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Geology Of The Northern Part Of The Malad Range, Idaho, Drew C. Axtell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rocks of Paleozoic, Tertiary, and Quaternary age are represented in the northern part of the Malad Range. The Paleozoic rocks are represented by thirteen formations that are characterized lithologically by quartzites, shales, and carbonates. The oldest formation in the mapped area of Paleozoic age is the Brigham Formation, and the youngest formation is the Jefferson Formation of late Devonian age.

The rocks of Tertiary age are conglomerates, shales, and limestones and are represented by the Wasatch Formation, the Salt Lake Formation, and boulders. Quaternary rocks include sediments of the Lake Bonneville Group and alluvium.

The faults in the mapped area …

The Influence Of Irrigating With Saline Water On The Energy Status Of Water In Soil And Plant, Rolando H. Braun

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

1. Changes in the energy status of water that occurred in Milville silt loam and in bean (Phaseolus vulgaris L.) plants growing on it , during two consecutive 6-day periods while being irrigated with saline solutions, were studied.
2. Total soil water potential (Ψ soil) (measured with thermocouple psychrometers), matric-potential (Ψ_m) (measured with tensiometers) were considered. In leaf samples, the total water potential (leaf) and the osmotic potential (Ψ_π)--after freezing-- were determined with thermocouple psychrometers; by difference, the pressure potential (Ψ_p) was obtained.
3. There is no evidence of close relationship between changes taking place in …

Movement Of Atrazine In Soil Under Furrow Irrigation, Jyothi Veerabhadrappa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Movement of atrazine in response to furrow irrigations was studied using the samples of Timpanogos silt loam soil. Distribution in soil profile of surface applied herbicide was determined by drawing samples of water extracts through porous cylinders. Atrazine quantity was determined by spectrophotometer.

It was observed that the herbicide found in the water extracts was an indication of the quantity present in the soil. The herbicide moved readily with the applied water. Irreversible thermodynamic model could not be applied because of the initial and final boundary conditions. The pattern of movement was in conformity with the chromatographic theory.

The Interaction Between Water Movement, Solute Uptake, And Respirational Energy In Plant Roots, Mohamed Sadek Tawakol

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sunflower plants (Helianthus annus, var. Russian mammoth) were grown in Hogland nutrient solution. The roots (after being subjected to treatments with either respiratory inhibitors or respiratory stimulators) were used to measure the flux of water J_w, flux of solute J_s , and the rate of respiration Jo.

The thermodynamic theory of irreversible processes was used to examine the interaction between fluxes, and the changes in conductivity under different treatments. The rate equations for a root membrane of unit thickness were developed as:

J_w = L_wwV_w∆p + L_wsRT ln …

The Influence Of Thermo-Gradients Upon Water Movement And Retention In Unsaturated Soils, Jose V. Salazar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Temperature differences of about 5, 10, and 15 V, were applied to uniformly packed and insulated horizontal column of Millville silt loam soil using mean temperatures near 13, 14, 15, 16, 17, 18, 19, 20 and 23.5 C. The temperature distribution along the soil column was determined using copper constantan thermocouples. Soil samples were taken to determine volumetric moisture content, and soil water potential, using the vapor pressure psychometer technique. The thermodynamic flow equation of Taylor and Cary, (1964) was used to calculate the hydro-thermal transfer coefficient (ß) as given by:

-ß = d(μ_w)_T / dlnT

where …

Experiments On The Inactivation Of Zinc By The Mineral Fractions Of The Soil, John J. Hassett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Zinc deficiency, in many cases, is closely related to organic matter decomposition. DeRemer and Smith (1964) studied the effects of decomposing sugar beet tops on the reactions of Zn⁶⁵ in a Portneuf soil. They found that with time the Zn⁶⁵ associated with lime minerals, exchangeable, and water soluble fractions of the soil decreased, while that found with the organic and mineral fractions increased. This increase in the mineral fraction is of particular interest, since the majority of the Zn⁶⁵ was found to be with this fraction after a period of time. They also showed that the increase …

Earthworm Pits

Green Revolution

No abstract provided.

Earthworms: Their Intensive Propagation And Use In Biological Soil Building - Part Vi, Thomas Barrett

Green Revolution

Reprint of section of book Earthworms by Thomas Barrett.

Earthworms: Their Intensive Propagation And Use In Biological Soil Building - Part V, Thomas Barrett

Green Revolution

Reprint of section of book Earthworms by Thomas Barrett.

