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Articles 1 - 30 of 194
Full-Text Articles in Physical Sciences and Mathematics
Investigation Of Present Thermal Regime Of Missouri River In Missouri, James C. Maxwell
Investigation Of Present Thermal Regime Of Missouri River In Missouri, James C. Maxwell
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
The applicability of power spectral density techniques, Fourier series analysis, and linear regression to the mathematical modeling of river water temperature is demonstrated. Consideration is also given to the problem of estimating thermal inputs to rivers from man-made sources such as electrical power plants. First, power spectral density techniques are used in the time-series analysis of water temperature records which were taken from the Missouri River. Two spectral ranges are then studied from the standpoint of their applicability to (1) mathematical model building and (2) detection and identification of cyclic thermal inputs. Next, a Fourier regression fit to the time-series …
The Dacites Of The Washakie Needles, Bunsen Peak, And The Birch Hills, Wyoming, And Their Relationship To The Absaroka-Gallatin Volcanic Province, Linda Lou Anderson Love
The Dacites Of The Washakie Needles, Bunsen Peak, And The Birch Hills, Wyoming, And Their Relationship To The Absaroka-Gallatin Volcanic Province, Linda Lou Anderson Love
Earth and Planetary Sciences ETDs
ABSTRACT
TI1e Washakie Needles, Bunsen Peak, and Birch Hills dacites are three of many plugs which intrude the Eocene flows and volcaniclastic rocks of the Absaroka-Gallatin volcanic province. The dacites contain phenocrysts of plagioclase (oligoclase to andesine), biotite, and resorbed quartz. The dacites of the Washakie Needles and Bunsen Peak also contain phenocrysts of hornblende. The rocks of Bunsen Peak and the Birch Hills have two feldspar phases (oligoclase to andesine and sanidine) and quartz in the groundmass. The Washakie Needles dacite groundmass is composed of one feldspar (andesine to anorthoclase) and quartz. The fission track ages of the dacites …
Characterization Of Water Movement Into And Through Soils During And Immediately After Rainstorms, C. T. Haan
Characterization Of Water Movement Into And Through Soils During And Immediately After Rainstorms, C. T. Haan
KWRRI Research Reports
The movement of water into and through soils in the unsaturated state is basic to many water resources problems including rainfall-runoff models, ground water recharge, irrigation, drainage, evapotranspiration and the movement of pollutants in soils. This study was conducted in an effort to determine if the flow equation based on Darcy's Law and the continuity equation could be used to describe watershed infiltration and thus be incorporated into hydrologic models.
The results of the study indicate that even on apparently uniform soils there is a great deal of variability in soil water properties. Handling this variability plus the difficulty of …
Epeirogenic And Climatic Controls Of Early Pleistocene Fluvial Sediment Dispersal In Nebraska, K. O. Stanley, William J. Wayne
Epeirogenic And Climatic Controls Of Early Pleistocene Fluvial Sediment Dispersal In Nebraska, K. O. Stanley, William J. Wayne
Department of Earth and Atmospheric Sciences: Faculty Publications
The change from Pliocene to Pleistocene fluvial sedimentation in Nebraska is denoted by gravel with relative enrichment of mechanically weak rock species and a two-fold increase in largest clast size. These changes in fluvial sediments suggest modification in degradational energy affecting detritus apparently related to deterioration of climate in the early Pleistocene. Cooler Pleistocene climates with increased moisture resulted in greater discharge and carrying capacity for streams headed in the Rocky Mountains and flowing across Nebraska. These streams carried granitic detritus eastward toward the continental glacier margin in easternmost Nebraska. There, streams flowing off ice sheets carrying sedimentary and metamorphic …
Gravity Survey Of The Mogolion Plateau Volcanic Province, Southwestern New Mexico., Douglas Hugh Krohn
Gravity Survey Of The Mogolion Plateau Volcanic Province, Southwestern New Mexico., Douglas Hugh Krohn
Earth and Planetary Sciences ETDs
A regional gravity survey has been conducted over the Mogollon Plateau, a mid-Tertiary volcano-tectonic complex 125 km in diameter located in southwestern New Mexico. The complete Bouguer gravity map (3 milligal contour interval) shows gravity values ranging form -167 milligals over an outcrop of Precambrian rocks near Silver City, on the southern rim of the Plateau to -251 milligals over an alluvium filled graben east of Reserve, in the northwestern part of the Plateau giving a maximum relief of 84 milligals. Gravity data show that in general the Mogollon Plateau is an area of low density rocks: gravity values within …
The Structural And Metamorphic History Of The Oakhurst Roof Pendant, Mariposa And Madera Counties, California, Lee R. Russell
The Structural And Metamorphic History Of The Oakhurst Roof Pendant, Mariposa And Madera Counties, California, Lee R. Russell
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Oakhurst roof pendant, near Oakhurst, California, consists of three pre-Cretaceous clastic metasedimentary rock units, surrounded and intruded by rocks of the Sierra Nevada batholith. Two zones of probable "sheared granitic" and "ultramafic" rocks trend northwesterly and are approximately aligned with the Foothills fault system farther north.
