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Hydrothermal Alteration Of Ash-Flow Tuffs In The Indian Peak District Of Southwestern Utah, Michael Allan Tolley

Masters Theses

"Careful petrographic study of the ash-flow tuffs in the Indian Peak District of southwestern Utah reveals hydrothermal alteration around the fluorite veins. The alteration minerals themselves and the intensity of alteration vary with distance from the veins. Primary plagioclase has altered to secondary feldspar, calcite, sericite, and traces of epidote and zoisite. Hornblende and biotite have altered to chlorite, calcite, and secondary iron oxide, and traces of epidote and zoisite. Diopside has changed to calcite and secondary iron oxide. An overall picture of the mining district shows that certain minerals increase and others decrease as one nears the veins. Hydrothermal …

Fossil Otoliths Of Some Lower Cenozoic Perciform Fishes Of The Gulf Coast, Mostafa Juma Salem

Masters Theses

"Nineteen perciform species from the lower Cenozoic and one Recent species are described, and included under eight genera. The main characters that were considered as generic are the outline of the sagitta and the structure of the sulcus. The other features of the otolith were regarded as secondary in importance. The characters that were believed to be valuable at specific level are almost the same as those for the genus but in more detail. These species are considered to be within the Suborder Percoidei. The fossil species of "Nemipterus" were put in the Family Nemipteridae as they resembled the Recent …

Dolomitized Pahasapa Limestone (Mississippian), Northeastern Sector Of The Black Hills, South Dakota, Petrography And Geological Setting, Abdullatif Najjar

Masters Theses

"The carbonates of the Mississippian Pahasapa Limestone in the northeastern sector of the Black Hills outcrops were examined in order to ascertain specific characters of the lithology in this area where the formation is predominantly a dolomite in contrast to adjacent areas where it is mainly a limestone. The Pahasapa seems to be uniform in thickness at the study areas and maintains a thickness of about 550 feet. Because of poor exposures, usually at the base or top, complete sections could not be measured. Much of the Pahasapa consists of coarsely crystalline dolomite containing varying proportions of crinoid plates, gastropods, …

Studies On The Biology Of Oligochaetes From The Phreatic Water Of An Exposed Gravel Bed, Michael Ladle

International Journal of Speleology

More than twenty species of oligochaeta belonging to the families Enchytraeidae, Naididae, Tubificidae and Lumbriculidae were found in the phreatic water of the river bank gravels. Psammoryctes barbatus, Rhyacodrilus coccineus and Styludrilus heringianus were found throughout the year, attaining maturity in the spring. These three species may be univoltine under these conditions. The family Naididae and a few species of Tubificidae show well marked seasons of abundance, chiefly in the summer and autumn.

Concretions And Nodules In The Hell Creek Formation, Southwestern North Dakota, Gerald H. Groenwold

Theses and Dissertations

The Hell Creek Formation (Upper Cretaceous) in southwestern North Dakota consists of lagoonal and floodplain deposits and contains abundant concretions and nodules. Representative specimens of the concretions and nodules and their corresponding enclosing sediments were analyzed by thin section and by quantitative and qualitative x-ray diffraction methods.

Fourteen types of concretions and three types of nodules, classified according to shape and composition, have thus been defined. Concretionary types include calcareous sandstone lenses, “logs”, and irregular masses; sideritic sandstone lenses and irregular masses; calcareous and sideritic lignitic sandstone lenses; bone-cored rounded masses; coprolite-cored masses; jarosite bodies; pyrite spheres; baritic sandstone lenses; …

The Petroleum Geology Of The Midale Subinterval In North Central North Dakota, Kent A. Johnson

Theses and Dissertations

The Mississippian Midale subinterval is the basal unit of the Ratcliffe interval of the Madison Group. The Midale subinterval, an important petroleum producing unit in North Dakota, is a dolomitized limestone which is approximately 40 feet thick. A detailed study of 17 oil fields in north central North Dakota was conducted to determine the petroleum geology of the Midale subinterval. The study was done with the use of 563 mechanical well logs and core samples from 10 wells.