Stratigraphic Chart Of The Waubansee Group In Nebraska, R. R. Burchett, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Mineralogy Of Coesite And Petrographic Association And Distribution At Meteor Crater, Arizona., Alfred A. Burgoyne

Earth and Planetary Sciences ETDs

Natural coesite, the high density monoclinic polymorph of silica, is found in shocked and melted sandstone at Meteor Crater, Arizona. Structural, morphological, and optical data have been obtained from synthetic coesite crystals and aggregates. Natural coesite occurs as microcrystalline anhedral grains which are unsuitable for the above determinations. In this study the following new data have been obtained for natural and synthetic coesite.

(1) The calculated and observed d spacings and their intensities for both natural and synthetic coesite have been reinvestigated through a 28 range from 10⁰ to 75⁰ for CuKo

(2) Nearly all grains of synthetic …

Earthworms: In Biological Soil Building - Their Intensive Propagation And Use - Part Iv, Thomas Barrett

Green Revolution

Reprint of section of book Earthworms by Thomas Barrett.

Precambrian Well Data In Nebraska, Including Rock Type And Surface Configuration, Marvin P. Carlson

Conservation and Survey Division: Faculty and Staff Publications

This bulletin presents, in tabular form, information relating to the Precambrian surface and includes a configuration map of this surface in Nebraska. The data from all of the 1460 deep tests reaching the Precambrian as of January 1, 1966 are listed. It is anticipated that further studies utilizing this data will be made due to the important influence of the Precambrian surface on later sedimentation and structure and the possibility of minerals of economic importance being present in Precambrian rocks. Specific information for each well and samples, except as noted in the tabulation, are on file and available for study …

Earthworms: Their Intensive Propagation And Use In Biological Soil Building - Part Iii, Thomas Barrett

Green Revolution

Reprint of section of book Earthworms by Thomas Barrett.

Elephant Teeth From The Atlantic Continental Shelf, Frank C. Whitmore Jr., K. O. Emery, H. B. S. Cooke, Donald J. P. Swift

United States Geological Survey: Staff Publications

Teeth of mastodons and mammoths have been recovered by fishermen from at least 40 sites on the continental shelf as deep as 120 meters. Also present are submerged shorelines, peat deposits, lagoonal shells, and relict sands. Evidently elephants and other large mammals ranged this region during the glacial stage of low sea level of the last 25,000 years.

Paleotectonic Investigations Of The Permian System In The United States, Edwin D. Mckee, Stephen S. Oriel, Henry L. Berryhill, Eleanor J. Crosby, Donald A. Myers, George H. Dixon, Marjorie E. Maclachlan, Melville R. Mudge, Edwin K. Maughan, Richard P. Sheldon, Earl R. Cressman, Thomas M. Cheney, Walter E. Hallgarth, Keith B. Ketner

United States Geological Survey: Publications

(A) Allegheny region, by Henry L. Berryhill, Jr

(B) Gulf Coast region, by Eleanor J. Crosby

(C) West Texas Permian basin region, by Steven S. Oriel, Donald A. Myers, and Eleanor J. Crosby

(D) Northeastern New Mexico and Texas-Oklahoma Panhandles, by George H. Dixon

(E) Oklahoma, by Marjorie E. MacLachlan

(F) Central Midcontinent region, by Melville R. Mudge

(G) Eastern Wyoming, eastern Montana, and the Dakotas, by Edwin K. Maughan

(H) Middle Rocky Mountains and northeastern Great Basin, by Richard P. Sheldon, Earl R. Cressman, Thomas M. Cheney, and Vincent E. McKelvey

(I) Western Colorado, southern Utah, and northwestern New …

Roughness Characteristics Of Natural Channels, Harry H. Barnes Jr.

United States Geological Survey: Publications

Color photographs and descriptive data are presented for 50 stream channels for which roughness coefficients have been determined. All hydraulic computations involving flow in open channels require an evaluation of the roughness characteristics of the channel. In the absence of a satisfactory quantitative procedure this evaluation remains chiefly an art. The ability to evaluate roughness coefficients must be developed through experience. One means of gaining this experience is by examining and becoming acquainted with the appearance of some typical channels whose roughness coefficients are known. The photographs and data contained in this report represent a wide range of channel conditions. …

A Revision Of The Bees Of The Genus Andrena Of The Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae), Wallace E. Laberge

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

This paper is the first part of a monograph of the bee genus Andrena in the western hemisphere and treats the subgenus Callandrena. Available data regarding phylogeny, distribution, biology, and flower preferences are presented together with keys to separate the species, diagnoses and descriptions of the species and discussions of geographic variation when applicable. Seventy-nine species and one subspecies are recognized. Sixteen names are relegated to synonymy, one to homonymy and eight are removed from the subgenus Callandrena. The thirty-nine species new to science are: aerifera, aeripes, afimbriata, ardis, auripes, balsamorhizae, beameri, bilimeki, bullata, calvata, dreisbachorum, fulminea, fulminoides, …

New Soils Chief Appointed, Department Of Agriculture, Western Australia

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

The appointment of Mr. S. T. Smith to the position of Commissioner of Soil Conservation and Chief of the Soils Division in the Department of Agriculture was announced last month.