The dominant mesocopic feature of the pendant is a northwesterly striking foliation which forms a downward converging fan. Earlier-formed hornblende lineations have been transposed into this foliation plane, as shown by Schmidt-net projections.
Rocks comprising the three unites show three textural stages:
1) Early amphiboles and diopside overgrown by later static amphibole pophyroblasts. …
D.O. And Other Tests, Walter A. Lawrance
Mill Pollution, Walter A. Lawrance
Press Reports, Walter A. Lawrance
Pool Studies, Walter A. Lawrance
Computer Sheets, Walter A. Lawrance
Special Reports, Walter A. Lawrance
L.A. General Data, Walter A. Lawrance
Evidence That The Synchronized Production Of New Basal Bodies Is Not Associated With Dna Synthesis In Stentor Coeruleus, K. B. Younger, S. Banerjee, J. K. Kelleher, M. Winston, Lynn Margulis
Evidence That The Synchronized Production Of New Basal Bodies Is Not Associated With Dna Synthesis In Stentor Coeruleus, K. B. Younger, S. Banerjee, J. K. Kelleher, M. Winston, Lynn Margulis
Lynn Margulis (1938 - 2011)
Stentors were induced to produce synchronously thousands of new ciliated oral membranellar band basal bodies in less than 3 h. DNA synthesis does not accompany this process, as determined by [3H]thymidine incorporation into isolated bands and by sensitivity to DNA synthesis inhibitors (mitomycin C, ethidium bromide, cytosine arabinoside and hydroxyurea). Yet DNA could be detected in the cortex and the band at basal body sites by autoradiography. Since [3H]thymidine incorporation into membranellar band was eliminated in concentrations of ethidium bromide that had no effect on basal body formation, the previous reports of ciliate kinetosomal (basal body) DNA are interpreted as …
The Relation Between Soil Characteristics, Water Movement And Nitrate Contamination Of Ground Water, Grant W. Thomas, Matthew Mcmahon
The Relation Between Soil Characteristics, Water Movement And Nitrate Contamination Of Ground Water, Grant W. Thomas, Matthew Mcmahon
KWRRI Research Reports
Soils from several areas in Kentucky were placed in columns and leached with Ca(NO3)2. Subsoils high in iron oxide were found to retard the leaching of nitrate very significantly. In other soils, the nitrate moved through as fast as or slightly faster than the water.
Field application of nitrogen to corn was most efficient when done in the spring or summer near the time that the corn takes it up. The one exception to this was a red soil, where fall application of nitrogen resulted in little loss due to the retarding effect mentioned in the …
Lower Paleozoic Stratigraphy And Faunas Of The Eastern Taurus Mountains In The Tufanbeyli̇ Region, Southern Turkey, Necdet Özgül, Sait Meti̇n, William T. Dean
Lower Paleozoic Stratigraphy And Faunas Of The Eastern Taurus Mountains In The Tufanbeyli̇ Region, Southern Turkey, Necdet Özgül, Sait Meti̇n, William T. Dean
Bulletin of the Mineral Research and Exploration
No abstract provided.
Tunellite, A New Hydrous Strontium Borate From The Sarikaya Borate Deposits In Turkey, Orhan Baysal
Tunellite, A New Hydrous Strontium Borate From The Sarikaya Borate Deposits In Turkey, Orhan Baysal
Bulletin of the Mineral Research and Exploration
No abstract provided.
Deği̇şken Frekansli İ.P. Metodunda, Aşiri Geri̇li̇mi̇n Reel Ve İmaji̇ner Bi̇leşenleri̇nden İsti̇fade İle Yan Kayaç Anomali̇leri̇ni̇n Sülfürlü Mi̇neral Yataklarinin Anomali̇leri̇nden Ayrilmasi*, Akın Gökişik
Bulletin of the Mineral Research and Exploration
No abstract provided.
Deni̇z Hukukundaki̇ Yeni̇ Geli̇şmeler Ve Madenci̇li̇kle İli̇şki̇si̇*, Selçuk Demi̇rsoy
Deni̇z Hukukundaki̇ Yeni̇ Geli̇şmeler Ve Madenci̇li̇kle İli̇şki̇si̇*, Selçuk Demi̇rsoy
Bulletin of the Mineral Research and Exploration
No abstract provided.
Sediment-Topography Relationships In The Inner Nearshore Zone, Southeastern Lake Michigan, Robert David Lopiccolo
Sediment-Topography Relationships In The Inner Nearshore Zone, Southeastern Lake Michigan, Robert David Lopiccolo
Masters Theses
No abstract provided.
