Physical Sciences and Mathematics Commons^™

Determination Of Optimal Timing Of Poultry Waste Disposal By Meteorological, Hydrological, And Water Quality Modeling Techniques, D. R. Edwards, T. C. Daniel

Technical Reports

Approximately one million Mg of broiler litter were generated in conjunction with Arkansas' 1989 broiler production. Common practices for disposal of the waste have the potential to damage the quality of downstream rivers and lakes. This possibility is enhanced due to the concentration of broiler production in areas of the state with shallow soils, steep slopes, and limited suitable disposal area. Since the risk of pollution is greatest immediately following disposal and increases with rainfall depth and intensity, adverse water quality impacts may be mitigated by timing the application to coincide with low probability of surface losses of the nutrients …

Water Quality As Affected By Pesticides In Rice Production, W. G. Johnson, T. L. Lavy, J. D. Mattice, B. W. Skulman, R. E. Talbert, R. J. Smith

Technical Reports

Studies were conducted to determine the environmental persistence of the rice pesticides triclopyr, 2,4-D, benomyl and quinclorac. Triclopyr half-lives ranged from <7 d to >100 d depending on depth within the soil profile and clay content. Triclopyr persistence increased as depth within the profile increased and clay content increased. The benomyl metabolite MBC was present at greater than 50% of the initial amount after 9 months in the field. In simulated carryover field studies quinclorac exhibited the greatest potential for injury to subsequent rotational crops. Cotton and soybean growth was reduced when planted at four weeks after quinclorac application. The adsorption of triclopyr …

Determination Of The Abient Toxicity Of The Tailwater Of Nimrod Lake, John T. Knight

Technical Reports

The objective of this research was to determine if ambient toxicity exists in the receiving stream below a reservoir in which water from the hypolimnion is released. The Ceriodaphnia 7-day test was utilized to determine if toxicity existed. This test is routinely used in the monitoring of municipal and industrial effluent. It has also been utilized in determining if ambient toxicity exists within receiving streams. Nimrod Lake is a flood control impoundment on the Fourche LaFave River in west central Arkansas. The literature suggest that during stratification the hypolimnetic release contains high levels of iron, manganese, ammonia and sulfide during …

The Association Of Water Quality Parameters, Geological Substrates And Periphyton Community Structure, Richard L. Meyer, Julia Christensen Eichman

Technical Reports

This research was designed to understand the structure of epilithic diatom assemblage of a first-to-third order stream system which has minimal variance in nutrient concentration, but significant differences in geomorphological character. The primary objective was to determine the importance of geological substrate on the structure of the diatom assemblages. The second objective was to examine the effect of flow on these assemblages, and the third part of the research was to develop a seasonal model of temporal and spatial annual succession. The temporal and spatial models represent the effect of seasons, stream order, substrate characteristics, storm events, and periods of …

Basement Control On The Development Of Selected Michigan Basin Oil And Gas Fields As Constrained By Fabric Elements In Paleozoic Limestones, Robert Thomas Versical

Masters Theses

Hydrocarbon bearing structures in the Paleozoic section of the Michigan basin possess different structural styles and orientations. Quantification of the direction and magnitude of shortening strains by applying a calcite twin-strain analysis constrains the mechanisms by which these structures may have developed. The calcite twin-strain analysis and fracture orientations in Paleozoic rocks indicate that the mean direction of compression controlling structural development ranged from SE-NW to nearly E-W. This direction of compression nearly parallels the majority of structures in the basin, and provides insight into their origin.

The structural geometries of fields considered in this study can be explained by …

Facies Analysis And Diagenesis Of The Lower Engadine Group And The Manistique Group In Manistee, Mason And Oceana Counties, Michigan, Karen S. Mater

Masters Theses

Three lithofacies in the Lower Engadine Group, and four lithofacies in the Manistique Group were identified. Facies patterns suggest a transgression during deposition of the Manistique Group and Lower Engadine Group.

Environments of deposition were determined by analysis of facies found in the Lower Engadine and Manistique Groups using available cores, petrophysical logs, and well cuttings. The diagenetic sequence of events was identified using thin sections.

Diagenesis has greatly altered original fabric and porosity. Hydrocarbon accumulation in these units is dependent on facies distribution, diagenesis, and structural features.

