Digital Commons Network^™

The Effects Of Groundwater Seepage On Stream Regimen : A Laboratory Study, Samuel S. Harrison

Theses and Dissertations

The effects of' groundwater seepage on the competence, bed rough ness, and water surface slope of small streams were studied in two laboratory fumes. The larger fume is 20 feet long, 3t feet wide, and 18 inches deep; the smaller flume is 12 feet long, 6 inches wide, and 10 inches deep. Both flumes are equipped so that groundwater seepage through the stream bed can be controlled and monitored.

In the absence of bedforms, upward (positive) seepage has little effect on stream competence or transport rate, even when quicksand conditions are reached. The decrease in effective grain density brought about …

The Postglacial Sedimentology Of Devils Lake, North Dakota, Edward Callender

Theses and Dissertations

The present sedimentary environment of Devils Lake, a Closed brackish lake in northeastern North Dakota, was investigated, and changes in the Holocene lacustrine environment are interpreted. Sediment samples from Main Bay of Devils Lake were analyzed for their physical, chemical and mineral ogical properties. Analytical data on surface sedimer.t were used to delineate the present sedimentary environment, while data on sediment from three cores were used to reconstruct the Holocene lacustrine history.

The dominant physical processes affecting the surface sediment are wave action and intermittent sediment influx through Big Coulee. The dominant chemical process, precipitation of calcium carbonate, is a …

Geologic And Limnologic History Of Glovers Pond, Northwestern New Jersey, J. Mark Erickson

Theses and Dissertations

Glovers Pond is a temperate, dimictic lake, 1.25 miles southwest of the town of Johnsonburg, Blairstown 7.5' Quadrangle, northwestern New Jersey. The Paleozoic Kittatinny, Jacksonburg, and Martinsburg Formations, in fault contact with each other, crop out in the vicinity of the lake. The lake has a maximum depth of 9.5 meters and occupies a glacially modified and dammed fault valley currently being infilled concentrically by .four types of sediment. Basim1ard these are: (1) peat, (2) marl, (3) "transitional", calcareous, organic-rich silt, and (4) gyttja. Glovers Pond is thermally and chemically stratified. The hypolimnion is undersaturated with CaCO3; tl1is prohibits deposition …

The Downhole Suspension And Testing Of An Electrodynamic Shear Wave Exciter, Robert Franklin Kehrman

Masters Theses

"The work in this research project was aimed at designing a Downhole Electromagnetic Shear Wave Generator capable of delivering a wide frequency band, random, continuous signal. This Exciter was built using a compressed-air driven piston assembly for downhole application. The device was tested in the laboratory in a concrete test facility. It proved to be capable of transmitting a continuous, measurable stress into the concrete in a 100 to 5,000 hertz frequency band"--Abstract, page ii.

Geophysical Institute Annual Report 1967-68, University Of Alaska Fairbanks. Geophysical Institute

GI Reports

The 1967–68 Geophysical Institute Annual Report presents an overview of the year’s scientific research achievements across the Institute’s disciplines, alongside operational summaries covering finances, administrative changes, and other key activities.

Etude Du Comportement De L'Homme En Milieu Souterrain (Bilan De Cinq Experimentations), Pierre Saumande

International Journal of Speleology

In the course of live specially planned expeditions, the author studied the behaviour of man in the very special environment of caves. He explains the tests employed. The results obtained suggest that the human organism seems able to adapt to this uncommon environment but exhibits lethargy and reduced activity.

An Analytical Study Of Air Circulation In Caves, Arrigo A. Cigna

International Journal of Speleology

The different types of air circulation in caves are classified according to the origin of the circulation, as either static or dynamic. In a cave static causes are: (a) differences between inside and outside air density owing to: (i) air temperature; (ii) relative humidity; (iii) chemical composition; (b) atmospheric pressure variation. Dynamic causes are: (a) moving fluids: (i) inside the cave; (ii) outside the cave. Whenever possible the above mentioned phenomena have been considered from a mathematical point of view in order to obtain equations relating the different quantities involved.

Sur Une Nouvelle Sous-Espèce De Niphargus Jovanovici Karaman (Crustacea, Amphipoda, Gammaridae) De Dijon, France, François Graf, Milan Straškraba

International Journal of Speleology

The new subspecies, Niphargus jovanovici burgundus n.subsp., is described from a well at Dijon, France. The principal diagnostic characters are given and a comparison with other known subspecies of N. jovanovici is made. Two groups of subspecies in N. jovanovici are distinguished and some critical remarks on probable affinities of N. jovanovici with other species of Niphargus are made.