A New Species Of Rhinoceros, Aphelops Kimballensis, From The Latest Pliocene Of Nebraska, Lloyd G. Tanner

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

An uncrushed skull and associated skeletal elements of a very large rhinoceros are the basis for the description of a new species of Aphelops from Frontier County, Nebraska. The major differences are: the skull is much larger in most dimensions than other Aphelops; it has an extremely elevated occipital region in comparison to Aphelops mutilus; the narial notch is retracted to a point perpendicular to the center of molar one; and the teeth are more hypsodont than any other species of this genus. The sediments which yielded the skull and skeletal parts are considered to be Kimballian in …

The Monotypic North American Subgenus Larandrena Of Andrena (Hymenoptera: Apoidea), D. W. Ribble

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

Larandrena contains a single species, A. miserabilis Cresson. This small, common Andrena is found throughout most of the United States and southern Canada in the spring. The subgeneric position, nomenclature, redescription. variation, notes on the biology, parasites, range, seasonal activity and plant host records are included. A. rniserabilis is thought to be an important pollinator of fruit trees.

Citellus Kimballensis, A New Late Pliocene Ground Squirrel, Douglas C. Kent

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

A new fossil sciurid, Citellus kimballensis, is described. This new species was found in the Kimball Formation, uppermost Ogallala (very late Pliocene) at the University of Nebraska State Museum Collecting Locality Cn-1O1, northeast of Sidney, Cheyenne County, Nebraska. Characters of the dentition and skull of C. kimballensis are compared with those of other species of the genus, and with those of Cynomys.

The Brule-Gering (Oligocene-Miocene) Contact In The Wildcat Ridge Area Of Western Nebraska, C. Bertrand Schultz, Charles H. Falkenbach, Carl F. Vondra

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

The contact between the Brule Formation (Oligocene) and the Gering Formation (Miocene) can be readily distinguished in the Wildcat Ridge area, as elsewhere in western Nebraska. At the critical fossiliferous exposures at Castle Rock in Scotts Bluff County, the contact on the south face between the two formations is defined as 129 feet above the base of the "Upper Ash" bed, which corresponds to the upper portion of Darton's (1899, PI. C, Fig. D, following p. 754) "sandy phase" in the upper part of the Brule. Certain key beds in the Gering Formation can be traced laterally from a channel …

Centennial Guidebook To The Geology Of Southeastern Nebraska, R. R. Burchett, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Devonian Of The North-Central Region, United States, C. Collinson, Marv Carlson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Factors Controlling Porosity And Permeability In The Curdsville Member Of The Lexington Limestone, William C. Macquown Jr., Jimmie L. Barr, George T. Hine, Jojok Sumartojo, Edward V. Peck, Franklin D. Thomas

KWRRI Research Reports

Factors controlling the porosity and permeability of the Curdsville Limestone Member of the Lexington Limestone of Middle Ordovician Age in the Blue Grass Region of Kentucky are geological.

Microstratigraphic analysis had led to the division of the lower Lexington Limestone, consisting principally of the Curdsville Member into three beds which may be subdivided into "zones" made up of several lithologic types and sub-types. Lower, middle, and upper bed characteristics are helpful in determining the regional depositional history in the progressively transgressing Curdsville sea. Paleogeography of Curdsville time has been determined by delineation of two local facies: (1) a carbonate bank--shoal …

Stratigraphy Of The Lower Morrison Formation Along The Defiance Monocline, New Mexico And Arizona, Robin Clair Lease

Earth and Planetary Sciences ETDs

Along the western border of the San Juan Basin a prominent cliff-forming, orange sandstone has been incorrectly mapped as a part of the Recapture Shale Member of the Morrison Formation. This stratigraphic unit is here given the informal name, Beautiful Mountain member, and has stratigraphic continuity with the Salt Wash Sandstone Member in Red Rock Valley and the Cow Springs Sandstone in Todilto Park, New Mexico. The Recapture Shale Member is restricted to the pink and pale-green, slope-forming sandstone above these orange sandstone beds and below the Westwater Canyon Sandstone Member.

The Beautiful Mountain member is predominantly a lenticularly bedded, …

Nebraska Groundwater Level (Decline & Rise), 1967

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Early Silurian Brachiopods From The Subsurface Of Southeastern Nebraska, M. P. Carlson, A. J. Boucot

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Early Silurian Brachiopods From The Subsurface Of Southeastern Nebraska, M. P. Carlson, A. J. Boucot

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.