
The Age Hardening Of Copper With Manganese Silicide., Gordon A. Davis
Bachelors Theses and Reports, 1928 - 1970
The increase in hardness is attributed to the manganese silicide being precipitated from solid solution and deposited between crystal planes. The subsequent softening which occurs on prolonging the period of reheating is believed to be due to an agglomeration of the dispersed hardening agent.
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart
Bachelors Theses and Reports, 1928 - 1970
The Golden Sunlight Mine is in the northern part of the Cardwell mining district on the eastern slope of a small range that rises by a series of benches to an elevation of 7,200 at a point five miles east of the town of Whitehall in Jefferson County.
Powder Metallurgy, Cecil R. Waldron
Powder Metallurgy, Cecil R. Waldron
Bachelors Theses and Reports, 1928 - 1970
The metal powders may be produced in a number of different ways. In metals where the intercrystalline material is brittle enough, they may be ground in a ball mill or eddy mill. The fineness of such a powder is more or less controlled by the grain size of the original metal.
Effect Of Soil Type, Slope, And Surface Conditions On Intake Of Water, F. L. Duley, L. L. Kelly
Effect Of Soil Type, Slope, And Surface Conditions On Intake Of Water, F. L. Duley, L. L. Kelly
Nebraska Agricultural Experiment Station: Historical Research Bulletins
In connection with investigations of runoff and erosion in the Great Plains an attempt has been made by means of artificial applications of water to determine certain principles concerning the effect of different soils and soil conditions on runoff and soil erosion. Such information is needed in planning all field operations dealing with soil erosion and moisture control. It is also needed in connection with watershed studies that are being established in the Central Great Plains, dealing with runoff and flood flows from larger areas. The method employed makes it possible to obtain comparable data on a wide range of …
Glaciation In The Logan Quadrangle, Utah, J. Llewellyn Young
Glaciation In The Logan Quadrangle, Utah, J. Llewellyn Young
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
That the higher valleys of the Wasatch Mountains were occupied by Pleistocene glaciers has long been known. King, Hague, and Emmons, geologists of the Fortieth Parallel Survey, the first to undertake a systematic study of any part of the Wasatch Mountains, recognized this fact and their report includes a map which shows in a rough way the extent of the glaciated areas in the Central Wasatch (11 ). In 1909 Atwood (1) made a detailed study of the glacial features of the Central Wasatch in connection with his study of glaciation in the Uinta Mountains. He mapped the deposits of …
Structural Geology At Llallagua, Bolivia, Lowell Moon
Structural Geology At Llallagua, Bolivia, Lowell Moon
Journal of the Minnesota Academy of Science
No abstract provided.
Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene
Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene
Bachelors Theses and Reports, 1928 - 1970
Work was first done on a known section, the south Boulder Section, in order to familiarize the student with the formations. Most of the area was mapped by plane table and telescopic alidade, general features being surveyed by automobile traverse and a pacing traverse.
A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready
A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready
Bachelors Theses and Reports, 1928 - 1970
This paper is a report of a geological survey made of an area of approximately fifty square miles lying Northeast of Whitehall, Montana, in the region of the Golden Sunlight Mine. The survey was made by a field party consisting of twenty-three members of the senior class of the Montana School of Mines.
An Outline Of The Principal Natural Resources Of Nebraska And Their Conservation, George E. Condra
An Outline Of The Principal Natural Resources Of Nebraska And Their Conservation, George E. Condra
George E. Condra Publications
Nebraska is well endowed with important natural resources, such as stone, clay, sand, soil, water, prairie, forests and wildlife. However, soil and water are our basic heritage because they, more than other resources, support native life, agriculture, industry, and social development.
An Outline Of Nebraska's Industries, George E. Condra
An Outline Of Nebraska's Industries, George E. Condra
George E. Condra Publications
The principal industries of Nebraska are summarized into the following groups: mineral, agriculture, manufacturing, transportation and publishing, and trade or mechandizing.
South Moccasin Kaolin Deposit, Walter Everly
South Moccasin Kaolin Deposit, Walter Everly
Bachelors Theses and Reports, 1928 - 1970
Kaolin has never been considered an important economic mineral in Montana. Deposits of Kaolin in this state are not described in the literature and apparently very few deposits have been found.
Life History Of The Ginko Petrified Forest Or The Autobiography Of An Ancient Oak Tree, George F. Beck
Life History Of The Ginko Petrified Forest Or The Autobiography Of An Ancient Oak Tree, George F. Beck
Geological Sciences Faculty Scholarship
An account of a fossilized log at Ginkgo Tree State Park written by the man who discovered the fossil trees and established there were Ginkgo trees in North America in the distant past.
The booklet is written from the perspective of one of the fossilized trees, tracing the geologic forces that led to it becoming a fossil.
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A lower Pleistocene deposit containing fossil vertebrates near Broadwater, Morrill county, Nebraska, has been reported upon by the writers, beginning three years ago. Five fossil quarries have been opened since the site was discovered in 1936.
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
Bulletin of the University of Nebraska State Museum (1924–2023)
The rich and varied nature of the mammalian faunas of the White River Oligocene has been recognized for many years, but the exact geologic succession is only now becoming known. In these faunal assemblages the rodents and lagomorphs appear to have been important elements, perhaps numerically as abundant in the Oligocene as are these same groups at present.
Deep Wells At Lincoln, Nebraska, E. C. Reed, G. E. Condra
Deep Wells At Lincoln, Nebraska, E. C. Reed, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Upper Carboniferous Formations In The Lower Platte Valley, G. E. Condra, O. J. Scherer
Upper Carboniferous Formations In The Lower Platte Valley, G. E. Condra, O. J. Scherer
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Classification Of The Tertiary System In Nebraska, Alvin Leonard Lugn
Classification Of The Tertiary System In Nebraska, Alvin Leonard Lugn
Department of Earth and Atmospheric Sciences: Faculty Publications
This paper represents the results of almost continuous research by the Nebraska State Geological Survey on Tertiary stratigraphy in Nebraska during a perIod of more than 10 years, with special attention to the present acceptable stratigraphic nomenclature. Cogent reasons are presented for the retention of such well-known names as White River, Arikaree, and Ogallala, all now redefined and elevated to group ranking. “Loup Fork” and “Loup River,” "Nebraska beds", and “Republican River" are considered obsolete. The application of fossil seed zones to problems of correlation is noted. The table of Tertiary Formations of Nebraska summarizes the Tertiary stratigraphy in Nebraska.
Correlation Of The Amerada Petroleum Company Well Drilled Near Nehawka, Nebraska, E. C. Reed, G. E. Condra
Correlation Of The Amerada Petroleum Company Well Drilled Near Nehawka, Nebraska, E. C. Reed, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Geology Of Caldwell And Winn Parishes: Including Geologic Maps Of These Parishes., John Huner
The Geology Of Caldwell And Winn Parishes: Including Geologic Maps Of These Parishes., John Huner
LSU Historical Dissertations and Theses
No abstract provided.