Digital Commons Network^™

Stratigraphy And Structure Of The Goajira Peninsula, Northwestern Venezuela And Northeastern Colombia, John F. Rollins

University Studies (University of Nebraska) (1888–1984)

The Goajira Peninsula forms the northernmost extension of continental South America (see Fig. 1). Its lobate outer portion, the area of this geologic study, is a mountainous region about 75 kilometers wide at its widest part and juts 150 kilometers northeastward into the Caribbean Sea. Although only about 110 kilometers north of the city of Maracaibo, Venezuela, the Peninsula is isolated and little known. Only a narrow coastal strip lies in Venezuela; the remainder is in Colombia; but the Peninsula is largely a desert wasteland not extensively entered by people other than its own sparse Indian population. Its remoteness has …

Kimberley Research Station Progress Report, 1964 : Soil Fertility And Plant Nutrition, D B. Parbery, R. Wetselaar

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

BEFORE 1963, very little work, other than that described in Burvill's original report, had been done on the analysis of Ord soils, nor had their fertility status been clearly defined.

Contour Planting For Hillside Orchards. Part 1, N H. Shorter

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

FRUIT growers intending to plant an orchard on sloping land, would be well advised to consider the suitability of the block for planting on a contour system.

Leaf Scorch Of Apple Trees, N H. Shorter

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

BEFORE the 1964-65 fruit season, sections of a number of orchards in the Donnybrook district were converted to systems of permanent overhead sprinkler irrigation.

In several cases, however, leaf scorch occurred where these overhead sprinklers were used during the day time.

Correlation Of Formations Drilled In Test Holes For Interstate 480 Bridge Between Omaha, Nebraska, And Council Bluffs, Iowa, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Available Water Supply Of The Las Vegas Ground-Water Basin Nevada, Glenn Thomas Malmberg

Publications (WR)

The Las Vegas ground-water basin as described in this report includes the southern part of Indian Spring Valley, Three Lakes Valley, the northern half of Ivanpah Valley, and Las Vegas Valley. These valleys in part are inferred to form a hydrologic unit that includes an area of about 3,000 square miles in the southern part of Clark County, Nev.

The valleys forming the Las Vegas ground-water basin are broad structural depressions surrounded by mountains. The climate of the region is arid, and precipitation in the basin lowlands rarely exceeds 5 inches per year. Drainage is interior except for occasional Hood …

Geology Of The Lamy-CañOncito Area, Santa Fe County, New Mexico, Robert S. Goolsby

Earth and Planetary Sciences ETDs

The area studied lies in the vicinity of Lamy and Canoncito in Santa Fe County, about 17 miles southeast of Santa Fe, New Mexico.

The rocks range in age from Precambrian through Quaternary, Precambrian rocks include dark schist and pink gneiss, with minor amounts of greenstone and quaritzite, Overlying the Precambrian rocks is a sequence of sandy limestone called the Basal Limestone, of Mississippian and possibly Devonian age. The Pennsylvanian System is represented by the Sandia formation and Madera Limestone, which are dominantly dark shale and fossiliferous limestone. The Sangre de Cristo and Yeso Formations, Glorieta Sandstone, San Andres Linestone, …

Geology Of The San Mateo Peak Area, Socorro County, New Mexico., James W. Furlow

Earth and Planetary Sciences ETDs

The San Mateo Mountains of south-central New Mexico consist of an uplifted block of Tertiary volcanics 20 miles wide by 4 miles ling. The San Mateo uplift is one of the bounding uplifts along the western side of the Rio Grande depression.