The Aquatic Macroinvertebrates Of The White River National Wildlife Refuge, Steve W. Chordas Iii, George L. Harp

Technical Reports

The primary purpose of this study was to survey the diversity of the aquatic macroinvertebrates of the White River National Wildlife Refuge (WRNWR). Determining relative abundance and distributional and seasonal patterns were secondary objectives. No comprehensive investigations of the WRNWR aquatic macroinvertebrates had been conducted previously, and it was hypothesized that this relatively undisturbed area may serve as a refugium. Further, this study provides base line data by which management programs can be composed. Thirty sampling stations were established within the WRNWR. Samples were collected from north to south at a basic rate of five stations per month. Revisit collections …

Ua66/8/3 Annual Report, Wku Geography & Geology

WKU Archives Records

Annual report created by and about WKU Geography & Geology.

Reply [To “Comment On ‘Topographic And Volcanic Asymmetry Around The Red Sea: Constraints On Rift Models’”], Timothy H. Dixon, Erik R. Ivins, Brenda J. Franklin

School of Geosciences Faculty and Staff Publications

No abstract provided.

The Fracture Of Ice On Scales Large And Small: Arctic Leads And Wing Cracks, E. M. Schulson, W. D. Hibler

Dartmouth Scholarship

From observations and calculations of crack patterns in ice, it is suggested that a similar mechanism may account for cracking over a wide range of scales.

Effects Of The Conservation Reserve Program On Selected Wildlife Populations In Southeast Nebraska, Justin W. King

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Origins Of Low-Angle Normal Faults Along The West Side Of The Bear River Range In Northern Utah, Jon E. Brummer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper presents new interpretations of two normal-slip, low-angle faults near Smithfield and Richmond, Utah. The faults have previously been interpreted as landslides, gravity slides, slide blocks, and depositional contacts. Recent work in the Basin and Range province allows new interpretations concerning the origins of the low­-angle faults.

Working hypotheses used to interpret origins of the faults are classified as folded thrust fault, rotated high-angle normal fault, gravity slide, listric normal fault, and low-angle normal fault. Among these general categories are several subhypotheses. The evaluation of each hypothesis includes a description of the geologic requirements of the hypothesis, a comparison …

Possible Pan-African Metavolcanics In The Ödemi̇ş, Submassif Of The Menderes Massif, Western Turkey, Osman Candan, Nejat Kun

Bulletin of the Mineral Research and Exploration

No abstract provided.

Petrographical Study Of The Zinc-Lead Deposits In The Bolkardağ (Ulukişla-Ni̇ğde) District, Sedat Temur

Bulletin of the Mineral Research and Exploration

No abstract provided.

Petrology Of The Pliocene Volcantcs Around Muş Se, Anatolia, Ahmet Türkecan

Bulletin of the Mineral Research and Exploration

No abstract provided.

Removal Of Electromagnetic Coupling Effect From Ip Phase Data, İlyas Çağlar

Bulletin of the Mineral Research and Exploration

No abstract provided.

Two Lithotectonic Boundaries In Western North Carolina: Geologic Interpretation Of A Region Surrounding Sylva, Jackson County, Michael Joseph Quinn

Masters Theses

Understanding the geology of any region begins with the construction of high-quality geologic maps. As maps for a specific region are revised in greater detail, geologic understanding is improved. This study involved detailed geologic mapping (at the scale of 1 : 24,000) of a portion of the southern Appalachian Blue Ridge that was previously only mapped by reconnaissance. It is hoped that the research herein will add to the present understanding of the Blue Ridge province and of the entire Appalachian orogenic belt.

During the course of field mapping, three lithotectonic units were divided, each separated from the others by …

An Introduction To The Global Positioning System And Some Geological Applications, Timothy H. Dixon

School of Geosciences Faculty and Staff Publications

Receivers equipped to measure dual frequency carrier phase signals from satellites of the Global Positioning System (GPS) have been capable, under special conditions, of determining relative horizontal positions among stations separated by one to a few hundred kilometers with a precision of one to several millimeters since the early 1980s. The major obstacles to making this capability routine, extending it to all parts of the globe, and extending it to longer station separations, have been equipment cost, limitations in the GPS satellite constellation, arduous data analysis, uncertainties in satellite orbits, uncertainties in propagation delays associated with variable tropospheric water vapor, …

