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Geology Of The Southwestern Part Of The Randolph Quadrangle, Utah-Wyoming, Steven C. Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A detailed study of the southwestern part of the Randolph quadrangle was undertaken in view of the fact that Richardson (1941) mapped a large area of undifferentiated Ordovician rock. Therefore, the purposes of this investigation are: (1) to prepare a more detailed geologic map of the south­western part of the Randolph quadrangle (Plate 1), (2) to describe the struc­ture, stratigraphy, and geologic history of the area, and (3) to relate the geology to adjacent areas.

The Interaction Of Water And Salt Flow In Unsaturated Soils, Mahmoud Hassan Abd-El Aziz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The movements of salt and water, particularly in fairly dry soils or compacted shales, are important processes in both agronomic studies and hydraulics of deep ground water which is important in the location of oil.

Effects Of Temperature On Moisture Conductivity In Unsaturated Soil, Richard O'Bannon Meeuwig

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water moves in soil in response to potential gradients. The basic equation for this movement is the generalized v=-K▽Φ in which v is volume of water passing through a unit area in unit time, K is the conductivity coefficient, ▽, is the gradient operator (vector), and ▽Φ is the potential gradient.

Influence Of Fertilizer Treatment On The Response Of Sugar Beet Yield To Moisture, Samad Farzanfar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many factors that influence the growth and quality of sugar beets behave in one way under one set of conditions and in quite another under other conditions. Consequently, these factors should be considered together under a dynamic situation to find their interrelations and their influence on sugar beet yield.

This study is a statistical analysis of the interaction of fertilizer and soil moisture potential with the yield of sugar beets grown in a crop rotation under different regimes of irrigation conducted over a period of seven years.

The data are available for the years 1949 through 1956, from an intensive …

Temperature Dependence Of Soil-Moisture Potential, Jacob Willem Kijne

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teachers have noticed that children draw only those objects which they know by name. Doubtless the adult has a similar tendency, exemplified by the researcher, to limit his observations or to relate them to that which can be expressed in the terminology of an existing or newly developed theory. In this thesis the data obtained from studies of the temperature and pressure dependence of the relative vapor pressure over moist soil samples are analyzed by a thermodynamic approach. Not all of the results can be explained completely by means of this tool. Natural systems, such as a moist soil, are …

Water Levels In Observation Wells In Nebraska, 1963, Philip A. Emery, Mildred M. Malhoit

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Petrography Of A Cyclical Sequence, Upper Madera Limestone, Sandia Mountains, New Mexico, Fred Yale

Earth and Planetary Sciences ETDs

Chemical determinations of calcium and magnesium carbonates, iron, Kjeldahl nitrogen, and sulfate with supplementary petrographic thin-section and insoluble-residue studies and differential thermal analyses were used to study a Virgilian sedimentary cycle in the upper Madera Limestone of New Mexico. In 120 meters of section 4 cycles were recognized; one of these was studied in detail. Cyclic subsidence and subsequent basin filling produced a sequence of gross environmental changes accomplished by organisms in a definite ecological succession. Biologic communities were progressively modified by the changing marine sedimentary cycle. The cycles of the upper Madera Limestone begin with a lower fusulinid claystone, …

Slope Deposits Of The Pennsylvanian Haymond Formation, Marathon Region, Texas, Walter E. Dean Jr.

Earth and Planetary Sciences ETDs

The Haymond Formation of the Marathon basin, Texas consists mainly of a sequence of more than 12,000 siltstone-shale couplets which, combined with the similar couplets of the older Tesnus Formation, form a sequence of "flysch" sediments more than 10,000 feet thick deposited on the eastern slope of the subsiding Llanoria geosyncline. The Haymond Formation contains no diagnostic fossils; its age is known only as Lower Pennsylvanian, probably Atokan.

A Comparison Between The Direction Of Tornado Movement And The Associated 500 Mb. Level Wind Direction, Allen B. Johnson

Journal of the Minnesota Academy of Science

An investigation to ( 1) determine the 500-milli-bar level weather patterns associated with tornadoes moving from northwest toward southeast and from southwest toward northeast and, (2) show the significance of the contrasts between the 500-mb. level weather patterns of the two tornado types. A very high relationship between the direction of the 500-mb. level winds and the tornado direction was substantiated by a coefficient of correlation of +0.88. The typical 500-mb. level low center associated with the northwest to southeast type tornado was located over Hudson Bay about 1300 miles north-northeast of the tornado area. The low center associated with …

Variation In Perthitic Microcline From A Zoned Pegmatite, Terry E. Tullis

Journal of the Minnesota Academy of Science

Quantitative microscopic and chemical anaylses of 12 specimens of microcline, most of them perthitic, from the zoned Hugo pegmatite in the Black Hills near Keystone, South Dakota, have yielded data that can be used to estimate the temperatures of crystallization at successive stages in the formation of the pegmatite. The determined temperatures of crystallization range from 565°C in zone 3a, near the margin of the pegmatite, to 280°C in zone 7, the core.

Treating Severe Saltland, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE illustration shows a large area of severely salt affected land near Narembeen.