The basement rock as exposed just east of the San Mateos is a Precambrian granite; it is overlain in order by the Cambrian Bliss formation, the Ordovician Sierrite Limestone, Cable canyon sandstone, and Upham Dolomite, the Pennsylvanian Magdalena Group, and the Permian Abo Formation. These sedimentary rocks are unconformably overlain by Tertiary volcanic rocks of the Lower volcanic …

Geology Of The Rayado Area, Colfax County, New Mexico, Richard W. Simms

Earth and Planetary Sciences ETDs

The Rayado area is 25 miles west of Springer, New Mexico, in the southeastern foothills of the Cimarron Mountains. The range is a northward-plunging anticline with a core of Precambrian crystalline rocks. The mountains are bordered on the west by a normal fault and on the east by the high-angle Fowler Pass thrust fault of Laramide age. Rocks of Permian through Upper Cretaceous age were turned upward along the fault forming a prominent north-south hogback through the western part of the area.

Revision Of The Classification Of The Pleistocene Deposits Of Nebraska, E. C. Reed, V. H. Dreeszen

Conservation and Survey Division: Faculty and Staff Publications

The first major contribution of the Conservation and Survey Division to Pleistocene stratigraphy was that of A. L. Lugn (1935) who established a classification of the periglacial deposits of the state and related these deposits to the glacial stages. G. E. Condra and E. C. Reed (1950) used information aquired during the 1935-1950 period in making important revisions to Lugn's classifications. This report was a further revision based on studies made from 1950 to publication date (1965).

Puccinellia : Outstanding Saltland Grass, C V. Malcolm, S. T. Smith

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

"Puccinellia" is a tussocky perennial grass with an outstanding ability to survive salty and waterlogged conditions.

Considerable areas of saltland in Western Australia are suited to its growth.

Seed is now available commercially and in this article the conditions to which the grass is suited are described and establishment and management methods are suggested.

Seed And Pasture Rates For New Dairy Pastures, F E. Ryan

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

THE success or failure of pasture establishment on new land often depends on the interaction of rate of seeding and rate of superphosphate application.

Every year large areas of virgin land are cleared and sown to pasture in the higher rainfall areas, and all-too often the new pasture is not as successful as it should be because too little super is applied, and, in some cases, too little seed.

Petrology And Mineralogy Of The "Old Workings Area," El Salvador, Chile, Bertis James Vander Schaaff

Masters Theses

"The 'Old Workings Area,' so called for its early mining by the Incas, is located 4 1/2 miles northeast of the El Salvador Porphyry copper deposit, the third largest copper producer in Chile. The area mapped in this study is shown to consist of rhyolite pebble conglomerate, two volcanic flows, andesite and rhyolite porphyry, and two intrusions. Quartz porphyry and tourmaline-bearing breccia. Petrographic study of surface and drill core rock samples confirms the field nomenclature used for the five rock types. All of the rock types are altered, but the quartz porphyry and andesite are the most intensely altered. Both …

Daten Zur Kenntnis Der Algenflora Der Höhle Kölyuk Von Mánfa, George Claus

International Journal of Speleology

The Kolyuk cave lies in the southern part of Hungary in the Mecsek Mountains, about 3 km. in distance from the village of Mànfa. The material accepted for investigation originated from a recently discovered and until now completely entombed part of the cave. It was collected by the geologist Gàbor Magyari and consisted of material scraped from the walls and ceiling of a cavity in the cave, which could be reached only by underwater swimming. From these scrapings cultures were installed with sterile Knopp solution and after the algae present in the collection reproduced, a diversified flora developed which consisted …

Geology Of Pride Mine And New Standard Mine Area, Northwestern Yuma County, Arizona, Henry E. Fernandez

Masters Theses

"A thick section of presumably Precambrian gneiss with thin intercalated bands of marble and schist has been mapped. There is structural continuity within these rock types as they are mutually intercalated, conformable, have gradational relations and show equal participation in the same individual fold. The layers of schist and marble in the gneiss can be followed over long distances. These rocks have undergone intense regional metamorphism, primarily dynamic, with a possible regional compressive force generated from NW-SE giving rise to sets of folds and faults in the area. From structural, petrographic and field evidence, it is concluded that the metamorphic …

The Geology Of The Interstate Highway 244 And 44 Exchange, Kirkwood, Missouri, John Neil Thomas

