identifier: Ash, Michael R. <https://research.library.mun.ca/view/creator_az/Ash=3AMichael_R=2E=3A=3A.html>   (2007) Constrained inversion of gravity data over the Ovoid and Mini-Ovoid in the Voisey's Bay Ni-Cu-Co deposit, Labrador.  Masters thesis, Memorial University of Newfoundland.

abstract: The Voisey's Bay Nickel-Copper-Cobalt deposit provides a unique opportunity to test the latest minimum-structure gravity inversion program developed by the University of British Columbia-Geophysical Inversion Facility (UBC-GIF). The success of generating geologically meaningful results depends on the inherent uncertainty and spatial properties of the raw gravity data set, and on the statistical properties and spatial distribution of the rock density data. The objective of this study is to examine the effects of the initial survey configuration and the knowledge of subsurface parameters on the refinement of the inversion models. Density models derived using geostatistical methods can be assigned weights which reflect model confidence and spatial correlations. The spatial distribution of the borehole samples and the developed geostatistical models control the lateral and vertical resolution of the inversion. -- The constraints applied in the gravity inversion were in the form of data from a significant number of drill holes penetrating the Ovoid and Mini-Ovoid. From these, refined models of the depth of the overburden and of the density distribution within the body were developed. To explore the utility of gravity inversion as a forecasting and planning tool, inversions were constrained using density models derived from 50%, 25% and 5% of the original number of drill logs. Reasonable models of the Ovoid were obtained when the thickness of the overburden was constrained. The inversion results indicate that incorporating drill log information into the inversion process, early in a drilling program, can improve our knowledge of the subsurface density distribution.


identifier: Chaoka, Thebeyame R. <https://research.library.mun.ca/view/creator_az/Chaoka=3AThebeyame_R=2E=3A=3A.html>   (1988) The geology, petrology, and geochemistry of the Kanye volcanics and Nnywane Formation, Ramotswa area, southeast Botswana.  Masters thesis, Memorial University of Newfoundland.

type: Thesis NonPeerReviewed

format: application/pdf application/pdf

abstract: Two major felsic volcanic sequences of late Archean to early Proterozoic age are distinguished in southeast Botswana: the Kanye Volcanics and the Nnywane Formation. The Kanye Volcanics are red, purple and grey, dense, porphyritic rocks with pink and white feldspar phenocrysts in a felsitic to aphanitic groundmass. Presently, these rocks are regarded as part of the Gaborone Granite Complex. In addition to the volcanic rocks, the complex contains rapakivi and alaskitic granites, leucocratic microgranites, porphyritic granophyres, and variable amounts of mafic and ultramafic rocks. -- The Nnywane Formation is an interbeded sequence of felsic flows, porphyries, tuffs and agglomerates. It is part of the Lobatse Volcanic Group which is correlated with the early Proterozoic Ventersdorp Supergroup of South Africa. -- Despite the current correlation of the Kanye Volcanics and the Nnywane Formation with different stratigraphic units and the suggestion that these rocks are products of two distinct magmatic events, the evidence is not irrefutable. In addition, previous explanations for the origin of these volcanic rocks are inconsistent with available petrological, geochemical and geochronological data. -- This study examines the relationship between the Kanye Volcanics and the Nnywane Formation in the Ramotswa area. The geology of the Ramotswa area is described. Major, minor and rare-earth element analyses of numerous samples from the Kanye Volcanics, porphyritic granophyres, leucocratic microgranites and the Nnywane Formation are discussed. Chemically, the Kanye Volcanics, porhyritic granophyres and Nnywane Formation have alkaline affinities, while the intrusive microgranites have major and trace element characteristics of within-plate type granites. Further, comparison of whole-rock major, trace and rare-earth element abundances shows that the Kanye Volcanics and porphyritic granophyres are virtually identical. In contrast, the microgranites have higher TiO₂, Al₂O₃, total iron, CaO, Sr, Zr and Ba and lower SiO₂, average K₂O, Rb, Y and Nb relative to the Kanye Volcanics and porphyritic granophyres. The Nnywane Formation has anomalously high SiO₂ and K₂O and low Na₂O and CaO and more variable Rb, Sr and Ba values relative to the Kanye Volcanics, but relatively the same range TiO₂, Al₂O₃, MgO, total iron as Fe₂O₃, Y, Nb, Ga and Zr. Rare-earth element abundances of these four units are very similar, but the microgranite has a more pronounced negative Eu anomaly. -- Contrary to previous interpretations, these results suggest that the granophyres, Kanye Volcanics and Nnywane Formation (excluding mafic units) crystallized from essentially the same magma. The anomalous SiO₂, K₂O, Na₂O, CaO, Rb, Sr and Ba concentrations of the Nnywane Formation are probably due to subsequent hydrothermal and groundwater alteration. -- However, the results of this study are inconclusive regarding the relationship of the leucocratic microgranites to the other units.


identifier: Hibbard, James P. <https://research.library.mun.ca/view/creator_az/Hibbard=3AJames_P=2E=3A=3A.html>   (1976) The southwest portion of the Dunnage Mélange and its relationships to nearby groups.  Masters thesis, Memorial University of Newfoundland.

abstract: The Dunnage Mélange is typified by slumped blocks of clastic sediment and mafic volcanics set in a dark shale matrix. It outcrops for 40 km. southwestward from its type area in Dildo Run, with a maximum outcrop width of 13 km. Previous work has been confined to the Dildo Run area, where the interpretation of stratigraphic relationships of the Dunnage Mélange and surrounding units has been controversial. The present study focusses on the southwest portion of the mélange in an attempt to resolve this controversy as well as to investigate the character and extent of this portion of the mélange. -- The southwest portion of the mélange overlies and interdigitates with the gabbro-infested, Ordovician New Bay Formation. The mélange contains gabbro blocks that are confined to the area proximal to this transition zone. Similarly, in the northwest portion, the largest mafic volcanic blocks define a wide zone that is correlative westwards with the Lawrence Head Volcanics of the Exploits Group. Along its northwest border, the Dunnage is locally conformable with Caradocian or later, shale and greywacke units, though in most places this contact is fault-modified. These relationships imply that the Dunnage is an easterly chaotic equivalent to part of the Exploits Group. -- The chaotic nature of the mélange can be attributed primarily to discontinuous, dominantly extensional, soft rock deformation of strata due to massive slumping. This possibly occurred as a single progressive event and involved rocks in various stages of lithification. Forces responsible for soft rock deformation existed from New Bay depositional time until the Lower Silurian, intensifying prior to the Caradocian, following which they decreased and terminated. The chronology of later penetrative events is uncertain, though most hard rock structures are presumed to be Devonian, as flat lying Carboniferous strata occur elsewhere in the Exploits Zone. -- Regional relationships indicate that the Dunnage Mélange occupied a basin on the southeast flank of a Lower Ordovician island arc complex. Previous workers have viewed this fact to indicate that mélange formation was related to an active, west dipping, subduction zone. The present study reveals that no valid criteria exist for interpreting the mélange terrane to have occupied an active trench. Rather, the tectonic position of the mélange and its apparent synchroneity with other Newfoundland mélanges suggest it was a massive slump during widespread Taconic events, though the direct cause of slumping remains ambiguous.


identifier: Isler, Ekrem Bursin <https://research.library.mun.ca/view/creator_az/Isler=3AEkrem_Bursin=3A=3A.html>   (2005) Late quaternary stratigraphic and tectonic evolution of the northeastern Aegean Sea.  Masters thesis, Memorial University of Newfoundland.

abstract:
The late Quaternary-Recent stratigraphic and tectonic evolution of the NE Aegean Sea, between the Islands of Bozcaada and Lesbos and the Biga Peninsula, is examined using ~1600 km of seismic reflection and side scan profiles and six cores collected during cruises in 1998, 2000, 2002, and 2003. -- Detailed examination of the seismic reflection profiles showed that several vertically stacked depositional sequences developed within three NE-SW trending basins. These depositional sequences exhibit oblique- to complex oblique-sigmoid internal seismic reflection configuration and are separated from one another by shelf-crossing unconformities. The chronology of the depositional sequences is constrained by seven radiocarbon and two U/Th dates on in situ shell samples extracted from five cores. Sedimentation rates calculated by using these dates range between 19 cm/kyr and 30 cm/kyr. The ages and the stacked architecture of the depositional sequences, together with the correlations with the oxygen isotopic stages and global sea-level curve reveal that these seaward-prograded delta sequences were developed in a sufficiently rapidly subsiding shelf environment during successive global eustatic sea-level falls associated with late Quaternary glaciations. The progradation of the depositional sequences decelerated and eventually halted shortly after the subsequent major transgressions during which the shelf-crossing unconformities were generated. The terrigenous materials transported throughout the development of the depositional sequences originated from the Tuzla, Karamenderes, and Dümbek rivers draining the
Biga Peninsula. -- Seismic reflection profiles showed no evidence for a major E-W-trending fault system, suggesting that the western continuation of the central strand of the North Anatolian Transform Fault does not exit into the Aegean Sea at Ezine. Detailed mapping of the seismic data showed that two major faults, A₁ and β₈, constitute the main fault system in the study area. The Baba Burnu Basin is bounded by these two faults, and is interpreted to develop either as a rhomboidal pull-apart basin or as a half-graben. In the case of being a pull-apart basin, the faults A₁ and β₈ represent the seaward extension of the southern strand of the North Anatolian Transform Fault where it initially runs ~ NW-SE (i.e., fault A₁) and then deflects toward NE-SW (i.e., β₈) forming a releasing bend. It then continues further southwest along fault β₈ and extends as far as the North Skyros Basin. In the case of being a half-graben, the central strand of the North Anatolian Transform Fault continues west in an ENE-WSW direction in the Gulf of Edremit and then it deviates toward southwest off the Island of Lesbos.


identifier: Elias, Peter <https://research.library.mun.ca/view/creator_az/Elias=3APeter=3A=3A.html>   (1981) Geochemistry and Petrology of Granitoid rocks of the Gander zone, Bay D'Espoir area, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Two pulses of granitoid plutonism have been recorded in the Bay D'Espoir area: (1) The Northern Granitoids were intruded discordantly into medium to low grade sedimentary and volcanic rocks of the Bay D'Espoir Group, at ca. 430 Ma. (2) The Southern Granitoids were intruded concordantly into gneisses and migmatites of the Little Passage Gneisses at ca. 350 Ma. Although the granitoids occupy a cross section through the Gander Zone, they do not show any systematic petrographic, geochemical, or isotopic variation from north to south. -- The "Straddling Granite", formerly considered to lie astride the Gander-Avalon Zone boundary, consists of at least two separate plutons on either side of the boundary. Although no economic mineral deposits have yet been discovered, leucogranites with ore-bearing potential occur in sufficient quantity to warrant further investigation. Structural, stratigraphic, geochemical and isotopic evidence suggest that the granitoids were intruded into a back-arc basin during the Acadian Orogeny.