Before treatment, sheep had access to the area and in summer broke the topsoil into a fine powder which lifted to form dust storms with every good breeze.

Soil Erosion And Farm Water Supplies, J C. Grasby, J. E. Watson

Journal of the Department of Agriculture, Western Australia, Series 4

Water supplies for stock have an important influence on farm management.

In this article Soil Conservation Advisers J. C. Grasby and J. E. Watson discuss problems of soil erosion and farm water supplies.

Opposed Disc Plough Furrows Hard Kimberley Soils, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE work of reclaiming the eroded areas of the Ord River catchment has posed special problems for field staff of the Department of Agriculture engaged on this large scale project.

Thousands of miles of furrows must be contour-ploughed and seeded in extremely hard ground over big areas of eroded country.

New Species Of Proctophyllodes From Bulgaria (Sarcoptiformes, Analgoidea), Warren T. Atyeo, I. D. Vassilev

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

Two new species of feather mites are described: Proctophyllodes tenericaulus from Turdus viscivorus L. (Turdidae) and Galerida cristata (L.) (Alaudidae) and Proctophyllodes emberizae from Emberiza melanocephala Scopoli and E. hortulana (L.) (Fringillidae).

Prodromus Of American Bees Of The Genus Andrena (Hymenoptera, Apoidea), Wallace E. Laberge

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

Keys to the females and males and diagnoses of the American subgenera of the genus Andrena are presented in this paper. Previously described subgenera recognized in this work are as follows: Callandrena Cockerell, Scaphandrena Lanham, Plastandrena Hedicke, Parandrena Robertson, Dactylandrena Viereck, Andrena Fabricius, Iomelissa Robertson, Oligandrena Lanham, Hesperandrena Timberlake, Micrandrena Ashmead, Gonandrena Viereck, Opandrena Robertson, Cnemidandrena Hedicke, Simandrena Perez, Thysandrena Lanham, Taeniandrena Hedicke, Ptilandrena Robertson, Trachandrena Robertson, Xanthandrena Lanham, Diandrena Cockerell, Leucandrena Hedicke, Melandrena Perez, Gymnandrena Hedicke, Scoliandrena Lanham, Onagrandrena Linsley and MacSwain. The following five new subgenera are described: Eremandrena, Larandrena, Tylandrena, Geandrena, Chaulandrena.

A Review Of The Mites Of The Family Pseudocheylidae Oudemans, 1909 (Acarina, Prostigmata), Edward W. Baker, Warren T. Atyeo

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

Four genera and ten species are included; these are: Pseudocheylus biscalattts Ber1ese, 1888, P. americanus (Ewing), 1909, Stigmocheylus brevisetus Berlese, 1910, Anoplocheylus europaeus (Berlese), 1910, A. clavatus, n. sp., A. aegypticus, n. sp., A. protea (Womersley), 1935, Neocheylus natalensis Tragardh, 1906, N. nidcolus Lawrence, 1954, and N. collis, n. sp.

Tarsocheylidae, A New Family Of Prostigmatic Mites (Acarina), Warren T. Atyeo, Edward W. Baker

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

The new family is based on two genera, Tarsocheylus Berlese, 1904 and Hoplocheylus, new genus. The species included are: Tarsocheylus paradoxus Berlese, 1904, Hoplocheylus atomarius (Berlese), 1913, H. johnstoni, n. sp., H. aethiopicus (Cooreman), 1951, H. longispinus, n. sp., and H. cliscalis, n. sp.

Sulfur Fertilizers For Alfalfa Production In Nebraska, R. L. Fox, A. D. Flowerday, F. W. Hosterman, H. F. Rhoades, R. A. Olson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In order to elaborate all aspects of the sulfur problem in alfalfa production, a series of field, greenhouse and laboratory experiments was initiated to determine: 1. The influence of sulfur fertilization on the yield of alfalfa in Nebraska. 2. The influence of sulfur fertilization on the protein, vitamin A, and sulfur contents of alfalfa. 3. The sulfur supplying capacities of various soils under field and greenhouse conditions. 4. The sulfur content of precipitation at widely scattered points in Nebraska. 5. Soil properties associated with sulfur deficiency. 6. Optimum methods for estimating the sulfur status of soils by soil testing. The …

Lower Paleozoic Chitinozoans And Scolecodents From North Dakota, Douglass H. Morgan

Theses and Dissertations

Chips from cores of the Red River and Stony Mountain Formations of Ordovician age and the Dawson Bay Formation of Devonian age in North Dakota were taken at three-foot intervals, dissolved in acid, and the residue examined for insoluble, pseudochitinous microfossils. Chitinozoa, an extinct order of rhizopod protozoans, were found in abundance along with lesser numbers of scolecodonts, the mouth parts of polychaete worms. Because the study was restricted to the core available at the North Dakota Geological Survey, which rarely included complete sections of the formations, a complete picture of the distribution of these forms must await the more …

Study Of The Ste. Genevieve Formation At Selected Localities In Southern Illinois And Western Kentucky, Mahlon Jack Apgar Reinhard

Masters Theses

"The carbonate rocks of the Mississippian Ste. Genevieve Formation were studied megascopically in four quarries--Cave in Rock, Franklin, Three Rivers, and Fredonia Valley--within a small area of the Illinois-Kentucky fluorspar district and in a drill-core from the Cave in Rock Quarry. The rocks were studied microscopically in seventy-four thin sections prepared from samples from the quarries and the drill-core. The Ste. Genevieve Formation is typically an extremely oolitic, fragmentally fossiliferous limestone which is very light gray to white. The megascopic descriptions of the quarry exposures are presented as measured sections and columnar sections. A detailed log of the drill-core is …

Crossings For Channels And Drains In The Ord River Area, K S. Cole

Journal of the Department of Agriculture, Western Australia, Series 4

ON farms irrigated by surface methods it is essential to provide crossings over channels and drains.