The anhydrite and dolomite units of the Rival subinterval, which underlie the Midale, and the Ratcliffe interval, which over lies the Midale, …

Erosion And Sedimentation In Lake Ashtabula, Southeastern North Dakota, Darryll T. Pederson

Theses and Dissertations

Erosion along the shore of Lake Ashtabula and nearshore and offshore sedimentation were studied from May 1969 to December 1970. The lake, located in the southeastern part of North Dakota, was formed when the Baldhill Dam stopped the flow of the Sheyenne River in 1950. Maximum depth of the lake is 45 feet in the inundated river channel immediately above the dam. The lake is 27 miles long and ranges in width from 1/3 to 1/2 mile.

Shoreline erosion, measured at stations located at 100-foot intervals around the margins of the lake, was found to be a major source of …

Sediment Properties And Depositional Environment Of The Minnelusa Formation (Permo-Pennsylvanian), Northern Black Hills, South Dakota And Wyoming, El-Magtuf Taleb Taleb

Masters Theses

"Permo-Pennsylvanian sedimentary rocks of the Minnelusa Formation of the Black Hills uplift, South Dakota and Wyoming, can be divided into upper, middle and lower divisions on the basis of lithology. The upper portion of 150 to 200 feet consists of gray and yellow sandstone, with some carbonates and shales in some sections. The middle portion, about 200 to 220 feet thick consists of gray and red sandstone with carbonate members including the prominent dolomite member at the base; some of the carbonates are cherty. The lower portion, 20 to 60 feet thick, consists of pink sandstone, arenaceous dolomite and thin …

Nebraska Groundwater Level (Decline & Rise), 1971

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Shaded Topographic Map Of Nebraska, Conservation And Survey Division

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Deux Monolistrini Nouveaux (Crustacea, Isopoda) Des Eaux Souterraines De Croatie, Christa L. Deeleman-Reinhold

International Journal of Speleology

A new subspecies and a new species are described: Monolistra (Monolistra) caeca meridionalis nov. subspec. was found in three caves in the northern part of Croatia, Yougoslavia. It is distinguishable from the typical form principally by the thin, acuminate form of the protuberance of the protopodite of the 2nd male peraeopod, by the endopodite of the 1st pleopod which bears 3-4 setae (1-2 in M. c. caeca), by the somewhat wider endopodite of the 3rd pleopod and by the shorter, only slightly curved uropods. A sketch shows the situation of 6 newly discovered localities in northern Croatia, 3 of …

Note On Lepidoptera From Bulgarian Caves, Andrzej Skalski

International Journal of Speleology

This paper is a report on Lepidoptera collected in 1960 in some caves of the Stara Planina Mountains (Bulgaria). In three caves in the environs of Lakatnik the following species were found: Acrolepia granitella Tr., Acrolepia pulicariae Klim., Autophila limbata Stgr., and Triphosa sabaudiata Dup. Two species (Acrolepia pulicariae Klim. and Autophila limbtia Stgr.) are new for both the cave fauna of Bulgaria and fauna of Bulgaria.

The Subterranean Fauna Associated With The Blind Palaemonid Prawn Typhlocaris Galilea Calman, Moshe Tsurnamal, Francis Dov Por

International Journal of Speleology

Exploration of the subterranean tract of the spring of En-Nur (at the North end of Lake Tiberias) by scuba diving and by use of new collecting methods, led to the discovery of a living community associated with the blind prawn Typhlocaris galilea. A rich growth of sulphur bacteria and of pigmentless Cyanophyceae from the trophic basis in this peculiar biotope. Representatives of three hypogeic crustacean orders have been found as well as some peculiar gastropods, nematods and oligocaets. The latter are the main food of Typhlocaris galilea.