identifier: Cameron, Kevin J. <https://research.library.mun.ca/view/creator_az/Cameron=3AKevin_J=2E=3A=3A.html>   (1986) Petrochemistry of mafic rocks from the Harbour Main Group (Western Block), Conception Bay, Avalon Peninsula, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Volcanic rocks and associated igneous intrusions outcropping in southern Conception Bay, central Avalon Peninsula, represent the upper portion of the late Precambrian (Hadrynian) Harbour Main Group. The Group here consists of three ash-flow tuff (ignimbrite) sequences, associated terrestrial sediments, and minor intrusive rocks, overlain by a thick succession of subaerial mafic lavas. Although the rocks have undergone moderate deformation, pristine igneous textures (eg. glass shard outlines and ophitic texture) are well preserved. Metamorphism has reached only lower greenschist (prehnite-pumpellyite) facies resulting primarily in a reconstitution of most of the primary phases. Plagioclase is replaced by epidote and prehnite and olivine by serpentine, chlorite, and iddingsite while pyroxene remains as a relict phase in most of the rock units. -- The stratigraphy of the mafic sequence can be divided into three main rock units. The lower portion consists of lavas rich in clinopyroxene (augite) phenocrysts and displays subalkaline trends on various discrimination diagrams. The main part of the sequence is made up of flows containing pseudomorphed olivine and plagioclase phenocrysts in addition to plagiophyric mafic sills. The chemical affinities displayed here are subalkaline to transitional trends. The stratigraphically highest lavas outcrop just south of the main map area and are characterised by a lack of phenocrystic phases and mildly alkaline chemical trends. Variations in selected major and trace element analysis indicate that these mafic rock units may be related to one another by some process of differentiation, probably involving fractionation of olivine, clinopyroxene, and plagioclase from an alkali basalt parental magma. Careful use of discrimination diagrams and field relations of associated rock units strongly indicate that these mafic rocks were erupted in a non-orogenic tensional tectonic environment such as an area undergoing strike-slip faulting (pull-apart basin), block-faulting, or possibly a combination of both of these (ie. a transtension regime). A modern day analogue may be the Basin and Range Province of the southwestern United States.


identifier: Kay, Elizabeth Alexandra <https://research.library.mun.ca/view/creator_az/Kay=3AElizabeth_Alexandra=3A=3A.html>   (1981) A geochemical and fluid inclusion study of the arsenopyrite-stibnite-gold mineralization, Moreton's Harbour, Notre Dame Bay, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Mineralized hydrothermal veins of the Moreton's Harbour area, occurring within a thick sequence of dominantly basaltic pillow lavas and pyroclastic rocks, are concentrated within a central volcaniclastic unit and intimately associated with felsic dykes. There are about fifty veins, up to 30 cm thick, occupying fractures perpendicular to the bedding. They can be broadly classified into three types, viz. I arsenopyrite-dominated, II stibnite-dominated, and III base metal + arsenopyrite-dominated, all with quartz and calcite as the major gangue minerals. -- Type I veins are Au-rich, type III are Au + Ag-rich, and type II are Au-poor but slightly enriched in Pd. Fluid inclusion data indicate deposition of Au-rich type I veins from CO₂-rich low salinity fluids above 300ﾟC, whereas the type II Au-poor veins were deposited from relatively saline low-CO₂ fluids at temperatures below 220ﾟC. Both fluid inclusion and arsenopyrite composition data suggest pressures of 900 to 1500 bars, in agreement with lithostatic pressure indicated by the overlying volcanic pile. -- The Au mineralization is considered to have resulted from temperature decrease through 300ﾟC, below which the stability of Au-complexes declines abruptly. Carbon dioxide abundance suggests the involvement of carbonate complexes, with retrograde boiling resulting in loss of CO₂ and drop in carbonate activity, brecciation of arsenopyrite and deposition of calcite. A range of criteria suggest that the fluid was derived from felsic magma which produced the dykes and pyroclastic rocks, and hence was penecontemporaneous with the felsic volcanic activity. Concentration of veins within the central pyroclastic unit results from the fact that it occurs at a depth within the volcanic pile with suitable P-T-X conditions for deposition.


identifier: Greene, Bryan A. <https://research.library.mun.ca/view/creator_az/Greene=3ABryan_A=2E=3A=3A.html>   (1962) Geology of the Branch-Point Lance area.  Masters thesis, Memorial University of Newfoundland.

title: Geology of the Branch-Point Lance area

abstract: This thesis is concerned with the largest of the Cambrian occurrences on the Avalon Peninsula in southeast Newfoundland, that in the Branch - Point Lance area, on the western shore of St. Mary's Bay. The area is, in general, a gently rolling, marshy, drift-covered expanse, behind steep sea cliffs, and has a land area of approximately forty-five square miles. -- The oldest formation considered in this report is the supposedly late Precambrian Random quartzite, which disconformably underlies definite Cambrian strata throughout the area. Cambrian rocks begin with the thin conglomerates, sandstones, and shales of the Bonavista formation, which are followed by the limestones and shales of the Smith Point formation. Lower Cambrian strata end with the red and green shales at the base of the Redland Cove formation. -- The red and green shales of the upper part of the Redland Cove formation contain a Paradoxides bennetti fauna, and are hence of early Middle Cambrian age. These are overlain by the dark-grey shales and calcite-rich tuffe of the Deep Cove formation, which contains the Paradoxides hicksi and Paradoxides davidis zones. Middle Cambrian strata end with the siltstones of the Big Head formation. -- The Upper Cambrian Elliot Cove formation, of interbedded shales, siltstones, and sandstones, in the youngest consolidated sedimentary deposit in the area. -- Sille, dykes, and two small stocks, of gabbroic composition, intrude the Cambrian strata, and are affected by later folding and faulting. -- The strata, in general, are thrown into simple, north-northeast trending, open folds, with northwest-dipping axial planes, and doubly-plunging axes, probably the result of the Devonian Acadian orogeny. -- Faults in the area are steep and transverse to the regional strike, with right-lateral strike-slip displacements, and are younger than the folding.


identifier: Stevens, Robert K. (Robert Keith) <https://research.library.mun.ca/view/creator_az/Stevens=3ARobert_K=2E_=28Robert_Keith=29=3A=3A.html>   (1965) Geology of the Humber Arm area, west Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The area investigated includes the type section of the Humber Arm series along Humber Arm, as well as an area east of Blow Me Down Brook on the south shore of the Bay of Islands, the south shore of Middle Arm, and Woods and Eagle Islands. Five newly named formations can be recognized in the sedimentary part of the sequence. Graptolites found in the third youngest formation indicate a Tremadocian age and the series as a whole probably ranges in age from Middle Ordovician to Lower Cambrian. The youngest rocks are volcanic flows and associated basic and ultrabasic intrusions, which form the Bay of Islands Igneous Complex. They were not investigated. The Humber Arm series has been much deformed. The main folded structure is the Humber Arm synclinorium. Associated with this fold are dislocations ranging in magnitude from major reverse faults or thrusts, to strain-slip cleavage. High angle faults cut these structures. The stratigraphy is locally disrupted by zones of chaotic deformation which also mark the junction between the Humber Arm series and the main carbonate sequence to the east of the area. This sequence is a contemporaneous facies of the Humber Arm series but underlies it. The best explanation of the geological setting of the Humber Arm series is that it is allochthonous, being emplaced as a klippe during Taconic times, thus accounting for the superposition of older Humber Arm rocks on the youngest rocks of the main carbonate sequence, the facies contrast between the Ordovician parts of the two sections, and the geology of the Rattler Block. This block is interpreted as an anticlinal window through which a lower tectonic slice of the Humber Arm series is seen. The chaotic zones are interpreted as rubble zones produced during the gravitational gliding of the klippe. Three structural units within the klippe are recognized; a lower slice seen through the Rattler window, the main Humber Arm slice and a slice containing the Bay of Islands Igneous Complex with some associated sediment. Differential movements within the klippe are thought to have produced these units.


identifier: Malpas, John Graham <https://research.library.mun.ca/view/creator_az/Malpas=3AJohn_Graham=3A=3A.html>   (1971) The petrochemistry of the Bull Arm Formation near Rantam Station, southeast Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The Bull Arm Formation of late Precambrian volcanic rocks crops out on the Avalon Peninsula and on the Isthmus of Avalon, S.E. Newfoundland. An area of approximately nine square miles on the Isthmus was mapped and sampled in the summer of 1970. The area was chosen because it showed a complete cross section of rock types exposed in fresh roadside cuttings and therefore easily accessible. -- The rock types are mainly rhyolitic flows, ignimbrites and tuffs, minor late basaltic flows and scoria, and associated volcanogenic sediments. A relative lack of intermediate derivatives makes the distribution essentially bimodal. -- Features such as well preserved igneous flow structures, and the presence of ignimbrites and red sediments, suggest a subaerial environment of deposition for the volcanics, with local reworking of deposits in superficial ponds and lakes to give graded and cross-bedded sediments. -- The rocks have undergone mild deformation into open folds with associated axial planar cleavage visible in some tuffaceous and sedimentary deposits. This deformation appears to be Acadian in age and was accompanied by metamorphism to low greenschist grade. In the tuffs and some flows there is a noticeable development of epidote and zoisite as matrix alteration products. -- Metasomatic effects mask the original identity of the rocks and both chemically and mineralogically they may now be ascribed to a spilite/keratophyre suite. The development of secondary albite 'phenocrysts' visibly accompanies epidotisation in thin section. These are thought to be a product of metasomatism. In one area, this metasomatism is overprinted by a (contemporaneous?) potassium enrichment which appears to be structurally controlled. Here, rhyolites with increased potassium contents have low sodium and show a progressive development of orthoclase at the expense of albite, in the phenocrysts. The metasomatism explains the anomalously young age date of 467 ± 30 m.y. and the high Rb/Sr ratios obtained for the Bull Arm Formation by previous workers. It may also account for a local barite/galena mineralisation. -- Two lines of evidence, Zr values and bulk analyses, suggest an original calc-alkaline affinity for the rocks, but the bimodal distribution of rock types remains difficult to interpret.