Physical And Geological Studies Of The Proposed Bridge-Tunnel Crossing Of Hampton Roads Near Craney Island, C. S. Fang, B. J. Neilson, A. Y. Kuo, R. J. Byrne, C. S. Welch
Physical And Geological Studies Of The Proposed Bridge-Tunnel Crossing Of Hampton Roads Near Craney Island, C. S. Fang, B. J. Neilson, A. Y. Kuo, R. J. Byrne, C. S. Welch
Reports
Part 1: James River Hydraulic Model Tests
Part 2: Impact on Shoreline, Hampton Flats and Newport News Point Area
Part 3: Drogue Study, Hampton Flats and Newport News Point
Part 4: Hydraulic Model Test Results
The Bi̇ngöl Earthquake Fault And Its Relation To The North Anatolian Fault Zone, İhsan Seymen, Atillâ Aydin
The Bi̇ngöl Earthquake Fault And Its Relation To The North Anatolian Fault Zone, İhsan Seymen, Atillâ Aydin
Bulletin of the Mineral Research and Exploration
No abstract provided.
Studies On Tunellite (Strontium Borate) Mineral, Hüseyin Gülensoy, T. Teberdar
Studies On Tunellite (Strontium Borate) Mineral, Hüseyin Gülensoy, T. Teberdar
Bulletin of the Mineral Research and Exploration
No abstract provided.
The Köprübaşi Ore Occurrence (Ne Turkey), Vojislav Vujanovi̇c
The Köprübaşi Ore Occurrence (Ne Turkey), Vojislav Vujanovi̇c
Bulletin of the Mineral Research and Exploration
No abstract provided.
Solid Phase Reactions With Tunellite Mineral, Hüseyin Gülensoy, T. Teberdar
Solid Phase Reactions With Tunellite Mineral, Hüseyin Gülensoy, T. Teberdar
Bulletin of the Mineral Research and Exploration
No abstract provided.
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part Ii, Vincent P. Drnevich, D. Raghu
Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part Ii, Vincent P. Drnevich, D. Raghu
KWRRI Research Reports
Four seismic field methods and a laboratory method are used to determine shear wave propagation velocities and shear moduli for two sites. The four seismic methods are: standard seismic refraction survey, down hole shooting refraction survey, transient Rayleigh wave survey, and crosshole shooting survey. A torsional resonant column apparatus was used for the laboratory tests. The cross hole shooting method gave the best results because direct measurements were made. Criteria for using this method are given. Methods which measure compression wave velocity give inconsistent results because the conversion to shear wave velocity is very sensitive to Poisson's ratio. Laboratory tests …
Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part I, Vincent P. Drnevich, S. R. Smith, E. P. Cleveland
Location Of Solution Channels And Sinkholes At Dam Sites And Backwater Areas By Seismic Methods: Part I, Vincent P. Drnevich, S. R. Smith, E. P. Cleveland
KWRRI Research Reports
The basic concepts associated with the sledge hammer seismic refraction survey are reviewed and a modified version called down hole shooting is discussed. The latter method has distinct advantages for rock surface profiling. These include: calibration at the end points of the survey, measurement of vertical wave propagation velocities directly, and having a refracted wave ray path for almost the entire survey length.
The down hole shooting seismic refraction survey has been simulated with the digital computer. The method can handle any shaped rock surface profile and generates corresponding travel time curves for the forward and reverse profile surveys. This …
Glacial Geology Near Mcmurdo Sound And Comparison With The Central Transantarctic Mountains, Paul Andrew Mayewski
Glacial Geology Near Mcmurdo Sound And Comparison With The Central Transantarctic Mountains, Paul Andrew Mayewski
Earth Science Faculty Scholarship
(From summary, pp. 105-106) In the central Transantarctic Mountains, the Sirius Formation consists of both a lower massive till and an upper assemblage of interlayered till and stratified lenses. Deposits of the Sirius Formation found in the McMurdo region contain only the lower massive till. The lower massive till of the Sirius Formation is thought to be a basal till because of extremely strong fabric, high concentration of faceted and striated pebbles, and heterogeneous particle sizes (clay to boulders). Fabrics observed in the basal till indicate that the ice that deposited the Sirius Formation, although displaying a much higher surface …
Petrology Of The Ultramafic Rocks And Brief Geology Of The Andizlik - Zimparalik Area, Fethi̇ye, Southwest Turkey, Tandoğan Engi̇n
Petrology Of The Ultramafic Rocks And Brief Geology Of The Andizlik - Zimparalik Area, Fethi̇ye, Southwest Turkey, Tandoğan Engi̇n
Bulletin of the Mineral Research and Exploration
No abstract provided.