Compte-Rendu De La Conférence Internationale De Spéléologie Et De Karstologie D'Istanbul (24 Sept.-14 Oct. 1964), Paul Fenelon

International Journal of Speleology

Arranged by geologist Dr. Temucin Aygen, the International Conference of Speleology and Karstology at Istanbul, with the participation of about twenty foreign scholars, opened first at Beyazit de Stamboul University. For three days papers and discussions enlivened the sessions, broken by tours around the Bosporus. During the following two weeks the members of the Conference took a field trip across Anatolia, through Ankara, Konya, Mersin, Antalya, Burdur, Izmir, Bursa, and Istanbul. They thus had the opportunity to investigate the principal karstic phenomena of Turkey - the Konya obrouks, travertines of’ Yerkòpru and Antalya, caves of the Mersin region, vauclusian springs …

A Propos De Troglobies Vivant Dans Les Eaux D'Une Mine De Fer De Lorraine, Jean-Paul Henry, Claude Marvillet

International Journal of Speleology

Two explorations of the galleries of the Orne-Pauline iron mine at Moyeuvre-Grande (Moselle), made one year apart, resulted in the collection on each occasion of varied and abundant material (5 spp. of peracarid crustaceans and a worm) of aquatic troglobites: 3 spp. of Niphargus, one of which is new to Lorraine (N. kochianus kochianus), 2 spp. of isopods, Asellus cavaticus and Caecosphaeroma burgundum (for which this is the northernmost locality), and finally a local form of Dendrocoelides collini.

Sur Quelques Collemboles Cavernicoles De Roumanie, Magdalena Gruia

International Journal of Speleology

An important collection of Collembola from Romania contained six species. One of them is new - Onychiurus orghidani n.sp. found in one cave of Oltenia. The presence of Onychiurus boldorii Denis in Romania is reported for the first time, and the discovery of a large number of Beckerella spelaea Ionesco made it possible to place this species in the genus Xenylla. Finally, additions are made to the known geographic distributions of Mesachorutes ojcoviensis Stach and Lepidocyrtus serbicus Denis.

Ökologie, Systematik Und Verbreitung Zweier In Norddeutschland Sympatrisch Lebender Bathynella-Arten (Crustacea, Syncarida), Siegfried Husmann

International Journal of Speleology

The sympatric occurrence of two bathynellids previously considered races of Bathynella natans - natans and stammeri - is evaluated as a natural ecological-genetic experiment. Since no hybrids appear in mixed populations, these forms are proven to be full species: Bathynella natans Vejdovsky and Bathynella stammeri (Jakobi). Besides the form of the mandibles, which until now was the only taxonomically useful diagnostic character in the genus Bathynella, 7 additional, suitably applicable morphological characters have been found (Table 3). The Bathynella biotope investigated is assigned to the “eustygopsammal” subterranean life province (Husmann 1966), which is associated with the “Parastenocaris-Bathynella” …

Ecological Studies In The Mammoth Cave System Of Kentucky, Thomas C. Barr Jr.

International Journal of Speleology

The Mammoth Cave system includes more than 175 kilometers of explored passages in Mammoth Cave National Park, Kentucky. Although biologists have explored the caves intermittently since 1822, the inventory of living organisms in the system is still incomplete. The present study lists approximately 200 species of animals, 67 species of algae, 27 species of fungi, and 7 species of twilight-zone bryophytes. The fauna is composed of 22% troglobites, 36% troglophiles, 22% trogloxenes, and 20% accidentals, and includes protozoans, sponges, triclads, nematodes, nematomorphs, rotifers, oligochaetes, gastropods, cladocerans, copepods, ostracods, isopods, amphipods, decapods, pseudoscorpions, opilionids, spiders, mites and ticks, tardigrades, millipedes, centipedes, …

Structure And Stratigraphy Of The Northern Part Of The South Virgin Mountains, Clark County, Nevada, J. R. Morgan

Earth and Planetary Sciences ETDs

The northern part of the South Virgin Mountains is within the transition zone between the Basin and Range Province and the High Plateaus of the Colorado Plateau. Sedimentary formations in the Paleozoic are represented by more than 6,800 feet of carbonate and elastic sediments. Ordovician rocks are thought to be present, but are not confirmed. Rocks of Silurian age are absent from the area. Triassic and Jurassic units, the Moenkopi Formation, Chinle Formation and the Aztec Sandstone, have a composite thickness of more than 3,700 feet. There are elastic and minor carbonate rocks, all of continental origin, that are of …

Criteria For The Determination Of Flow Direction In Volcanic Rocks, Eugene Irwin Smith