identifier: Quigley, Colin Harding <https://research.library.mun.ca/view/creator_az/Quigley=3AColin_Harding=3A=3A.html>   (1981) Folk dance and dance events in rural Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis is an ethnography of folk dance in Newfoundland based on a holistic view of dance behavior in culture. Descriptions of dance movements and their performance contexts are presented. Research was conducted in archives, through interviews with informants, and by means of observation in the field. Detailed study in several communities around Plate Cove East, Bonavista Bay, has served as a standard for comparison among these sources. -- The dances are classed as group, individual, or couple in organization. Informants' descriptions of dances are used to identify significant aspects of movement articulation within this tradition. Examples of each dance type are described, and one, a square dance, is transcribed from a videotape recording. The transscribed performance is compared with other notated variants. A repertoire of basic movement possibilities and structural movement units is identified, and a common structural framework among the different versions is deduced. -- The dance event contexts are described in detail, with "house times" and "hall times" identified as the two major types. Informants' descriptions of dance events illustrate the variety of actual practice. The expression of sexuality, rivalry, and integrative goals are found recurrently in many aspects of the behavior typical at dance events. -- The dance movements are interpreted as enactments of the same concerns which permeate their performance contexts. The means by which the Newfoundland folk dances embody functions, social relations, and cultural values are identified using the concepts of proxemics and theories of dance communication. -- The many changes in Newfoundland dance culture since the Second World War -- often perceived as the product of abrupt abandonment of older forms -- are examined as a reorientation of the expressive role of dance in response to shifting social emphases within the dance events. The use of older forms in new contexts is discussed as part of Newfoundland's "cultural revival."


identifier: Payne, John Garnett <https://research.library.mun.ca/view/creator_az/Payne=3AJohn_Garnett=3A=3A.html>   (1974) The Twillingate granite and its relationships to surrounding country rocks.  Masters thesis, Memorial University of Newfoundland.

abstract: The volcanic rocks of the Twillingate area are divided into two groups separated by the intrusion of the Twillingate Granite. The Sleepy Cove Group, comprising mixed mafic and silicic volcanic rocks, is intruded pre-tectonically by the Twillingate Granite, which is an unusual, homogeneous, trondhjemite pluton. These two units are cut post-tectonically by mafic dykes of the Herring Neck Group which is composed of mafic volcanic rocks. All three units are cut by a variety of mafic, acidic and alkaline dykes of different ages. -- The one major deformation in the area produced a fabric in the Sleepy Cove Group and the Twillingate Granite that is very intense in the south of the area but generally becomes faint and absent to the north. The Herring Neck Group is post-tectonic with respect to this fabric. Earlier refolded fabrics are present in some mafic inclusions in the Twillingate Granite. -- The distinctive chemistry of the Twillingate Granite when compared to other trondhjemites and experimental data suggests that it was produced by partial melting of oceanic lithosphere on a subduction zone. Both groups of volcanic rocks are considered to be island arc tholeiites having a consanguinous and nearly coeval origin with the granite. -- A model is postulated of a late Cambrian to early Ordovician island arc developed on older ocean crust. The sequence of mafic and acidic magmatism and deformation is thought to be fairly continuous and occupy a short time span.


identifier: Lilly, H. D. (Hugh Dalrymple) <https://research.library.mun.ca/view/creator_az/Lilly=3AH=2E_D=2E_=28Hugh_Dalrymple=29=3A=3A.html>   (1961) Geology of the Goose Arm Hughes Brook Area.  Masters thesis, Memorial University of Newfoundland.

abstract: The regional setting for this thesis is in the central part of West Newfoundland. -- The examination is concerned with an area of approximately 250 square miles more or less lying between North Mountain, in the Bay of Islands, inclusive of the southern part of the mountain, and the Humber River west of Limestone Station. A small area located south of the river is also included. -- The bedrock of the area consists primarily of clastic and carbonate sediments ranging in age from Cambrian to Upper Ordovician which lie with unconformity upon earlier, more or less metamorphosed, Cambrian or Precambrian argillaceous and arenaceous rocks. -- The younger clastic rocks, which may have upper members of Silurian age, are in part overlain by and, to a lesser extent, intercalated with still younger volcanic rocks. Both the volcanic rocks and upper members of the clastic rocks have been intruded by large masses of ultrabasic and basic rocks and lesser bodies of granite. -- The clastic rocks are largely deltaic in character and consequently poorly fossiliferous. Moreover, the carbonate rocks have been largely recrystallized and well preserved fossils, suitable for identification, are few. Age determinations were, therefore, made by lithological correlations with adjacent areas where fossils have been better preserved. Large, easily recognized, exposures of the St.George group of Lower Ordovician age, which are abundantly fossiliferous to the south of the thesis area, provided the chief markers for these correlations. -- Evidence for an early phase of orogeny occurs in the upper beds of the main sequence of Ordovician carbonate sediments. The widespread occurrence of the younger clastic sediments and subsequent volcanic activity indicate that orogeny comprised a number of phases which took place over a rather prolonged period of time. -- A further orogenic phase is evidenced by the deformation of the younger clastic sequence and widespread metamorphism. -- A thrust of more than 6 miles is noted, and evidence for it is submitted on the basis of the superposition of pre-St.George rocks over Lower to Middle Ordovician rocks and their relationships to the nearest possible source facies. -- The occurrence of galena and sphalerite-bearing horizons in the carbonate rocks, and their possible origin, is briefly discussed. -- Generalized references are made to additional work outside the area in as much as it is necessary to show the overall relationship to the environment. A brief outline of some of the problems encountered in determining the relationships of the basal metamorphic rocks to the main carbonate sequences is also provided.


identifier: Taylor, David Alan <https://research.library.mun.ca/view/creator_az/Taylor=3ADavid_Alan=3A=3A.html>   (1980) Boatbuilding in Winterton : the design, construction, and use of inshore fishing boats in a Newfoundland community.  Masters thesis, Memorial University of Newfoundland.

abstract: The construction and use of inshore fishing boats is a distinctive and integral part of the culture of Newfoundland. Historically, the building of boats is one of the oldest traditions of material culture on the island. This thesis is a study of the living tradition of boatbuilding in the community of Winterton, Trinity Bay, Newfoundland. It attempts to describe the dynamics and functions of boatbuilding within the context of the community's social, economic and natural environment. -- The principal data for this work is derived from tape recorded interviews with seven Winterton boatbuilders, field measurements of boats, photographs of boats and boatbuilding activities, field drawings, and field observations. Fieldwork for the study was conducted in Winterton in 1978 and 1979. -- The central focus of the thesis is upon the three essential aspects of any object of material culture: design, construction, and use. In regard to design, a wide variety of factors, many of them conceptual, are examined, including: the transmission of boatbuilding knowledge; the use of moulds; the use of mental templates; performance correlatives; correction and improvement of design; experimentation; and, creativity. The process of construction is analyzed in two ways: by describing in detail the manner in which one man built one boat; and, by exploring variation in the factors which affect the construction activities of other boatbuilders. The question of boat use is applied to each of the four boat types constructed and used in Winterton (e.g. motor boat, rodney, bay punt, and speedboat). In addition to functional considerations, the genesis, evolution and general morphology of each type is discussed. -- Separate appendices contain: a boatbuilding survey questionnaire; portraits of informants; tables of offsets, stem and stern profiles, and lines plans of local boats; and, a glossary of terms used by Winterton boatbuilders. -- Because of the limited focus of this study, verifiable conclusions cannot be drawn about the nature of boatbuilding in other Newfoundland fishing communities. Confirmation of the existence of patterns of behaviour, in other communities, which are similar to those practiced in Winterton requires further research. To that end, this study provides a body of data for comparison, as well as theories and methodologies which may be applied in other localities.


identifier: Knight, I. (Ian) <https://research.library.mun.ca/view/creator_az/Knight=3AI=2E_=28Ian=29=3A=3A.html>   (1972) The geology of the Arkose Lake area, north of Seal Lake, Labrador, Canada.  Masters thesis, Memorial University of Newfoundland.

abstract: The Proterozoic sediments of the Seal Lake Group in the Arkose Lake area are here subdivided into the Arkose Lake Formation and the Majoque Lake Formation. -- The Arkose Lake Formation is subdivided into a Lower Member of coarse sandstones and grits and subsidiary conglomerates and an Upper Member of fine to coarse red sandstones with subsidiary conglomerates and red siltstones. Field, petrographic and statistical evaluation indicate deposition, by braided streams upon an alluvial fan, of immature, fluviatile sediments derived from a gneissose and granitic terrane to the north of the present area. -- The Majoque Lake Formation consists predominantly of subaerial basaltic flows with some thin sediment bands. Thin, weathered basalt profiles separate the sediments from the underlying basalts. Mineralogically and chemically, the basalts are transitional between alkali and tholeiite basalts. The sediments are composed predominantly of conglomerate, grit and sandstone with local, fine,pink quartzites. Field, petrographic and statistical data suggests that they represent coarse, immature, gravel and sand deposited under semi-arid conditions on a braided outwash plain that periodically covered a volcanic 'pediment'. They were derived from a gneissic-granitic and in part acid-volcanic terrane to the north. -- The area has been deformed by one major phase of compression probably associated with the Grenville orogeny. This produced northward facing, major folds and thrust faults which trend east - west. The stratigraphy within the Arkose Lake area is significantly affected by these structures and suggests that the northern limb of the Seal Lake Basin is more complex than previous studies suggested. As a result, the stratigraphy of the Seal Lake Basin may be significantly different from that set up by Brummer and Mann (1961) and the thickness of the Seal Lake Group may be markedly less than the 42,000' suggested by the above authors.


identifier: DeGrace, John R. <https://research.library.mun.ca/view/creator_az/DeGrace=3AJohn_R=2E=3A=3A.html>   (1971) Structural and stratigraphic setting of sulphide deposits in Ordovician volcanics south of King's Point, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The study area, located north of Springdale, Newfoundland, is underlain by basic volcanic rocks of the Ordovician Little Bay Head section of the Lush's Bight Group. From the base of the section to the top a general lithologic gradation (with considerable interdigitation of units) is present as follows: close-packed pillowed lavas, isolated pillow breccia, broken pillow breccia, coarse aquagene tuff, fine aquagene tuff. -- The section comprises the south limb of an anticline whose axial plane dips steeply northward and whose horizontal axis strikes east-northeast. Within the section discontinuous schist zones are approximately parallel to the volcanic layering. These are the result of inhomogeneous strain and are characterized by the presence of a strain-slip fabric, so that there are two fabrics in the zones and only one, an S or LS tectonite fabric outside. The schist zones are apparently pretectonic to the major anticline. Subsequent to the development of these structures, the rocks were disturbed by block-faulting and thrust-faulting from the north, and were finally folded again into an open flexure whose axial plane strikes north-south and whose axis plunges steeply northward. -- Sulphide mineralization is economically significant only in the schist zones, and chalcopyrite seems to be enriched in the hinges of the latest folds. It is postulated that the suplhides are stratabound by the volcanics, are pretectonic to the development of the schist zones, and were later remobilized in the schist zones during the folding episode(s).