A New Cave Amphipod Crustacea From Japan, Masuzo Uéno

International Journal of Speleology

A new eyeless Amphipod Crustacea 5 mm long was found in Himisé-dò Cave in Tokushima Prefecture, Shikoku. The inner ramus of its third uropod is nearly as long as the unijointed outer ramus. The accessory flagellum of the first antenna consists only of a single joint. The first maxilla is distinctive in its small palp which does not extend beyond the apical margin of the outer plate and bears only an apical seta. In these characteristic features the present form is different from any known species of the genera of the Crangonyx and Hadzia groups and seems to belong to …

Quaire Nouvelles Bathynella (Crustacea, Syncarida) De Roumanie: De Nouveau Sur Le «Dilemme Bathynella Natans Vejd», Eugène Serban

International Journal of Speleology

The paper presents the diagnosis of 4 new Bathynella species found in Romania: B. paranatans nov. sp., B. boteai nov. sp., B. motrensis nov. sp. and B. plesai nov. sp.; a discussion on B. cf. scythica Botosàneanu et Damian is also given. The morphological features which were used are the general and the fine structure of the genital pereiopode of the male (Pl. 5—8), the chaetotaxy of the maxillula, maxilla, thoracic appendages, uropods and furca. The presence of the distal (coxal) epipodite on the first pereiopod in B. paranatans nov. sp., distinguishes this species from the others (Pl. 1—4). The …

Food And Feeding Habits Of The Troglobitic Carabid Beetle Rhadine Subterranea, Robert W. Mitchell

International Journal of Speleology

Food and feeding habits of a population of the troglobitic carabid beetle Rhadine subterranea inhabiting Beck’s Ranch Cave, Williamson Co., Texas, were investigated. Observational and experimental data demonstrate that a primary food source of this beetle is the eggs of cave crickets (Ceuthophilus spp.). The beetles locate eggs by selective digging into substrata where cave crickets have oviposited. Chemoreception and mechanoreception are important in the location of oviposition sites.

Preference Responses And Tolerances Of The Troglobitic Carabid Beetle, Rhadine Subterranea, Robert W. Mitchell

International Journal of Speleology

Studies were made on the preference responses and tolerances of the troglobitic carabid beetle Rhadine subterranea to light, temperature, and relative humidity. The beetles are weakly photonegative and appear to have a strong preference for atmospheres of low saturation deficit. Both these responses seem to be orthokineses. They have a strongly developed temperature sense, and their temperature preferendum shifts seasonally. This response seems to be a klinotaxis. They are neither strongly stenothermal nor stenohygrobic. The preference responses, especially that of temperature, are probably mechanisms tending to restrict the beetles to their habitat. The tolerance data suggest that the epigeum could, …

A New Species Of The Subterranean Amphipod Genus Allocrangonyx (Gammaridae), With A Redescription Of The Genus And Remarks On Its Zoogeography, John R. Holsinger

International Journal of Speleology

The systematics of the North American, subterranean amphipod genus Allocrangonyx are revised and two species are recognized - A. pellucidus (Mackin) and A. hubrichti, new species. Allocrangonyx is critically compared with the European genus Niphargus and several endemic North American genera of the Crangonyx group. Because of its unique morphological position, Allocrangonyx is removed from the Crangonyx group and placed in the newly designated AlIocrangonyx group. Some factors believed to have influenced speciation within the genus are discussed in some detail.

Durées De La Mue, De L'Intermue Des Adultes, Et Longévité De Stenasellus Virei Dollfus (Crustacé Asellote Troglobie), Guy Magniez

International Journal of Speleology

The author’s observations of numerous cases of molting in the hypogean asellid Stenasellus virei Dollfus, 1897 appear to show that the phenomenon occurs in two steps. The loss of the anterior exuvium is separated from that of the posterior exuvium by a period of 8 to 16 days in adults from cavernicolous populations of Stenasellus virei in the Pyrenees and Cantabrian Alps. The intermolts last from 9 to 18 months for the same individuals. One must allow, for this species, a minimun life span of 10 years. Values of the same order of magnitude are anticipated for the two other …