Earth and Planetary Sciences ETDs

A statistical method employing the Tukey Chi-square test and the vector method was used for determining the direction of primary flow lineation in volcanic rocks. Oriented samples were collected from the McCartys Basalt, the porphyritic andesite of Mount Taylor and the Bandelier and Battleship Rock Rhyolite Tuffs of the Jemez Mountains. All these localities are in New Mexico. Measurements were taken of the elongate particles in each horizontal thin section. The flow lineation direction in each slide was determined statistically by computing values of vector mean or chi-square orientation. The McCartys flow samples showed the lowest reliability. This was probably …

L.A. General Data, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Analytical Data, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Pool Studies, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Mill Pollution, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Biochemical Activity, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

The Nitrate Hazard In Well Water: With Special Reference To Holt County, Nebraska., Richard A. Engberg

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Waterways: Comprehensive Regional Plan Series Report Four, East Central Florida Regional Planning Council

City and Regional Planning -- Florida

A plan to make use of the lakes, rivers, canals, and oceans for commerce and other development

A Petrochemical Study Of Compositionally Zoned Ash-Flow Tuffs, David L. Giles

Earth and Planetary Sciences ETDs

Vertical compositional zoning occurs within the basal simple cooling units of two welded ash-flow tuff sheets, the Kneeling Nun and Caballo Blanco formations, in the Cobre Mountains of southwestern New Mexico. The sheets are on the southern edge of the Datil-Mogollon volcanic province. The Kneeling Nun (33.4 m.y.) varies abruptly but systematically upward from a modal quartz latite to latite, and the Caballo Blanco (29.8 m.y.) from a modal rhyolite to capping quartz latite. Both are crystal-rich, and in each the amount of ferromagnesian and plagioclase phenocrysts and phenocryst percent increases upward, while the quartz and alkali feldspar/plagioclase ratio decreases. …

A Pre- And Post-Improvement Study On Six Southeast Kansas Strip-Mine Lakes, William Thomas Waller

Electronic Theses & Dissertations

During the last sixty years extensive experimental research has been conducted in an attempt to establish methods of controlling the acid conditions resulting from coal mine operations.

It was the purpose of this research to determine the feasibility of reclaiming acid strip-mine lakes for use as potential fisheries management areas. To accomplish the objectives outlined above a two-phase program was initiated. The first phase involved the physical alteration of the drainage areas of the experimental lakes included in this study in an attempt to divert all visible signs of acid drainage to areas other than those incorporated into the drainage …

Geology Of The Cerro Pelon-Arroyo De La Jara Area, Santa Fe County, New Mexico, Alvis Lee Lisenbee

Earth and Planetary Sciences ETDs

The Cerro Pelon-Arroyo de la Jara area is a north-northwesterly plunging syncline at the southern end of the Española basin. Exposed rock units consist of more than 5,000 feet of Mesozoic and Cenozoic shale and sandstone intruded by Oligocene diorite sills and andesite and latite dikes related to the Ortiz intrusive center to the west.

The syncline is affected by several fault systems with both normal and strike-slip movement represented. Northerly trending faults of the east limb combine with a monoclinal flexure to produce an over-all lowering of the section to the west. These faults appear to be related to …

A Stratigraphic Study Of The Navajo Sandstone, Navajo Mountain, Utah And Arizona, William O. Hatchell

Earth and Planetary Sciences ETDs

The Navajo Sandstone of the Triassic(?) and Jurassic age is approximately 1, 000 feet thick at Navajo Mountain, Utah, and is composed of sets of cliff-forming, highly cross-stratified sandstone and horizontally stratified limestone, siltstone, and sandstone. it is intertongued on a large scale with the underlying, fluvial Kayenta Formation of Triassic(?) age, and is comfortably overlain by the marine Carmel Formation of the Jurassic age.

In the highly cross-stratified Navajo, tabular-planner and wedge planner sets are more common than simple wedge sets, and persistent horizontal bedding and truncation planes distinguish individual sets. Ripple marks, a distinctive type of "graded bedding", …

Stratigraphic Cross Section Of Paleozoic Rocks Of Nebraska, Russell Smith, Raymond Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Water Levels In Observation Wells In Nebraska, 1966, C.F. Keech

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology Of The West-Central Part Of The Malad Range, Idaho, Phillip H. Wach

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The west-central part of the Malad Range is located in south-eastern Idaho. This area was the site of thick marine deposition in the early Paleozoic period. In the Tertiary and Quaternary periods continental deposition occurred, covering the Paleozoic rocks. Quartzite and shale units of the Brigham Quartzite are found near the base of the Cambrian section. Carbonate with shale interbeds is found in the middle and late Cambrian units. Limestone and silty limestone are found in the early and middle Ordovician time overlain by the middle Ordovician Swan Peak Quartzite. The Laketown Dolomite includes units of late Ordovician and Silurian …