identifier: Dal Bello, Anthony Eugene <https://research.library.mun.ca/view/creator_az/Dal_Bello=3AAnthony_Eugene=3A=3A.html>   (1977) Stratigraphic position and petrochemistry of the Love Cove Group, Glovertown-Traytown map area, Bonavista Bay, Newfoundland, Canada.  Masters thesis, Memorial University of Newfoundland.

abstract: The geology of the Glovertown-Traytown area, Bonavista Bay, Newfoundland, is dominated by the late Precambrian rocks of the Love Cove, the Musgravetown and the Connecting Point Groups. The Love Cove Group, in the map area, is made up of tuffs of acidic, intermediate and basic composition. These rocks are fault bounded and are considered to be the oldest rock in the Bonavista Bay region. Chemically, the Love Cove volcanics display a continental calc-alkaline affinity, similar to that of the Cascades and the Andes. -- The Connecting Point Group consists of shales and greywackes with bands of interbedded basic volcanics. No contact relationships are visible between the Connecting Point and either the Musgravetown or the Love Cove Groups. However, at localities outside the map area, it is seen to lie with angular unconformity beneath the Musgravetown Group. -- The Musgravetown Group is composed predominatly of clastic sediments with a major unit of extrusive volcanic rocks occurring at or near the base. These volcanics, the Bull Arm Formation, are mainly flow-banded rhyolites. Unlike the Love Cove rocks, they display a more alkaline trend in their chemistry. The sediments are mainly terrestrial, formed in fluvial, lacustrine and aeolian environments. Fluvial deposition is responsible for the Cannings Cove and Crown Hill Formations while aeolian and lacustrine deposits form the major portion of the Rocky Harbour Formation. -- The entire map area shows mineral assemblages characteristic of the greenschist facies, mainly transitional between the chlorite and the biotite zones. Structurally, the area is dominated by the Love Cove horst which brings steeply dipping, isoclinally folded, volcanics into contact with more gently dipping sediments of the Musgravetown and Connecting Point Groups.


identifier: Boyd, Cynthia <https://research.library.mun.ca/view/creator_az/Boyd=3ACynthia=3A=3A.html>   (1992) An occupational-biographical study of William Winter (1863-1936): an analysis of a furniture maker and furniture making process in Clarke's Beach, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis illustrates the versatility and creativity of a rural craftsman in the nineteenth and twentieth centuries in the small community of Clarke's Beach, Newfoundland. By analyzing this furniture maker from an occupational-biographical approach, his life and work are presented in order to understand not only the furniture made but the craftsman who made the furniture. -- William Winter's furniture making enterprise is examined from an occupational folklife perspective with particular reference to this craftsman's canon of work technique. Winter's furnishings exemplify, in form and decoration, the desires and aesthetics of both consumer and producer, as well as the influences of factory-produced furniture and local furniture models. Of particular importance, Winter's furniture was solidly built for the homes and residences of a diverse clientele from merchants, fishermen, to priests. His furniture was similar to other examples of Newfoundland outport furniture in its use of numerous styles, designs, and decorative embellishments. Yet Winter's decorative details, in the form of applied, carved, and handpainted motifs, have been borrowed by other contemporary craftsmen as represented on pieces collected by artifact researchers and antique dealers. -- William Winter's lasting contribution to the culture and heritage of Newfoundland is not only in surviving examples of his own manufacture but in examples of other furniture models that his work no doubt inspired. His furniture has adorned the living rooms and graced the bedrooms of homes throughout Newfoundland since the early 1900s. This craftsman will be remembered for his ingenuity in creating and constructing furnishings that not only fulfilled the needs of men and women in the 1900s, but of people of the present day.


identifier: Knight, I. (Ian) <https://research.library.mun.ca/view/creator_az/Knight=3AI=2E_=28Ian=29=3A=3A.html>   (1983) Stratigraphy, sedimentology and paleogeography of Mississippian Strata of the Bay St. George Subbasin, western Newfoundland.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: The Bay St. George subbasin is one of two major depressions filled by Carboniferous sediments in insular Newfoundland. It is the northeast extension of the larger Maritimes Basin. It contains approximately 10 km of sediments ranging in age from Late Devonian to Late Carboniferous of which strata of the Anguille Group (Famennian - Tournaisian age) and the Codroy Group (Visean age) are described here. Both groups contain mostly nonmarine terrigenous clastic sediments with marine strata only within the Codroy Group. -- The subbasin is believed to have formed as a pull-apart trough, rather than as a simple rift, adjacent to, and west of, the northeasterly trending Long Range fault, a major strike-slip structure that is part of the Hercynian Cabot Fault system in western Newfoundland. Dextral, strike-slip movements began in Middle or Late Devonian time and ended in Early Carboniferous (middle Visean) time. Three basin-fills, each approximately 3000 m thick, filled the pull-apart sequentially so that the oldest fill now occurs in the southwest and the youngest fill in the northeast. The first two basin-fills of Famennian and Tournasian age (Anguille Group), were deposited within an elongate, 30 km wide trough which initially formed between divergent faults near the southern margin of the Precambrian Steel Mountain anorthosite and which with time enlarged southwestward. The third basin-fill is made up of middle Visean strata (basal part of the Codroy Group). By this time, the subbasin had broadened to 60 km, and was irregular in shape, consisting of several subsiding depressions separated by fault-bounded archs. Wrench movements ceased in middle Visean time and the subbasin was subsequently influenced by block faulting when sediments of the upper part of the Codroy Group were deposited. -- The Anguille Group comprises Famennian redbeds (Kennels Brook Formation), and Tournaisian deepwater lacustrine black shales and mudstones, and turbidite and deltaic sandstones (Snakes Bight Formation), gray, fluvial-deltaic sandstones and shales (Friars Cove Formation), and red braided stream sediments (Spout Falls Formation). Gray conglomerates of the Fischells conglomerate member of the Spout Falls Formation formed a local alluvial fan on the northwestern margin of the subbasin. -- The Codroy Group of middle to late Visean age consists of marine and nonmarine rocks that appear to overlie conformably the Anguille Group. The basal Ship Cove Formation is a thin, subtidal to intertidal, laminated limestone (Windsor subzone A). Subsequent marine sedimentation includes sulphate and chloride evaporites that accumulated in sabkhas and shallow salinas (Codroy Road Formation and lower Jeffrey's Village Member of the Robinsons River Formation - Windsor subzones A and lower B). Associated carbonates and fine grained, gray to red siliciclastic rocks of the Codroy Road Formation and Jeffrey's Village Member formed in shallow seas, in lagoons, on shorelines and rarely as bioherms. Some nonmarine redbeds are intercalated with the basal marine deposits, and increasingly dominate the upper part of the Jeffrey's Village Member and the overlying Highlands Member of the Robinsons River Formation (Windsor subzones B and C). These redbeds were laid down on playa flats, on coastal and alluvial plains and on alluvial fans. Younger strata of the Codroy Group are confined to the southwest of the subbasin. Flood plain and alluvial fan were deposited there together with minor lacustrine and shallow marine rocks of the Mollichignick and Overfall Brook Members of the Robinsons River Formation and deltaic rocks of the Woody Cape Formation (Windsor subzones D and E). -- Detritus for the groups was principally derived from uplifted Lower Paleozoic crystalline and volcanic terranes southeast and northeast of the subbasin. Lower Paleozoic platformal carbonates and quartzites and Taconic allochthonous ophiolite and flysch sequences were an important local source area for the Anguille Group northwest of the subbasin. -- Evaporites and calcretes suggest that the Carboniferous climate was dominantly semiarid. Aridity was most intense during the middle Visean but humidity increased during the late Visean.


identifier: Guzzwell, Gladstone Keith <https://research.library.mun.ca/view/creator_az/Guzzwell=3AGladstone_Keith=3A=3A.html>   (1996) A hydrogeological and geophysical assessment of a contaminant plume emanating from the Terra Nova Regional Waste Disposal Site.  Masters thesis, Memorial University of Newfoundland.

abstract: A 16 year study, started in 1977, was undertaken to assess a subsurface contaminant plume emanating from the Terra Nova Regional Waste Disposal Site in Newfoundland. Eleven (11) monitoring wells, installed at the waste site shortly after the first cell was dug, were sampled regularly to detect changes in background groundwater concentrations of selected chemical parameters. Four (4) surface water locations were also monitored to detect changes in surface water chemistry. A geophysical study was undertaken to provide data on the location of the contaminant plume and to derive useful information on sub surface conditions. A geotechnical soil description including the hydraulic properties of the overburden soils was obtained using several in situ and laboratory techniques. Chemical analysis of the leachate plume was obtained via monitoring well water sampling. -- Groundwater sampling and the geophysical survey show that a leachate plume exists down stream of the waste site, but remains within the confines of the site boundaries. Electromagnetic (EM) surveys provide evidence that the leachate has preferentially flowed along bedrock channels. The geochemical sampling results exhibit variability with time suggesting preferential flow paths rather than a continuous uniform plume. Ion concentrations of surface water sites showed that water quality concentrations were below the Canadian Water Quality Guidelines for drinking water.


identifier: Dearin, Angela <https://research.library.mun.ca/view/creator_az/Dearin=3AAngela=3A=3A.html>   (2007) Provenance of the Ben Nevis Formation sandstones, White Rose Field, Jeanne d' Arc Basin, Newfoundland, Canada.  Masters thesis, Memorial University of Newfoundland.