Masters Theses

"During the summer of 1964, construction was completed on the intersection of Interstate Highways 244, 44 and U.S. Highway 66, one mile southwest of Kirkwood, Missouri. during the construction of the interchange, numerous artificial exposures of rocks of the middle Mississippian Meramecian Series were exposed. This provided an excellent opportunity for examining fresh exposures near the type Meramecian Series. The formations of the area were studied, and startigraphic [sic] sections were prepared from three of the more complete sections that were measured and described. The highway cuts expose complete sections of the Warsaw and Salem formations, and the lower part …

International Association For Quaternary Research Viith Congress-Guidebook For Field Conference D, Central Great Plains, Bertrand C. Schultz, H.T.U. Smith

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska's Groundwater, C. First, J. Kufel, M. Seidel

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Nebraska's Groundwater, C. First, J. Kufel, M. Seidel

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

A Terrain Study Of The Bloodland Quadrangle, Pulaski County, Missouri, Lawrence E. Mullins

Masters Theses

"This study is an investigation of the environmental conditions which affect cross country movement for tracked military vehicles on a major portion of the Fort Leonard Wood Military Reservation.

The terrain has been mapped from the trafficability standpoint by an investigation of the geology, topography, pedology and restrictive vegetation characteristics of the Bloodland seven and one-half minute quadrangle. The terrain analysis was accomplished by a combination of map study, laboratory investigation, photo interpretation, and direct field study of representative soil and vegetation types. The conclusions of this analysis are presented in the form of a cross country movement map"--Abstract, page …

Geology, Geochemistry And Genesis Of Selected Skarn Deposits, Northern New Brunswick, Canada, Donald John Bachinski

Masters Theses

"An exhaustive geological and geochemical study is presented of magnetite-chalcopyrite skarn deposits occurring within the thermal aureole of the Nicholas Denys quartz maonzonie-granodiorite stock. The deposits are crudely lenticular and occur in metamorphosed impure limestone and siliceous, in part limy, argillite-greywacke. These are now represented by andradite-epidote-diopside-calcite skarn and cal-silicate to horn-felsic rocks respectively. Both deposits are spatially related to the Main fault of the Rocky Brook-Millstream fault system; late, generally northwest trending transverse faults are conspicuous and are deemed of importance in ore localization"--Abstract, page [ii].

Zinc And Copper Content Of Stream Sediment In South-Central Missouri, Shih-Cheang Cheng

Masters Theses

"Thirty samples of stream sediment from the North Fork River, Bryant Creek and related tributaries in south-central Missouri have been analyzed for cold-extractable copper, cold-extractable heavy metal, total copper and total zinc.

Cold-extractable copper varies from 0 to 10 ppm and averages less than 1 ppm; cold-extractable heavy metal varies from 3 to 30 ppm and averages 12 ppm; total copper varies from 50 to 200 ppm and averages 88 ppm; total zinc varies from 20 to 300 ppm and averages 86 ppm.

The pH of the stream water appears to have no affect on the metal content of the …

Variation In Gold Content Of Minerals Of The Marysville Quartz Diorite Stock, Montana, Erwin Joseph Mantei

Doctoral Dissertations

"The purpose of this thesis was to study the amount and distribution of gold in the minerals of the Marysville quartz diorite stock, Montana. Twenty-eight rock samples were collected from various parts of the Marysville Stock, using a NS-EW grid sample pattern. Thirty additional samples were collected from selected localities and from the vicinity of the gold mines which occur around the periphery of the stock. By use of a hand magnet and a Frantz isodynamic separator, the magnetite, biotite, hornblende, and quartz-feldspar portions of the various rock samples were isolated and purified to between 90-99 percent purity. Eighteen thin …

Taxonomic Study Of Fossil And Recent Otoliths Of Certain Cuskeels, Gary Neal Pointer

