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Articles 58471 - 58500 of 59349
Full-Text Articles in Entire DC Network
Glacial Geology Of Wabash County, Indiana, William J. Wayne, William D. Thornbury
Glacial Geology Of Wabash County, Indiana, William J. Wayne, William D. Thornbury
Department of Earth and Atmospheric Sciences: Faculty Publications
Most of the topographic features of Wabash County are of glacial origin or are glacial deposits eroded by postglacial streams. Shales, limestones, and dolomites, all Silurian, are exposed only along some of the deeper valleys. Four major rivers and six smaller streams in Wabash County flow in glacial sluiceways. Only the Eel and Wabash sluiceways carried large quantities of melt-water. The Eel River valley train occupies an interlobate position, and the Wabash Valley bears evidence of its roles as a sluiceway and as an outlet for glacial Lake Maumee in late Cary time. Three topographic areas comprise the upland part …
Geology Of Ouachita Parish, Louisiana., Kia Kang Wang
Geology Of Ouachita Parish, Louisiana., Kia Kang Wang
LSU Historical Dissertations and Theses
No abstract provided.
Recent Foraminiferal Faunules From The Louisiana Gulf Coast., Harold Veral Andersen
Recent Foraminiferal Faunules From The Louisiana Gulf Coast., Harold Veral Andersen
LSU Historical Dissertations and Theses
No abstract provided.
Mudlumps At The Mouths Of The Mississippi River., James P. Morgan
Mudlumps At The Mouths Of The Mississippi River., James P. Morgan
LSU Historical Dissertations and Theses
No abstract provided.
Lagoon Data (1950), Walter A. Lawrance
Supplement To Odor Report (1950), Walter A. Lawrance
Supplement To Odor Report (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Odor Report (1950), Walter Lawrance
Sulphite Pulp Production (1950), Walter A. Lawrance
Sulphite Pulp Production (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Analytical Data (1950), Walter Lawrance
Press Reports (1950), Walter A. Lawrance
Addition Of Sodium Nitrate (1950), Walter A. Lawrance
Addition Of Sodium Nitrate (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Nebraska Agricultural Experiment Station: Historical Research Bulletins
A survey of earthworm population under different cropping systems was made under stubble mulch farming and where the residue was plowed under. The influence of earthworms on some of the important physical and biological properties of the soil was studied. Their role in the decomposition of crop residues was also determined.
The Pleistocene Geology Of The Middle ·Portion Of The Elkhorn River Valley, W. D. Frankforter
The Pleistocene Geology Of The Middle ·Portion Of The Elkhorn River Valley, W. D. Frankforter
University Studies (University of Nebraska) (1888–1984)
The present report is a physiographic and paleontologic approach to the Pleistocene history of a portion of the Elkhorn River Valley in parts of Dodge, Cuming and Stanton counties in northeastern Nebraska. The area is important for correlation of deposits between the glacial and periglacial regions. Some of the critical stratigraphic units used for correlation in the Pleistocene of these regions are present in close association with the tills and contain fossils which make possible reliable statements on contemporaneity of deposits. The subsequent geologic history and present physiographic expression of this area have been greatly controlled and influenced by the …
Czarina Mine, Butte, Montana, Prodyot K. Das
Czarina Mine, Butte, Montana, Prodyot K. Das
Bachelors Theses and Reports, 1928 - 1970
The Czarina mine operated for a short time during the last Great War, lies in the southwestern corner of the Butte mining district of Montana. This area was worked during the extensive silver mining in Butte during the 1890's, and was prospected from time to time in later years. The orebody of the mine consists of fissure fillings of manganese mineral oxidized to a certain depth, in a fracture zone of the Boulder Batholith.
Mineralization Of The Bonanza Mine, H. M. Callaway
Mineralization Of The Bonanza Mine, H. M. Callaway
Bachelors Theses and Reports, 1928 - 1970
The Bonanza mine of the Emery mining district in Powell County is on the largest veins in the area, and is developed to a depth of 680 feet by an incline shaft following the dip of the structure. Sulfide ores carrying gold and silver values are mined throughout the area which is easily accessible by road from Deerlodge, Montana, ten miles west of the district.
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties, Vincent H. Dreeszen
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties, Vincent H. Dreeszen
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Montana Talc; Problems In Physical Properties, E. C. Armstrong
Montana Talc; Problems In Physical Properties, E. C. Armstrong
Bachelors Theses and Reports, 1928 - 1970
General information on talc, including foreign and United States occurrences, origin, and uses is covered. Montana deposits are discussed in greater detail as to location, geology, mineralogy, and mining. Studies of talc by petrographic and x-ray methods and an experiment to determine the porosity are described and discussed.
Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson
Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson
Bachelors Theses and Reports, 1928 - 1970
Although the majority of geologic structures in Montana have been tested in the search for petroleum, only a few have been found to contain commercial quantities of either oil or gas, and with each successive dry hole, producers are becoming more and more wary of investing capital in new wells located on structural features alone. It is apparent that if new oil and gas fields are to be found in Montana, exploration must be done on the basis of something other than structure, or combined with structure.
Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick
Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick
Bachelors Theses and Reports, 1928 - 1970
This paper, a study of the fauna of the Pilgrim formation at South Boulder Creek in southwestern Montana, represents a laboratory study of the fossil specimens collected by Dr. Alvin Hanson during the summer of 1949. The scope of investigation includes identification and classification of the faunas, their stratigraphic relationship and zonal subdivisions.
Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds
Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds
Bachelors Theses and Reports, 1928 - 1970
One of the many secrets which planet Earth has jealously kept from its inhabitants is the microscopic fossil form known as the foraminifer. It hides in common shale, awaiting the patient and painstaking searcher. In furthering the study of the foraminifera of the Colorado group of formations in Northern Montana, the United States Geological Survey has collected several suites of shale samples from the Sunburst Dome, five to ten miles south of the Canadian border and twenty-five miles north of the city of Shelby, Montana.
A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel
A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel
Bachelors Theses and Reports, 1928 - 1970
If, in a system at a given temperature, there should occur a decrease in free energy and this decrease does not take place, then the resulting condition of the system is termed supercooling. A common example of the phenomenon is found in the liquid-to-solid transition of many substances, when the temperature of the liquid may be lowered below its freezing point without solidification. Similar phenomenon occurs in the gas-to- liquid, gas-to-solid, and polymorphic transformations.
Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre
Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre
Bachelors Theses and Reports, 1928 - 1970
In the past 75 years, the scenic area about the headwaters of the great Missouri River has attracted the attention of many leading stratigraphers and paleontologists; for in this area bountiful outcrops of Paleozoic fossil horizons are available for study and correlation.
Mottling In The Meagher Limestone, Ronald J. White
Mottling In The Meagher Limestone, Ronald J. White
Bachelors Theses and Reports, 1928 - 1970
The middle Cambrian Meagher limestone of southwest Montana is characterized by mottled members that are finely crystalline in the tan part and microcrystalline in the dark matrix. As seen in the literature, similar mottled limestones are thought to be an arrested stage in the dolomitization, or alteration of limestones.
A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young
A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young
Bachelors Theses and Reports, 1928 - 1970
The batholith is dated as Paleocene or early Eocene. The rocks of the batholith in this area are classified as ranging from quartz-granodiorite to granodiorite. Variation in mineral content causes a chance in color tone from light to dark gray. swarms of inclusions occur in the igneous rock near the contact.
Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson
Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson
Bachelors Theses and Reports, 1928 - 1970
Shale is known to be a source-bed for oil, and the Colorado shale which is over 2000 feet thick in places may well be the source for the oil which is now accumulated in the included or closely associated sandstones. A thorough study of the fossil content may not only be helpful in correlation of Cretaceous sediments, but it likewise may be the starting point for studies -which could eventually lead to the discovery of unknown mineral deposits.
A Mineral Dressing Study Of The Benefication Of Philipsburg Manganese Carbonate Ore, Frank M. Antonioli
A Mineral Dressing Study Of The Benefication Of Philipsburg Manganese Carbonate Ore, Frank M. Antonioli
Bachelors Theses and Reports, 1928 - 1970
The beneficiation of rhodochrosite ore to the extent that it is suitable for nodulizing and subsequent use in the steel industry is intriguing. Such ores from certain mines is relatively easy to beneficiate, but the rhodo-chrosite ore from several deposits of the Philipsburg district has never been successfully up-graded by any of the several known beneficiating methods.
The Isothermal Transformation Curve For S.A.E. 6150, Charles Arentzen
The Isothermal Transformation Curve For S.A.E. 6150, Charles Arentzen
Bachelors Theses and Reports, 1928 - 1970
More than 3000 years ago, men began quenching and tempering tools to improve their physical properties. The ancient people found that iron was easier to shape and form in a heated condition. Charcoal was used as the fuel, and when the shaping process was completed, the smiths cooled the piece in the most obvious way, quenching in water. Quite unintentionally, these people stumbled on the process for improving the properties of iron, and the art of blacksmithing began.
Physiographic Surfaces And Weathering Near Butte, Gordon B. Brox
Physiographic Surfaces And Weathering Near Butte, Gordon B. Brox
Bachelors Theses and Reports, 1928 - 1970
Three cycles of erosion have modified the Boulder batholith. The earliest cycle produced a peneplaination that has been largely obliterated by a partially completed intermediate cycle, and the recent cycle now in progress.
An Investigation Of The Gallium-Indium Binary System, Allen D. Kennedy
An Investigation Of The Gallium-Indium Binary System, Allen D. Kennedy
Bachelors Theses and Reports, 1928 - 1970
Twenty-four alloys, at 5 weight per cent or smaller intervals, were investigated by the thermal method. Very low temperatures had to be attained, because most of the alloy melts supercooled remarkably. Analysis showed only a liquidus and solidus line, and the solidus temperature was the same for each alloy.
Fluorescence Of Oil Well Cuttings Under The Action Of Ultraviolet Light As Pertaining To Depth Of Wells Investigated, Linus S. Drees
Fluorescence Of Oil Well Cuttings Under The Action Of Ultraviolet Light As Pertaining To Depth Of Wells Investigated, Linus S. Drees
Master's Theses or Doctor of Nursing Practice
In 1937, Lippert (6) published a survey of the radioactive properties of subterranean waters of Ellis County, Kansas. In 1940, Bell, Goodman, and Whitehead (1) reported a survey on the radioactivity of sedimentary rocks and associated petroleum. In 1944, w. L. Russell (10) reported on the total gamma ray activity of sedimentary rocks as indicated by Geiger-Mueller Counter determination. Lastly, in 1949, M. W. Johnston (5) made a survey of radioactivity of oilwell drilling fluid with depth of wells. Since Johnston's work cited above included only producing wells it was thought worthwhile to continue this investigation to include wells both …