abstract: This study focuses on the changes of sediment provenance with time, within and adjacent to selected reservoir intervals of the Aptian Ben Nevis Formation in the White Rose Field, Jeanne d'Arc basin. The field contains both oil and gas, and the reservoir rock is a very-fine- to fine-grained, generally well-sorted sandstone with variable thicknesses of up to 300 m. Average QFL ratios for Ben Nevis sandstones are Q₈₉F₃L₈, with the major lithic components being detrital carbonate grains and chert. Based on subcrop patterns and relative grain sizes, the Tithonian-Berriasian Hibernia Formation sandstones and the Barremian-Aptian Avalon Formation sandstones are thought to be possible sediment sources. -- Tectonic discriminative diagrams as well as petrographic descriptions give evidence of a very small amount of feldspar and indicate that the Ben Nevis Formation is not a first cycle sediment; rather, abraded quartz overgrowths indicate that Ben Nevis Formation sandstones are polycyclic and were sourced from recycled sediments. In addition, the Chemical Index of alteration (CIA) diagram can be used to show that the original basement of igneous and/or metamorphic rocks that acted as sediment source for the Ben Nevis Formation must have been of granodiorite composition. -- The Avalon Formation is petrographically and geochemically similar to the Ben Nevis Formation. Cuttings samples show a similar grain size and chemical composition to the Ben Nevis Formation, indicating that the Avalon Formation is a plausible source for the Ben Nevis Formation without requiring significant reworking or alteration. -- Possible sources with a higher lithic component, such as the Hibernia Formation, imply geochemical alteration with only limited physical reworking of the rock, which removed a large portion of unstable lithic grains and increased the quartz content relative to feldspars and lithic grains, leading to the quartz-rich composition of the Ben Nevis Formation. This process is supported by trace element data and plots of SiO₂ against immobile elements, together with common exposures of Hibernia Formation below the Aptian unconformity. Together with erosion of the Upper Hibernia Formation, detrital carbonate grains may have been added from underlying A-marker and/or B-marker units. Based on weathering relationships inferred from CIA diagrams, the remaining (presently preserved) sections of Lower Hibernia Formation were ultimately sourced from a more mafic basement, which is not reflected in the composition of upper Hibernia, Avalon, and Ben Nevis Formation sandstones. -- The Ben Nevis Formation is a relatively homogeneous sandstone with very subtle changes both petrographically and geochemically. Grouping of similar Zr concentrations within the Ben Nevis Formation has shown three correlatable units throughout the White Rose Field. Trends on CIA diagrams indicate an increasing amount of weathering moving from the south to north, perhaps due to lower topographic gradients in the north, causing longer residence times and hence increases in chemical weathering. P/K ratios are also lower in the north area, indicating a mature sediment source during early transgression in the north which became progressively less mature as transgression moved southward.


identifier: Jamieson, Rebecca Anne <https://research.library.mun.ca/view/creator_az/Jamieson=3ARebecca_Anne=3A=3A.html>   (1979) The St. Anthony complex, northwestern Newfoundland : a petrological study of the relationship between a peridotite sheet and its dynamothermal aureole.  Doctoral (PhD) thesis, Memorial University of Newfoundland.

abstract: The St. Anthony Complex consists of a suite of alkaline basaltic rocks (the Ireland Point Volcanics), greenschist and epidote amphibolite facies metasedimentary and metabasic rocks (the Goose Cove Schist), amphibolite to transitional granulite facies metabasites (the Green Ridge Amphibolite), an assemblage of dunite, troctolite, gabbro, and anorthosite (the Long Ridge Metagabbro), and a lherzolite-harzburgite massif (the White Hills Peridotite). These rocks are interpreted as a partial ophiolite and an underlying dynamothermal aureole formed during its tectonic emplacement. -- The overall metamorphic grade increases from the base of the St. Anthony Complex to the peridotite contact. Lithological and structural discontinuities occur within the aureole, with the epidote amphibolite to amphibolite facies transition marked by a metasomatic mylonite zone. Temperatures of 850ﾟC to 950ﾟC have been calculated for the amphibolites and peridotites in the contact zone, while the transition from greenschists to undeformed volcanics corresponds to temperatures of 300ﾟC to 350ﾟC. This indicates an overall thermal gradient of 750ﾟ to 800ﾟC/km. Pressure estimates range from 7 to 10 kb near the peridotite contact to 2 kb or less at the greenschist-volcanic transition. -- The lithological evidence and the pressure and temperature estimates suggest that the aureole is composite, formed by the juxtaposition of progressively shallower units during the dynamothermal metamorphism which accompanied the tectonic emplacement of the peridotite. Thermal models indicate that heating by conduction and friction contributed to the high contact temperatures. The evidence is consistent with a model involving westward transportation of oceanic lithosphere over tholeiitic gabbros, alkaline basalts, and turbidites to form the St. Anthony Complex, before final emplacement along late thrust faults as part of the Hare Bay Allochthon. -- Comparison of the St. Anthony Complex with other peridotite-aureole complexes shows general similarities in geological setting, lithology, and metamorphic grade. It is concluded that the formation of dynamothermal aureoles beneath transported peridotite is a normal process accompanying the early stages of tectonic peridotite emplacement.


identifier: Dickson, W. L. (William Lawson) <https://research.library.mun.ca/view/creator_az/Dickson=3AW=2E_L=2E_=28William_Lawson=29=3A=3A.html>   (1974) The general geology and geochemistry of the granitoid rocks of the northern Gander Lake Belt, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The granitoid rocks of the northern Gander Lake Belt form three distinct groups, viz. quartz diorites, leucocratic granodiorites, and megacrystic biotite granites roughly in the areal proportions of 3:22:75. The study area is divisible into four distinct N-S trending units which are from west to east, 1. The Davidsville Group, 2. the metasedimentary terrain, 3. the gneissic terrain, and 4. the western Avalon Platform. -- The Davidsville Group is composed of essentially non-metamorphosed Middle Ordovician shales, greywackes, and mafic volcanic rocks, which have been intruded by hornblende-biotite quartz diorites. The plutons show a zonation from hornblende quartz diorite at the margins to biotite quartz diorite in the core. The quartz diorite plutons are mineralogically similar which, along with their extensive and similar contact metamorphic aureoles, suggest that they may be connected at a shallow depth. -- The metasedimentary terrain unconformably underlies the Davidsville Group, and is composed of a monotonous sequence of low greenschist facies metasediments. The metasediments have been syntectonically intruded by muscovite-biotite-garnetiferous leucocratic granodiorites which contain an abundance of pegmatites. To the southeast of Gander, the terrain has been post-tectonically intruded by the Gander Lake pluton which is similar in composition to the megacrystic biotite granites of the gneissic terrain. -- The gneissic terrain is underlain by high grade gneisses, migmatites, and schists, which have been intruded by large plutons of megacrystic biotite granite, and locally by small bodies of leucocratic granodiorite. The megacrystic biotite granite is characterised by its very coarse grain size, and large microcline megacrysts. Locally the megacrystic granites have been intensely mylonitised. The leucogranites are similar to those of the metasedimentary terrain. -- The Precambrian Avalon Platform sediments and low grade schists of the study area have been intruded by megacrystic biotite granite similar to that of the gneissic terrain. -- The mineralogy of the various groups of granitoid rocks is generally reflected in their chemistry. The quartz diorites are the most mafic in composition with a low content of K and Rb, a high content of Ca, Fe, and Sr, and a high K/Rb ratio. The leucocratic granodiorites are the most salic in composition with a mean silica content of almost 72%, a high content of K and Rb, and a low content of Ca, Sr, Mg, and Fe, and a low K/Rb ratio. The megacrystic biotite granites are generally intermediate in composition between the quartz diorites and the leucocratic granodiorites but have the highest content of K and F. The Deadman's Bay pluton has an initial Sr⁸⁷/⁸⁶ ratio of 0.704. K shows a general increase from northwest to southeast across the study area. -- The quartz diorites are similar in geological setting, petrography, and chemistry to the granitoids of island arcs and are interpreted as having a similar origin. The enrichment of the leucocratic granodiorites in lithophile elements, their syntectonic origin, lack of associated basic igneous rocks, and approximately eutectic composition suggests that they were formed by anatexis of continental crust. The origin of the megacrystic biotite granites is especially problematical in that they have a very high K content and a very low initial Sr⁸⁷/⁸⁶ ratio. Neither anatexis of continental crust nor partial melting of oceanic crust can account for these two features; some combination of both processes is possible but present evidence does not allow selection of a particular mode of origin for these rocks. -- The abundance of pegmatites in the Middle Ridge pluton and the known occurrence of beryl associated with these pegmatites may justify exploration for economic concentrations of Be and associated elements. The occurrence of fluorite and locally high fluorine concentrations in stream water of the North Pond area could be re-examined to ascertain the fluorite potential. With the known correlation between tin and fluorine of other mineralized areas the megacrystic biotite granites may also have potential as sources of tin.


identifier: O'Neill, Patrick P. <https://research.library.mun.ca/view/creator_az/O=27Neill=3APatrick_P=2E=3A=3A.html>   (1985) An economic, metamorphic, structural and geochemical study of the Isle aux Morts prospect, southwest Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: A polymetallic sulphide occurrence, the Isle aux Morts Prospect, is located within the Port aux Basques Gneiss Complex of southwest Newfoundland. This is the first such mineralization to be found in the Complex and is the basis of the present study. -- Three main lithologic units dominate the geology of the area and these comprise quartzofeldspathic, pelitic and amphibole-bearing rocks. The quartzofeldspathic units are leucocratic, quartz-feldspar-biotite-garnet-bearing rocks which are interpreted to be felsic meta-tuffs and or felsic meta-volcanoclastic greywackes. Pelites vary from leucocratic, quartz-muscovite ± kyanite to melanocratic, biotite-garnet-kyanite rocks which are thought to be felsic tuffs and shales respectively. Amphibolites which contain amphibole ± garnet ± biotite, are ubiquitously intercalated with pelites and quartzofeldspathic rocks throughout the area. The proposed protoliths of the amphibolites are mafic sills/dikes and/or mafic tuffs. The amphibolites are tholeiitic and have a chemical affinity with ocean floor basalts. The geochemistry of all the rocks defines an essentially bimodal sequence of rhyolites/dacites and tholeiites. -- Structures recognized in the study area are interpreted to be the results of four episodes of deformation. The earliest, D1, is represented by isoclinal, recumbent folds affecting what is considered to be a primary layering. D2 is defined by a phase of tight, upright to inclined (towards the NE) folds associated with the formation of the regional S2 foliation. D3 is a minor phase manifested by a faint crenulation cleavage, axial planar to asymetric folds. D4 is defined by kinks, chevron folds and faults. -- The Isle aux Morts Prospect area lies within a medium-pressure, Barrovian-type, metamorphic facies series terrane. The amphibolite facies paragenesis garnet-kyanite-biotite ± staurolite is commonly observed in pelites and hornblende ± garnet ± biotite ± epidote in amphibolites. A staurolite-muscovite-quartz zone and staurolite-quartz zone are recognized. The area lies within bathozone 5. Estimated pressures and temperatures from the garnet-plagioclase geobarometer and garnet-biotite geothermometer average 6.7 kb and 650ﾟC. U-Pb dates from zircon rims and sphenes from an amphibolite, give a metamorphic age of 410 ± 5 Ma. -- Three textural types of mineralization are identified viz., a massive type comprising greater than 50% sulphides; a disseminated type in semipelitic, quartz-muscovite ± kyanite rocks and a banded type occurring in quartzitic rocks. The mineralization occurs at the contact between supposed felsic meta-tuffs to the north and felsic meta-volcanoclastic rocks with intercalated mafic meta-tuffs and pelites to the south. The felsic meta-tuffs contain ubiquitous disseminated pyrite and locally disseminated and banded chalcopyrite, sphalerite and galena. The pelites contain ubiquitous coticules thought to represent Mn-rich chemical sediments. Average &³⁴S values are 10 permil, typical of many volcanic-associated massive sulphide bodies. -- The sulphides record the same deformational effects as the enclosing rocks and are pre-deformational. The massive type of mineralization exhibits a deformational fabric of rounded silicate fragments in a sulphide matrix characteristic of deformed/metamorphosed massive sulphide bodies. Mineralized semipelites display a K20 enrichment and Na20 depletion characteristic of alteration associated with massive sulphide deposits in volcanic/sedimentary lithologies. The observations above are best interpreted by a model in which the mineralization is of the volcanogenic type.