Contribution À L'Étude Des Mycetophilidae Des Grottes De Roumanie Avec La Description De Deux Espèces Nouvelles, Anca Burghele-Balacesco

International Journal of Speleology

The study of Mycetophilidae collected in Romanian caves during these past years enables us to add 24 species to those already known from the country, among which two are new for science: Exechia dumitrescui n. sp. and Rhymosia matilei n. sp. Sixteen species belonging to the genus Macrocera, Zelmira, Leia, Exechia, Rhymosia, Allodia, Mycetophila, Zygomyia and Deolpsis have never been mentioned before for the subterranean environment. Some of these species are extremely rare: Exechia januari Lundst., E. parallela Edw., Rhymosia tarnani Dzeid., Phronia kowarzi Dzicd., Mycetophila rudis Winn.

Die Isopoda Terrestria Der Höhlen Von Ereğli Am Schwarzen Meer (5. Beitrag Zur Kenntnis Der Türkischen Isopoden), Hans Strouhal

International Journal of Speleology

Dr. Klaus Dobat (Tübingen) and Madame Dobat have collected the following terrestrial Isopods from caves of Eregli on the coasts of the Black Sea, North of Turkey: 1) Ligidium (Ligidium) assimile sp. nov., trogloxene widely distributed in the northern Anatolian territories; 2) Chasmatoniscus oculatus gen. et sp. nov., troglophile; 3) Trichoniscus (Trichoniscus) heracleotis sp. nov., troglobic; 4) Cylisticus (Platycylisticus) dobati subgen. et sp. nov., troglophile; 5) Cylisticus (Cylisticus) mechthildae sp. nov., troglobic. The author gives the descriptions together with figures of all these new Oniscoidea in this paper, M. Dobat describes the caves of Ereğli and lists the animals herein …

Les Milieux De Vie De Stenasellus Virei Dollfuss, 1897 (Crustacé Asellote Troglobie): Données Préliminaires, Guy Magniez

International Journal of Speleology

Stenasellus virei is now known from 77 localities (caves, phreatic waters and underflow of some rivers) of the eastern Aquitanian basin, central and eastern Pyrenees, and of Spain. A classification of the different biotopes of the species is attempted herein, and some of their characteristics are summarily described. This cavernicolous species can now be viewed in a new light, as much ecological as systematic or biogeographic.

Trichoniscoides Saeroeensis Lohmander, An Isopod Crustacean New To The British Fauna, Edith M. Sheppard

International Journal of Speleology

The terrestial isopod Trichoniscoides saeroeensis Lohmander, new to the British fauna, is recorded fram the dark zone of disused mines in Lancashire; the paper includes notes on its systematic position and certain morphological characters as well as its affinities. The origin and geographical distribution of the species, together with that of the other two species recorded in England [T. albidus (Budde-Lund) and T. sarsi Patience], is discussed.

Distribution And Dispersion Of The Troglobitic Carabid Beetle Rhadine Subterranea, Robert W. Mitchell

International Journal of Speleology

Intracave distribution and dispersion patterns within a population of the troglobitic carabid beetle Rhadine subterranea were studied. Distribution was markedly heterogeneous, the beetles being almost entirely restricted to substrata of deep, uncompacted silt. Dispersion of the beetles on the silt substrata did not depart from random expectation. It is shown, however, that this is a functionally emergent pattern resulting from an intrasex repulsion related to feeding which tends to produce regularity counterbalanced by an intersex attraction related to reproduction which tends to produce contagion.

Stenasellus Skopljensis Thermalis Ssp.N. (Crustacea, Isopoda) D'Une Source Chaude En Bosnie, Milan Meštrov, Romana Lattinger-Penko University Of Zagreb

International Journal of Speleology

The new subspecies Stenasellus skopljensis thermalis, from Banja Luka (Bosnie, Yugoslavia) is described. From the ecological point of view this form differs from the others because it inhabits underground waters of elevated temperature (240°C). Another constantly abundant species, St. hungaricus thermalis Mestrov, also occurs in Yugoslavia under the same ecological conditions, in the warm springs of Podsused near Zagreb. This indicates that these underground waters at elevated temperature are not accidental but preferred habitats for these forms, and confirms once again that thermal waters of this type are the biotopes-refuges in which certain relic forms are retained.