These crossings must be wide and strong enough to take the biggest farm machinery.

Microfacies Analysis Of The Duperow Formation In The Beaver Lodge Field, Williams County, North Dakota, Albert D. Pernichele

Theses and Dissertations

This investigation is a petrographic study of a composite section from the Duperow formation in western North Dakota in which seven cyclic microfacies are described and environmentally evaluated. The microfacies are:

1. Anhydrite-dolomite microfacies. Chemically precipitated cryptocrystalline calcite.

2. Micrite microfacies: Chemically precipitated, structurless cryptocrystalline calcite.

3. Saccharoidal dolomite microfacies. Microgranular dolomite representing dolomitized limestone .

4. Pelmicrite-pelletiferous micrite microfacies. Pelletoidal grains of cryptocrystalline calcite and small amounts of fossil material in a matrix of cryptocrystalline calcite.

5. Fossiliferous micrite-biomicrite microfacies. Fossil material in a matrix of cryptocrystalline calcite.

6. Pelsparite microfacies. A loo e framework of pelletoidal grains and …

Dimension Stone In Arkansas, Charles G. Stone, William J. Crouch

Journal of the Arkansas Academy of Science

No abstract provided.

Dicalcium Silicate (Brown Mud) As An Agricultural Liming Material, Lyell Thompson, V. H. Ledbetter

Journal of the Arkansas Academy of Science

No abstract provided.

New Lentil In Upper Fayetteville Formation, John D. Taylor

Journal of the Arkansas Academy of Science

No abstract provided.

Planning New Farm Dams : Excavated Earth Tanks, J E. Watson, J. C. Grasby

Journal of the Department of Agriculture, Western Australia, Series 4

A GOOD farm dam is a valuable asset, and well worth its cost, but there are many aspects to consider when a new dam is required. Careful planning with adequate testing and checking will help to get the best value for money and reduce the chance of costly failures.

This article discusses these aspects in relation to the excavated earth tank type of dam.

Stratigraphic Sequences In The Pennsylvanian Of Nebraska And Their Relationships To Cyclic Sedimentation, E. C. Reed, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nature And Lateral Variation Of Lost Rock Limestone In The Tri-State Zinc-Lead District., Adnan A. Saadallah

Masters Theses

"The nature and lateral variation of a host rock limestone in the Tri-State zinc-lead district were petrographically studied within a single horizon, the M bed. This bed is a massive crinoidal limestone in the Tri- State district of southwestern Missouri, northeastern Oklahoma and southeastern Kansas and is a part of the Mississippian Keokuk Formation.

One hundred and twenty specimens from this bed were collected underground from six pull drifts in five mines: West Side, Grace B, Big John, Little Greenback, and Mudd Mines. The specimens were collected at regular intervals, usually ten to twenty feet, beginning at the edge of …

Petrology And Mineralogy Of Certain Portions Of The Fredericktown Deposits, Farouk El Baz

Doctoral Dissertations

"The Fredericktown area is part of the 'Lead Belt' district of southeastern Missouri, the major lead-producing region in the world for fifty years. The district is a typical example of the Mississippi Valley Type deposits. The ores occur in Upper Cambrian sediments overlying Precambrian rocks.

The Fe-Cu-Pb-Zn (-Co-Ni) - sulphide deposits of Fredericktown occur over a few square kilometers in sediments overlying two 'granite knobs'. The sedimentary units lap upon and pinch-out against these buried basement hills.

The basal sedimentary unit, the Lamotte Formation, is a time-transgressive, marine, submature orthoquartzite. It contains a Boulder Bed at the base or at …

Stratigraphy Sedimentation And Petroleum Possibilities Of The Middle Ordovician (Kimmswick-Galena) Rocks Of Missouri, Illinois And Iowa, Krishna Kant Misra

Doctoral Dissertations

"Detailed surface and subsurface studies of the Kimmswick Limestone and the Galena Formation of Middle Ordovician age in eastern Missouri, western Illinois, and southeastern Iowa were conducted in order to examine their stratigraphic relations, geological history, environment of deposition, and petroleum possibilities.

The main objective of this study was to seek a stratigraphic subdivision of the Kimmswick Limestone in Missouri, based on its gross lithology and thin section study, and its correlation with the Galena Formation in Illinois and Iowa. As a result of this study, based on the examination of twelve surface sections and 92 thin sections a three-fold …