identifier: Gardiner, Scott <https://research.library.mun.ca/view/creator_az/Gardiner=3AScott=3A=3A.html>   (1984) Sedimentology and local basin analysis of the Lower Conception Group (Hadrynian), Avalon Zone, Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: Argillites and medium to very fine grained sandstones in the Mall Bay (approx. 800 m thick) and Drook (approx. 1500 m thick) Formations of the lower Conception Group (Hadrynian) are well exposed along the coast on the east side of St. Mary's Bay, Avalon Peninsula, Newfoundland. These volcaniclastic sediments contain graded beds, convolute and parallel laminae, ripples, and rare floating shale clasts. A few sedimentary slide deposits are also present. Inferred sediment transport mechanisms are turbidity currents, low-density, low velocity lutite flows, cohesive gravity flows, and modified grain flows. Superimposed depositional processes include grain interaction and fluid escape. -- Seven facies are recognized based on lithology, grain size, bed thickness, and sedimentary structures. Six of these have been grouped into facies associations I, II, and III, which are interpreted to represent sedimentation on basin plain/fan fringe, lower basin-slope, and lower mid-fan environments respectively, within a turbidite fan depositional system. The intensely faulted, chaotic nature of the seventh facies precluded interpretation. -- Field measurements of solemarks (grooves and prodmarks), linguoid and straight-crested ripples, and laboratory measurements of sandstone fabric indicate a complex paleoflow pattern dominated by a southwest-northeast trend. Paleocurrent directions obtained from sandstone fabric agree with those obtained from solemarks and ripples. Stratigraphic variation of paleoflow directions does occur. During deposition of the Mall Bay Formation, turbidity currents flowed toward the northwest and southwest, while marine currents flowing to the east reworked muds and silts on the adjacent lower basin-slope. During Drook deposition, turbidity current flow was initially toward the southwest, but later switched to the northeast from a new southerly source. -- The average sandstone composition of the lower Conception Group is 39.6% plagioclase (albite), 36.6% volcanic rock fragments, 14.2% matrix, 8.2% quartz, 1.4% carbonate, and trace amounts of epidote and accessory heavy minerals (e.g., zircon). Based on electron microprobe data, albitization of feldspar is pervasive. -- The dominant source terrane consisted of rhyolitic and basic volcanic rocks. There was also an older sedimentary source. A tectonic setting for these sandstones could not be determined using the QFL and QmFLt diagrams of Dickinson (1983) and coworkers. The sandstone composition is similar to that around island arcs beside both modern and ancient subduction zones, but the paucity of other features indicative of subduction, such as andesitic volcanism, melange, and ophiolites, precludes an unequivocal subduction-zone interpretation.


identifier: Ivany, Peter Andrew <https://research.library.mun.ca/view/creator_az/Ivany=3APeter_Andrew=3A=3A.html>   (1993) Site characterization, design, construction, and management of a field experiment to assess groundwater contamination by agricultural waste management practices.  Masters thesis, Memorial University of Newfoundland.

abstract: A research study was undertaken to establish a long term groundwater monitoring program to examine the spatial and temporal effects of agricultural waste disposal on cultivated fields and the effectiveness of several containment barriers. The research project attempts to address the effect of agricultural waste storage facilities and common manure fertilization practices on groundwater quality. -- The monitoring program included twenty-five sampling wells of which sixteen wells were dedicated to the spreading experiment with the remaining nine for the storage experiment. Initial background site characteristics, namely; instrumentation, determination of soil index properties, and chemical analyses before and after the first manure spreading were determined. The physical and hydrogeological properties of the site were defined using various in situ and laboratory techniques resulting in a geotechnical soil description and hydraulic characterization. The chemical properties of the groundwater were analyzed using samples obtained from the monitoring well network. -- Groundwater quality analysis for the period of May 1992 to December 1992 showed no statistical variation in chemical concentrations for the spreading zone experiment. The chemical concentrations, determined thus far, can be considered as background readings for the site. The statistical analysis of the groundwater chemistry has not shown any statistically significant chemical change in the groundwater signatures after the first manure application on the spreading or background zone. The water quality changes can not be attributed to the experiment. However, it is likely that the local anomalies are caused by extraneous sources. -- Continued site surveillance is necessary to estimate long-term trends, be able to define seasonal or other cycles, and forecast chemical concentrations. A detailed study of the storage experiment is necessary to determine its effects on water quality and overall site properties. The sampling scheme should be modified to statistically determine these effects in future.


identifier: Nautiyal, Avinash Chandra <https://research.library.mun.ca/view/creator_az/Nautiyal=3AAvinash_Chandra=3A=3A.html>   (1966) The Cambro-Ordovician sequence in the southeastern part of the Conception Bay area, eastern Newfoundland.  Masters thesis, Memorial University of Newfoundland.

abstract: The Cambrian - Lower Ordovician rocks studied in this research program occur on Bell Island, Kellys Island, Little Bell Island and in the lower Manuels River valley in the southeastern part of the Conception Bay area, Eastern Newfoundland. They include the Wabana hematitic oolite deposits. The Cambro-Ordovician sequence of the abovementioned areas is composed of relatively unmetamorphosed fossiliferous shale and sandstone, with intercalated and interbedded beds of hematitic oolite. The ore and its host rocks are considered to be primary, shallow-water, marine sediments; with the ore owing its existence to both physical and chemical processes. -- Microfossils discovered in this research program have affinities with previously described European forms and are the first finds made in Newfoundland. Professor Van Ingen in 1914 suggested in an abstract entitled ‘Cambrian and Ordovician faunas of southeastern Newfoundland’ that all the Cambrian and Ordovician faunas which occur in the Avalon Peninsula are related to the Welsh - French facies rather than to the interior North American - Northern Scottish facies, and the present study provides additional evidence in favour of his proposal. -- In the stratigraphic division of the Lower Ordovician rocks of Bell Island, the writer has found it necessary to lower the status of the Wabana Group to formational level. In addition, three new formational names are proposed: Polls Head Formation, Townsquare Formation, and Airfield Formation, for stratal units of Bell Island Group. Finally, it is proposed that the Wabana Formation is conveniently divisible into Lower, Middle and Upper (Grebes Nest) Members. -- Structurally, the mapped areas are uncomplex. Tilting, accompanied by minor faulting and local slumping, has effected the Cambro-Ordovician rocks. Broad folding of the strata in post-Ordovician time resulted in the development of a regional synclinal structure in southern Conception Bay.


identifier: Liang, Feng <https://research.library.mun.ca/view/creator_az/Liang=3AFeng=3A=3A.html>   (2003) Performance enhancement of digital relays for transmission line distance protection.  Masters thesis, Memorial University of Newfoundland.

abstract: This thesis investigates the performance enhancement of digital relays for transmission line distance protection from filtering (extracting the fundamental frequency components) point of view and relaying algorithm point of view. -- Several Fourier based filtering algorithms are investigated, simulated, and compared in this thesis. Furthermore, a new wavelet transform based real-time filtering algorithm is proposed. The studies suggest that this method converges faster than Fourier based algorithms. -- Two types of relaying algorithms are also examined in this thesis. One algorithm, which compensates the fault resistance, only needs to monitor the voltage and current signal at the relay end. The other algorithm makes use of the information from both ends of the transmission line and adaptively adjusts the relay operating characteristics. Both theoretical analysis and simulation results show that these algorithms can significantly enhance the performance of digital relays for transmission line distance protection.


identifier: Prativadi Bayankara, Srinivas <https://research.library.mun.ca/view/creator_az/Prativadi_Bayankara=3ASrinivas=3A=3A.html>   (2003) Sorption of cadmium and nickel from solution by peat and modified peat.  Masters thesis, Memorial University of Newfoundland.

abstract: The performance of peat and modified peat in the remediation of wastewater containing cadmium (Cd) and nickel (Ni) was investigated in both batch and continuous process. Peat is an attractive natural sorbent because it is widespread and inexpensive. The sorption capacity can be determined using Langmuir and Freundlich isotherms. The batch sorption results showed that sulfuric acid treatment (STP) enhances the sorption capacity of the peat. Temperature, concentration of metals and time influences the sorption process. Breakthrough curves for cadmium and nickel were evaluated for several column characteristics: the height of the exchange zone, time taken by the exchange zone to travel its own height and rate of movement of the exchange zone. The column showed a better performance at lower concentration when compared to higher concentrations of cadmium and nickel. From the infrared (IR) measurements the difference in the antisymmetrical and symmetrical stretching of carboxylic group of peat confirms an unidentate complex with Ni and Cd.


identifier: Huang, Fang <https://research.library.mun.ca/view/creator_az/Huang=3AFang=3A=3A.html>   (2003) Synthesis of conducting polymers.  Masters thesis, Memorial University of Newfoundland.

title: Synthesis of conducting polymers

abstract: A series of novel electronic conducting polymers has been prepared as potential low band gap materials. Stille coupling reactions were employed for the polymerization of 2,7-dibromospiro[4'.4'-dioctyl-2',6'-dioxocyclohexane]-r,9- fluorene (2-9) with l,4-bis(trimethylstannyl)benzene (2-20), 2,5-bis(trimethylstannyl)- furan (2-28) and 2,5-bis(trimethylstannyl)thiophene (2-5) to yield precursor polymers poly(2,7-spiro[4',4'-dioctyl-2',6'-dioxocyclohexane]-r,9-fIuorene-co-l,4-benzene) (PFKB), poly(2,7-spiro[4',4'- dioctyl-2',6'-dioxocyclohexane]-1 ',9-fluorene-co-2,5- furan) (PFKF) and poly(2,7-spiro[4'.4'-dioctyl-2',6'-dioxocyclohexane]-r,9- nuorene-co-2,5-thiophene) (PFKT). The precursor polymers have been converted to target fluorenone-based polymers by deacetylisation of the acetal substituents to the ketones. Model compounds have been synthesized as compounds 2-15 and 2-16. Compound 2-15 was converted to 2-16 to explore the method for conversion of the precursor polymers. The fluorenone-thiophene copolymer, PFT, gave the lowest band gap as ca. 1.6 eV. The known ionic conducting polymers poly[2,2'-(4,4'-oxydiphenylene)-5,5'- bibenzimidazole] (PBI-1), poly[2,2'-(4.4'-sulfonyldiphenylene)-5,5'-bibenzimidazole] (PBI-2), poly[2,2'-(4.4'-oxydiphenylene)sulfonyl-5,5'-bibenzimidazole] (PBI-3) have been synthesized. PBI-1 was cast as a thin film and doped with phosphoric acid. The ionic conductivity was 2.06 x 10⁻² s cm⁻¹ at 80°C.