Masters Theses

"Otoliths are calcareous structures occurring in the auditory labyrinths of teleost (bony) fishes. Three pairs of these earstones normally are found: the sagitta, in the sacculus; the asteriscus, in the lagena; and the lapillus in the utriculus. In fishes other than the Order cypriniformes (carp, catfishes, and related forms), the sagitta is the largest otolith, and it may be used in taxonomic and other studies. Fossil earstones of cuskeels (Family Ophidiiae-Brotulidae), constituting the Preophidion complex, occur in relative abundance at various levels in the Claiborne, Jackson, and Vicksburg groups of the Lower Tertiary on the Gulf Coast. The present study …

Geology Of Cienega Mining District, Northwestern Yuma County, Arizona, Elias Zambrano

Masters Theses

"The purpose of this investigation was to determine the general geology of an unusually complex area containing several small mines and located in the northwest corner of Yuma County, Arizona. This report is the first attempt to work out in detail the lithology, structure, stratigraphy, petrography, and economic geology of the area"--Introduction, Purpose and Scope, page 1.

Relationship Of The Turtle, Forest, And Park Rivers To The History Of Glacial Lake Agassiz, Samuel S. Harrison

Theses and Dissertations

The thesis here abstracted was written under the direction of Wilson M. Laird and approved by John R. Reid and Alan M. Cvancara as members of the examining committee, of which Dr. Laird was Chainnan.

During the summer of 1964 a study of the Turtle, Forest, and Park river valleys was undertaken to find evidence of former changes in river regimen. The regimen of rivers once draining into glacial Lake Agassiz was probably affected by changes in base level associated with fluctuations of that lake. The Turtle, Forest, and Park rivers, which presently flow eastward across the bed of Lake …

Contribution À L'Étude De La Biologie D'Asellus Cavaticus Leydig (Note Préliminaire), Jean-Paul Henry

International Journal of Speleology

The cavernicole asellid Asellus cavaticus Leydig has been reared in our laboratory for more than twenty months, permitting us to give some data on the sexual cycle of this species. Females provided with brood pouches seem to be more numerous in the spring, as is the case with the subterranean amphipod Niphargus virei Chevreux. The average length of the incubation period seems much shorter than that of other troglobitic species such as Niphargus virei Chevreux or Caecosphaeroma burgundum Dollfus, so that the life cycle of our species is nearer to that of epigean Asellus. The number of young per …

Grottes Du Banat (Roumanie) Explorées En 1963, Stefan Negrea, Alexandrina Negrea, V. Sencu, Lazare Botoşaneanu

International Journal of Speleology

The paper contains the description of 23 natural or artificial underground cavities in the Banat mountains, grouped in karst zones. It is in all respects a continuation of a preceding volume (Botosaneanu, Negrea & Negrea,1963) on the caves of the Romanian Banat.

Diatoms From Mammoth Cave, Kentucky, Sam L. Van Landingham

International Journal of Speleology

Samples collected in Mammoth Cave, Kentucky, revealed the presence of a diversified but not too abundant diatom community in the cave. As the material was not subjected to culturing experiments but was investigated immediately after arrival, both in native and permanent preparations, it was possible to: 1. ascertain that the majority of the diatoms contained well developed, apparently healthy and functioning chloroplasts and 2. to get a rough estimate of the actual number of specimens present in a microhabitat. The identifications resulted in the recognition of 16 diatom taxa of which possibly 4 are new to science. Further studies are, …

Glacial Geology Of The North Half Of Barnes County, North Dakota, Douglas A. Block

Theses and Dissertations

The geomorphology and glacial geology of the north half of Barnes County in east central North Dakota is described and interpreted. The area comprised a portion of the Western Lake section of the Central Lowland province and was informally designated the Middle Sheyenne River area without defining its boundaries. Four physiographic subdivisions in the Middle Sheyenne River area were assigned: 1. The Kensal Glacial Plain subdivision that embraces land between the Sheyenne River and the west county boundary. 2. The Sheyenne River Valley subdivision. 3. The Glacial-Lake Plains subdivision that consists of three separate but genetically related areas of lacustrine …