Trace Base Metals, Petrography, Rock Alteration Of The Productive Tres Hermanas Stock, Luna County, New Mexico, Peethambaram Doraibabu

Doctoral Dissertations

"Zinc, lead and minor copper-bearing manto-type and vein- type deposits occur in Paleozoic sedimentary rocks adjoining the Tres Hermanas quartz monzonite stock, Luna County, New Mexico. In an attempt to prove or disprove a possible genetic relationship between these mineral deposits and the stock, 99 half-mile or closer orthogonal grid samples from the stock and 22 soil samples from a connecting alluvial area to the north were analysed by atomic absorption technique for trace contents of zinc, lead and copper. Thirty-two of the rock samples were selected on a wider grid and petrographically studied and modal analyses calculated. Argillic, sericitic …

Distribution Of Trace Elements In Olivines And Proxenes - An Experimental Study, Melvin Leroy Bird

Doctoral Dissertations

"Olivine, pyroxene,and spinel were crystallized in the ternary system anorthite-forsterite-silica to which trace amounts of the transition metal ions Cr³⁺, Fe²⁺, Mn²⁺, Co²⁺, Ni²⁺, and Cu²⁺ had been added. The resulting concentrations of the transition metal ions in the liquid and crystalline phases were determined using the electron microprobe. The results, given as free energies and partition functions, indicate the order of substitution of the dipositive ions in all crystals to be Ni²⁺, Co²⁺, Mn²⁺, Cu²⁺, and Fe²⁺ according to the predictions of crystal field theory. The ion Cr³⁺ substituted in greater or lesser quantities depending on the crystalline phase. …

The Vibrational Modes Of Spheroidal Cavities In Elastic Solids, David Stewart

Doctoral Dissertations

"A general analysis of all possible cavity shapes is given with a discussion of the mathematical difficulties involved for the various cases. Special emphasis is given to cavity shapes describable in terms of the coordinate surfaces of coordinate systems separating the scalar wave equation. 112 such shapes are identified and discussed. Free boundary condition equations for spheres and spheroids are derived in complete generality in terms of potentials. The difference in the vibrations of a solid and those of a cavity of the same shape is discussed and made clear. The impossibility of deriving a frequency equation for uniform radial …

Geology, Geochemistry And Lava Tubes In Quaternary Basalts, Northeastern Part Of Zuni Lava Field, Valencia County, New Mexico, James Douglas Causey

Earth and Planetary Sciences ETDs

Basaltic volcanism in the northeastern part of the Zuni lava field is related to a north-northeast trending regional fracture system. This is shown by elongation of centers and their alignment. However, .the fractures do not control the direction of lava tubes.

There are three distinct stages of volcanic activity common to the Zuni lava field:

1) early pyroclastic eruptions,

2) quiescent flows or fissure eruptions􀀅

3) late pyroclastic eruptions.

Evidence for the first stage is sometimes lacking, but the second and third stages can always be seen.

The basalts range from weakly tholeiitic to alkali in nature. Potassium content varies …

Bioassay Procedures For Oil And Oil Dispersant Toxicity Evaluation, Gilles Laroche, Ronald Eisler, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

Hazards to marine and estuarine fauna associated with offshore drilling of oil and with transport of large quantities of oils via tankers are numerous and understandable. At present, there is a growing body of evidence on adverse effects to these organisms of crude oil (1) (2) (3) (4) (5) (6) (7) (8) (9) and chemical oil counteracting agents or dispersants (5) (6) (9) (10) (11) (12) (13) (14) (15) (16) (17). These effects are well summarized by Smith (18) and by Carthy and Arthur (19).

Comparatively few workers have studied the influence of oil-dispersant mixtures of marine life. Studies by …