identifier: Taylor, Heather <https://research.library.mun.ca/view/creator_az/Taylor=3AHeather=3A=3A.html>   (2003) Taking care of yourself: a grounded theory study about how young women make a decision about having a Papanicolau test.  Masters thesis, Memorial University of Newfoundland.

abstract: Newfoundland has one of the highest rates of cervical cancer in Canada and the western region of Newfoundland has the lowest cervical cancer screening rates. Young women, in particular, have a potential risk for cervical cancer. They initiate sexual intercourse at an early age, have an increased risk for sexually transmitted diseases and may not have the knowledge to access cervical cancer screening tests. The effectiveness of the Papanicolau test in reducing morbidity and mortality from cervical cancer is well accepted. The purpose of this study was to use a grounded theory approach to identify and describe the social processes that influence young women in western Newfoundland to make a decision about having a Papanicolau test. Interviews were conducted with 14 women, ages 19-29. Three main categories emerged from the data to show how these young women made decisions about having a Papanicolau test. Acquiring significant information was the first category. Using the information characterized the second category and the third category of 'changing perceptions' showed how young women's decision to incorporate having a Pap test into their regular health routine was reached. The central category that explained the relationship among all the categories was 'taking care of yourself'. -- The implications for nursing practice, nursing education and nursing research are included in the study findings.


identifier: Veit, Allison C. <https://research.library.mun.ca/view/creator_az/Veit=3AAllison_C=2E=3A=3A.html>   (2003) Tail streamer function and sexual selection in the red-tailed tropicbird.  Masters thesis, Memorial University of Newfoundland.

abstract: The function of the elongated tail streamers of male and female Red-tailed Tropicbirds (Phaethon rubricauda) was studied on Tern Island (23°45' N, 166°15' W), French Frigate Shoals, Northwestern Hawaiian Islands from April to August 2000, February to May 2001, and January and February 2002. Adults were marked with a numbered steel leg band and sexed genetically or by cloacal morphology. Streamers are the two filamentous central rectrices, each with a black rachis and narrow red vane and averaging 399 mm in length when fully grown. The streamers molt alternately, with adults displaying one fully grown and one growing streamer throughout most of the year. The use of streamers in aerial courtship displays, together with the brief period when fully grown streamers coincide with the pre-laying period, strongly suggest a sexually-selected function for this spectacular tail ornament. My data are consistent with functions of tail streamers to attract mates, but suggest that variability in expression is arbitrary and hence streamers cannot signal an individual’s "quality" in choice of mate.


identifier: Butt, Casey Benjamin <https://research.library.mun.ca/view/creator_az/Butt=3ACasey_Benjamin=3A=3A.html>   (2003) Simplified fuzzy logic controller based vector control of an interior permanent magnet motor.  Masters thesis, Memorial University of Newfoundland.

abstract: In recent years, the interior permanent magnet synchronous motor (IPMSM) has become increasingly popular for use in high performance drive (HPD) applications due to desirable features such as high torque to current ratio, high power to weight ratio, high efficiency, low noise and robust operation. As a consequence, the control of the IPMSM for use in high precision industrial drives has received heightened attention. This proposed research is directed to develop and implement a complete and practical vector control scheme for the IPMSM to be used in such applications. -- This thesis presents the control of the IPMSM at rated speed and below, in the constant torque mode, by use of the maximum torque per ampere (MTPA) mode of operation utilizing an innovative Taylor series approximated approach. Coupled with this method is the development of a simplified fuzzy logic controller (FLC) based speed controller that maintains high performance standards while reducing complexity and computational burden. The performance of this proposed technique is evaluated by simulation as well as by experimental results. A comparison is made, in simulation, between a more conventional FLC based control technique with id=0 and the proposed simplified FLC with MTPA approach. -- The complete vector control scheme is implemented in real-time using a digital signal processor (DSP) controller board in a laboratory 1 hp interior permanent magnet synchronous motor.


identifier: Green, Adam Geoffrey <https://research.library.mun.ca/view/creator_az/Green=3AAdam_Geoffrey=3A=3A.html>   (2003) Regulation of TGF-β signaling by Xrel3, a member of the Rel/NF-κB family in human cervical cancer cells.  Masters thesis, Memorial University of Newfoundland.

abstract: The Rel/NF-κB and TGF-βSMAD signal transduction pathways are essential for maintaining homeostasis, controlling cell proliferation and survival in every species studied and in many different cell and tissue types. Both pathways are implicated in numerous cancers resulting from their abnormal regulation. For instance, constitutive Rel/NF-κB activity leads to continous pro-survival stimulation allowing cancer cells the opportunity to continue growing in otherwise detrimental conditions. Also, due to its role in growth suppression, TGF-β-insensitivity has been reported in a majority of tumor types. Until recently, however, very few studies have attempted to determine whether there are interactions between the signaling members of each of these pathways. Therefore, this study was designed for this purpose. -- The tetracycline-inducible system (Tet-On) was chosen to control the expression of a constitutively active Rel/NF-κB member, Xrel3, in CaSki human cervical carcinoma cell lines. The responses to TGF-β stimulation were measured in Xrel3-expressing and non- expressing CaSki cells to investigate whether the presence of Xrel3 affects TGF-β signaling. This thesis provides evidence that Xrel3 is able to block the TGF-β-induced growth inhibition, and PAI-1 and p21 induction, but not SMAD2 phosphorylation or p15 induction in CaSki cervical cancer cells. A mutated form of Xrel3, mutNLS, was not able to affect TGF-β responses of growth inhibition or marker induction. These results suggest that constitutive Rel/NF-κB activity may be responsible for the loss of sensitivity to TGF-β and may provide insight for therapeutic strategies for treating tumors which display this activity.


identifier: Harvey, Rosemarie Gail <https://research.library.mun.ca/view/creator_az/Harvey=3ARosemarie_Gail=3A=3A.html>   (2003) Synthesis and solubility of nickel and iron hideout reaction products with aqueous sodium and ammonium phosphate under steam generator conditions.  Masters thesis, Memorial University of Newfoundland.

abstract: Low concentrations of sodium phosphate are added to the boiler water of electric power stations as a means of controlling pH. Hideout is the phenomenon by which sodium phosphate is observed to be retained in the boiler during conditions of high temperature and pressure, only to be released back into the water upon cooling. All-volatile amine treatment is an alternative boiler water pH control method, without the same adverse effects, but it is not known if problems will arise from a changeover from congruent phosphate control to all-volatile treatment. The objective of this research was (i) to develop improved synthetic methods for the known hideout reaction products, maricite, NaFeᴵᴵPO₄, and sodium iron hydroxyl phosphate (SIHP), Na₃Feᴵᴵᴵ (PO₄)₂•(Na₄/₃H₂/₃O), (ii) identify any ammonium-iron-phosphate reaction products that may form during the changeover, and (iii) measure the solubility of the hideout reaction product sodium-nickel-hydroxyl-phosphate (SNHP), Na₂Ni(OH)PO₄, so that a thermodynamic database can be derived. -- The syntheses of the solid reaction products were carried out in 45 mL Parr 4744 Teflon-lined stainless steel reaction vessels which allowed in situ filtration of the products fi-om solution by inversion of the vessel, allowing the remaining solution to drain through a stainless steel mesh. Maricite was synthesized using previous established methods, whereas new methods for synthesizing SIHP from thermal decomposition of iron(III) nitrilotriacetic acid, and chelates, iron oxalate and iron tartrate, have been developed. A new hydrothermal synthesis for (NH₄)FeᴵᴵFeᴵᴵᴵ (PO₄)₂ has been developed by thermally decomposing the chelate, iron tartrate. An additional ammonium reaction product, (NH₄)Feᴵᴵ(PO₄)•H₂O, was synthesized from the iron nitrilotriacetic acid complex. This provided a new synthetic route for this compound and proved that it formed under boiler conditions. The crystal structure of (NH₄)FeᴵᴵPO₄)•H₂O was also confirmed. The major sodium-nickel-phosphate reaction product Na₂Ni(OH)PO₄, was synthesized by two separate methods, fi-om nickel oxide and from the thermal decomposition of the nickel nitrilotriacetic acid complex. -- Solubility studies of Na₂Ni(OH)PO₄, SNHP, were carried out in a modified 450 mL Parr 4562 stirred zirconium reaction vessel, according to the following reaction: -- NiO(s) + 2 Na⁺(aq) + HPO₄²⁻ (aq) ⇋ Na₂Ni(OH)PO₄(s) -- Kinetic experiments were conducted at 250°C to ensure equilibrium had been reached and solubility data were collected over the temperature range 235-280°C at a sodium/phosphate mole ratio of 2.5 that had an initial phosphate concentration of 1.5 mol•kg⁻¹. The MULTEQ chemical equilibrium program was used to calculate the composition concentrations of relevant species at each temperature studied, and experimental equilibrium constants were calculated from the activity coefficient model used in MULTEQ. The results were used to create a thermodynamic model for SNHP, consistent with the Helgeson-Kirkham-Flowers model for the standard partial molar properties of aqueous phosphate species. -- In conclusion, the maricite synthesis reported by Quinlan (1996) was reproducible and SIHP was synthesized from similar conditions as the maricite synthesis and using the analogous chelate decomposition reaction. Ammonium-iron-phosphate reaction products can form under boiler conditions; those identified in this study were (NH₄)FeᴵᴵFeᴵᴵᴵ (PO₄)₂ and (NH₄)Feᴵᴵ(PO₄)•H₂O. The major sodium-nickel-phosphate reaction product synthesized was Na₂Ni(OH)PO₄ and the data from this study and that previously reported for this reaction product, were used to create a thermodynamic model for this system, consistent with the database for sodium-iron hideout reactions.


identifier: Barrett, Kerry <https://research.library.mun.ca/view/creator_az/Barrett=3AKerry=3A=3A.html>   (2003) Studies on the development of a mouse model of Graves' disease.  Masters thesis, Memorial University of Newfoundland.