Preliminary Determination Of Pacfic-North America Relative Motion In The Southern Gulf Of Calfornia Using The Global Positioning System, Timothy H. Dixon, G. Gonzalez, S. M. Lichten, D. M. Tralli, G. E. Ness, J. P. Dauphin

School of Geosciences Faculty and Staff Publications

Global Positioning System (GPS) data from experiments conducted in 1985 and 1989 in the southern Gulf of California, Mexico, allow a determination of relative motion between the Pacific and North American plates. The data indicate motion of Cabo San Lucas on the Pacific plate relative to North America at a rate of 47±7 mrn/yr and azimuth of 57±6° west of north (1σ errors), equivalent within uncertainties to the NUVEL-1 global plate motion model.

Tectonic Features And Structural Evolution Of The Yalvaç-Yarikkaya Neogene Basin, Fuzuli Yağmurlu

Bulletin of the Mineral Research and Exploration

No abstract provided.

Facies And Depositional Environments Of The Miocene Sedimentary Sequence In North Of Torbali, Izmir, Uğur İnci̇

Bulletin of the Mineral Research and Exploration

No abstract provided.

Ki̇seci̇k (Hatay) Hydrothermal Gold Veins, Ahmet Çağatay, İ. Sönmez Sayili, Yavuz Ulutürk, M Ziya Ateş

Bulletin of the Mineral Research and Exploration

No abstract provided.

Economic Potential Of Residual Deposits In Peneplanated Areas In Turkey, Kenan Tüfekçi̇

Bulletin of the Mineral Research and Exploration

No abstract provided.

Shoshonitic, Monzonitic Pluton Near Murmano, Eastern Central Turkey - A Preliminary Note, H.P. Zeck, Taner Ünlü

Bulletin of the Mineral Research and Exploration

No abstract provided.

Petrology Of Akçataş Granite (Nevşehi̇r) In The Middle Anatolian Massive, Ş. Nihal Aydin

Bulletin of the Mineral Research and Exploration

No abstract provided.

Presence Of Nummulites Fabianii (Prever) Group (Nummuli̇tes Ex Gr. Fabi̇ani̇i̇) And Associated Foraminifers In The Elaziğ Region, Niyazi Avşar

Bulletin of the Mineral Research and Exploration

The presence of Nummulites ex gr. fabianii has been indicated in the Eocene sediments, and the stratigraphy of the region is briefly given. The rock units of Paleozoic, Mesozoic and Cenozoic ages crop out in the region. The Paleozoic sequence is composed of metamorphic rocks. This unit is tectonically underlain by the Mesozoic sequence formed of magmatic rocks. The Paleozoic and Mesozoic rocks arc unconformably overlain by the sandstone and algal limestones of the Upper Lutetian age. Algal limestone contains genera of the Foraminifcra such as Nummulites perforatus (Montfort). Assilina spira (de Roissy), Alveolina fusiformis Sowerby, Alveolina elongata d'Orbigny, Fabiania …

Macro And Micro Fossil Flora Of Soma Coal Area, Yusuf Gemi̇ci̇, Erol Akyol, Funda Akgün, Özcan Seçmen

Bulletin of the Mineral Research and Exploration

No abstract provided.

Cideina, A New Foraminiferal Genus From The Maastrichtian Limestone Of The Cide Region (North Turkey), Ercüment Si̇rel

Bulletin of the Mineral Research and Exploration

No abstract provided.

Thermochronology And Thermobarometry In Lithotectonic Zones In Eastern New England, Andrea Koziol, Robert Wintsch

Andrea M. Koziol

Scanning Electron Microscopic Study Of Quartz Sand Surface Features, Ash Hollow Formation, Ogallala Group, Western Nebraska, Patricia E. Helland, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

In field studies of the late Tertiary Ash Hollow Formation of the Ogallala Group in western Nebraska the alluvial deposits are composed of large volumes of sand and gravel up to large cobbles. Because the current understanding of the climate of the region at the time of deposition does not provide for a source for deposits of this character, a scanning electron microscopic study of the surface features on the quartz sand grains from these sediments was undertaken. Nine samples, collected from locations in Banner, Morrill and Keith Counties, were examined to see if they had one or more of …