abstract: Thyroid diseases are commonly caused by an autoimmune response to thyroid antigens. Hashimoto's thyroiditis (HT) is a T-cell mediated disease that ensues when the thyroid gland is destroyed by infiltrating lymphocytes specific antigens such as thyroglobulin (Tg) or thyroid peroxidase (TPO), leading to hypothyroidism. In Graves' disease (GD), autoantibodies against the thyroid-stimulating hormone receptor (TSHR) mimic the action of thyroid-stimulating hormone (TSH) and stimulate thyrocytes to overproduce thyroid hormones resulting in hyperthyroidism. Both spontaneous and experimentally induced animal models of HT exist and have contributed considerably to our understanding of the disease process. In contrast, difficulties in inducing TSHR- specific, stimulating antibodies have delayed the establishment of an animal model for GD. Recently, new strategies including immunization with TSHR-transfected fibroblasts and genetic immunization with eukaryotic expression vectors containing TSHR cDNA have provided promising results in mice, but further studies are required to optimize disease induction. The research described herein focuses on establishing a mouse model of GD through intradermal DNA immunization of BALB/cJ and AKR/J mice with varying doses of plasmid vectors carrying the homologous (murine) or heterologous (human) TSHR cDNA (Chapter 3). By using an algorithm-based approach, we have also identified human TSHR peptides with Aᴷ-binding potential and tested their immunogenicity and pathogenicity in AKR/J mice (Chapter 4). Finally, an alternative method for identifying pathogenic Tg epitopes using DNA immunization was introduced and preliminary data are being presented (Chapter 5).


identifier: Hamam, Fayez <https://research.library.mun.ca/view/creator_az/Hamam=3AFayez=3A=3A.html>   (2003) Lipase-catalyzed acidolysis of algal oils with a medium-chain fatty acid, capric acid.  Masters thesis, Memorial University of Newfoundland.

abstract: Lipase-assisted acidolysis of algal oils with a medium-chain fatty acid (capric acid) was studied. Five commercially available lipase preparations from Candida antarctica, Mucor miehei, Pseudomonas sp., Aspergillus niger and Candida rugosa were initially used as biocatalysts for the incorporation of capric acid (CA) into selected algal oils. The algal oils of interest were arachidoinc acid single cell oil (ARASCO), docosahexaenoic acid single cell oil (DHASCO) and single cell oil rich in docosahexaenoic acid (DHA) and docosapentaenoic acid (DP A) (OMEGA-GOLD). Among the lipases examined, Pseudomonas sp. was the most efficient. -- Effects of various reaction variables, namely the mole ratio of substrates, enzyme amount, time course, temperature and the amount of added water were examined for Pseudomonas sp. Response surface methodology was used to obtain a maximum incorporation of CA into algal oils. The process variables studied were the amount of enzyme (2-12 %), reaction temperature (25-55°C) and incubation time (12-48h). All experiments were conducted according to a face-centred cube design. Under optimum conditions (12.3 % of enzyme; 45°C; 29.4 h), the incorporation of CA was 20.0 % into ARASCO. Optimization of acidolysis of DHASCO with CA gave rise to a maximum of 22.6 % at 4.2 % enzyme amount, and a reaction temperature of 43.3°C and reaction time of 27.1 h. Similarly, the maximum incorporation of CA into the OMEGA-GOLD oil was obtained when enzyme amounts, reaction temperature and time were 2.5 %, 46.6°C and 25.2 h, respectively. -- Stereospecific analysis was performed to establish positional distribution of fatty acids on the glycerol backbone of modified ARASCO, DHASCO and the OMEGA-GOLD oil. In all oils examined CA was mainly located at the sn-1 and sn-3 positions of the triacylglycerol (TAG) molecules. In ARASCO-based SL, arachidonic acid (ARA) was mostly esterified at the sn-2 position of the glycerol backbone. In DHASCO-based SL, DHA was concentrated in the sn-2 position, but also present in the sn-1,3 positions. DHA or DP A were preferentially esterified at the sn-2 position of the modified OMEGA-GOLD oil. -- The oxidative stabilities of enzymatically modified oils as well as their unmodified counterparts were assessed under Schaal oven conditions at 60°C over a 72 h storage period. Conjugated dienes (CD), and 2-thiobarbituric acid reactive substances (TBARS) were used to follow the primary and secondary products of oxidation, respectively. Among the oils tested, the structured lipids (SL) of ARASCO, DHASCO, and the OMEGA-GOLD oil had higher conjugated dienes than those of their unmodified counterparts. TBARS values of modified DHASCO were significantly higher than their origin oil at all times. TBARS values of both modified and unmodified ARASCO increased gradually over the entire storage period. TBARS values of the OMEGA-GOLD-based SL increased steadily with increasing storage time. The results presented in this study suggest that enzymatically modified oils are more susceptible to oxidation than their unmodified counterparts. However, when the three oils (ARASCO, DHASCO and the OMEGA-GOLD) were subjected to the same procedure steps, the stabilities of the oils were adversely affected to a large extent. This observation might possibly be due to the loss of natural antioxidants during the reaction work up.


identifier: Kitchen, Brenda Lee <https://research.library.mun.ca/view/creator_az/Kitchen=3ABrenda_Lee=3A=3A.html>   (2003) "Ma'am, yes Ma'am": gender relations and institutional change in the Royal Newfoundland Regiment.  Masters thesis, Memorial University of Newfoundland.

abstract: In 1989, Canadian Forces leadership granted authorization for women to enter all trades of the military. This study examines gender integration and the consequences and experiences of women who choose to enter one particular reserve unit: The Royal Newfoundland Regiment (RNR). This is a qualitative analysis of the experiences of nine men and nine women, who are former or current members of this unit. The research takes a grounded theory approach to sociological investigation. This generates concepts and categories that help explain the particular social actions of members of The RNR during the research itself that will be elaborated on later in the thesis. First, I provide a background on the military, specifically the reserve unit, The RNR. A personal experience with the Canadian Forces as a reserve officer in the Cadet Instructors Cadre and my academic curiosity forged the current research and helped develop the research question. This leads to an examination of current literature. Afterwards, the data are introduced. Several themes become prominent and evoke discussion, such as: the terminology of the institution, the military entrance requirements, how menstruation has become a territory of confusion, and the attitudes of the 'old boys' network that continue to linger. Another theme is the manifestation of a distinct type of masculinity, the use of put-downs and the threat of sexual and physical harassment. The discussion then turns to the tools in place for women in the military to deal with this environment. Several recommendations are made to improve training for the reserve unit and for further research.


identifier: Squires, Susan E. G. <https://research.library.mun.ca/view/creator_az/Squires=3ASusan_E=2E_G=2E=3A=3A.html>   (2003) Age and individual differences in infant visual attention and oral exploration during an object examination task.  Masters thesis, Memorial University of Newfoundland.

abstract: The primary purpose of the present study was to investigate age and individual differences in visual attention and oral exploration in 6- and 11-month old infants. An infant-controlled habituation procedure with an object examination task was used to assess visual attention and oral exploration. This task yields the visual components of casual looking (a passive form of attention) and examining (an active form of visual information processing), and a measure of oral exploration, active mouthing. In addition, use of the object examination task allowed infants to be categorized as long or short lookers based on a median split of their peak examining times on the habituation trials. Performance on the object examination task was then compared to performance on the Fagan Test of Recognition Memory. Results revealed that long lookers scored lower than short lookers on the Fagan test, indicating that the individual differences in examining may influence performance on other visual attention tasks. In addition: (1) long lookers took longer to habituate than short lookers, (2) 6-month-olds engaged in more casual looking but less examining than 11-month-olds during habituation, (3) long lookers spent more time in casual looking and examining than did short lookers during habituation, (4) 6-month-olds engaged in significantly more active mouthing followed by examining than 11-month-olds. Therefore, younger infants do not appear to engage in as much active visual processing as older infants, but may use oral behaviour as a means of exploration. Furthermore, short lookers did not engage in as much examining as long lookers, which may be a reflection of their more efficient visual processing ability. These findings are important as they indicate that measures of active information processing such as examining and active mouthing should be considered when assessing the developing cognitive capabilities of young infants.


identifier: White, Noel Peter <https://research.library.mun.ca/view/creator_az/White=3ANoel_Peter=3A=3A.html>   (1975) A study of the physically abnormal characters in the novels of Charles Dickens.  Masters thesis, Memorial University of Newfoundland.

abstract: The majority of Charles Dickens's physically abnormal characters are neither grotesque nor frightening. After Bleak House their numbers swiftly decline as Dickens concentrates upon the social problems of his time. -- In the novels of Dickens's early literary period there is the repeated occurrence of deformities of the lower limbs. Male characters, and infrequently female characters, with such debilities are often unsuccessful in love affairs. When describing the sexual misadventures of these characters Dickens makes frequent use of a particular sexual symbol. This symbol of the lock and the key, representing the male and female sexual organs, has its roots in traditional literature. -- Added to the list of physically abnormal characters who are afflicted with deformities of the lower limbs are those who have wooden legs. It appears that for Dickens the wooden leg symbolizes castration. -- The final chapter of this thesis is devoted to explaining and examining the associations between physically abnormal servants and their masters. The degree of debility in the servant will be shown to mirror the moral decrepitude of the respective master. A short discussion of the German 'doppel-ganger' and its possible influence upon Dickens's descriptions of servants and masters will also be given in this chapter. -- In the Conclusion a brief examination is devoted to Dickens's illustrations of legal blindness. In Bleak House the blindness is metaphorical rather than actual.  Chancery is constantly covered with fog. Nothing can penetrate it. Krook, who is linked to Chancery, cannot read; Chancery cannot 'see' the truth.


identifier: Harris, Tara Gwen <https://research.library.mun.ca/view/creator_az/Harris=3ATara_Gwen=3A=3A.html>   (1995) A study of voice in the writings of Dora Russell.  Masters thesis, Memorial University of Newfoundland.

abstract: In 1945 Dora (Oake) Russell became the first Woman's Editor of the Evening Telegram. This thesis focuses on four of the columns she wrote during her four years with the Telegram: a daily Editorial, "The Woman's Angle"; a daily fictional diary column, "Day By Day"; a profile column, "Woman of the Week"; and a fictional column called "Spectatler." Russell's writing voice is examined within the framework of "feminist poststructuralist theory." Such an examination includes discussion of the social and cultural forces which shaped Russell's voice. -- An analysis of Russell's writing voice reveals the duality inherent in the voice of a woman writing within patriarchal society and language. An examination of Russell's use of language and rhetorical techniques reveals the "double-voiced discourse" of the woman writer. The impact of genre and audience on Russell's writing voice is also a focus of this thesis. Because Russell wrote in a wide spectrum of genres including editorial, profile, fictional diary, short fiction, drama, and straight political reporting, her work provides great opportunity to explore not only what each genre offers the woman writer, but how the writer uses each genre. Audience, of course, is an important factor as well. There is much evidence to suggest that Russell's voice changes according to both genre and audience.