title: CLINICAL BIOMARKERS FOR THE NONINVASIVE DIAGNOSIS OF ENDOMETRIOSIS

contributor: Medical Sciences (Division of Physiology/Pharmacology)

abstract: Endometriosis is a chronic estrogen-dependent gynecological disease where endometrial cells implant at inappropriate sites causing significant pelvic pain, decreased quality of life, and often infertility. It affects 10% of women of reproductive age, and there is no minimally invasive diagnostic test. Consequently the time to diagnosis, which occurs during laparoscopic surgery followed by pathological confirmation of disease, is prolonged and exceeds 11 years. During this time, the disease often worsens and women thus experience avoidable morbidity. Additionally, endometriosis is a financial burden on the healthcare system, with annual costs of $69.4 billion (U.S.) and $1.8 billion (Canada) in 2009. For these reasons, identifying a clinical marker remains a top priority. Although over 100 putative markers have been identified and reviewed, none have proven sufficiently accurate or reliable for disease diagnosis. For endometriosis to develop endometrial tissue must evade the immune system and adhere, implant, create new vasculature, and grow at ectopic locations. As such it is likely that abnormalities in many or all of these pathways are requisite for disease formation and progression. With this in mind, serum concentrations of eight putative biomarkers believed to be involved in varying pathogenic processes were compared between patients with both surgically and histologically confirmed presence (n=96) and absence (n=25) of endometriosis. Results showed there to be a significant elevation in two of these markers (glycodelin p<0.001, and zinc alpha 2-glycoprotein (ZAG) p=0.009 when hormonally untreated cases (n=57) were compared to controls. ROC analysis revealed glycodelin to have a sensitivity of 81.6% and specificity of 69.6% for disease diagnosis, while ZAG had a sensitivity of 46% and a specificity of 100%. Subsequent analysis revealed that if combined in panel, using both glycodelin and ZAG could result in a test with a sensitivity of 90%, and a specificity of 65%, giving greater accuracy for disease detection than either independently.

abstract: Thesis

abstract: Master of Science (MSc)


title: Digital Data Transmission Using Single-Sideband Modulation

subject: digital, data, transmission, single-sideband, modulation, synchronization

abstract:
 The feasibility of using a partial response-encoded single-sideband (SSB) modulated signal for transmission of digital data in a radio system is considered. The principal methods of SSB signal generation and demodulation are examined, and the effects of carrier synchronization are determined. The effect of steady-state carrier phase errors on the error rate of an SSB partial response receiver is analyzed theoretically and by means of computer simulation. The analysis of a decision-directed SSB carrier phase tracking loop is presented and its performance is evaluated using computer simulation. The performance of the SSB
partial response system after amplification by means of travelling-wave-tube (TWT) amplifiers is analyzed by using computer simulation. Finally, a comparison of an SSB partial response system and a quadrature partial response system (QPRS) is made.

abstract: Thesis

abstract: Master of Engineering (MEngr)


title: Thermodynamic and Kinetic Study of the Iron-Manganese-Sulfur System at 1300°C

contributor:
Kirkaldy, J.S.
Metallurgy

abstract: Title: Thermodynamics and Kinetic study of the Iron-Manganese-Sulfur System at 1300°C, Author: Hitoji Nakao, Location: Thode

abstract:
In this thesis, a thermodynamic and kinetic study of the ironmanganese-
sulfur system is described which is relevant to sulfide transformations
in commercial steel at soaking temperatures (~1300°C).
Equilibrium and diffusion couple experiments have been carried out to
explain the characteristics of formation of sulfides at 1300°C using
electron probe microanalysis and metallographic techniques. Apparent
semi-conductive behaviour of MnS, which cannot be understood on the
basis of simple diffusion kinetics, was observed in the diffusion
experiments. The concept of the "virtual" diffusion path adequately
rationalized the reaction between Fe-Mn alloys and FeS. Information
about the constitution of the 1300°C ternary isotherm was obtained.

abstract: Thesis

abstract: Master of Engineering (ME)


contributor:
Hoffman, T.W.
Chemical Engineering

abstract: Title: The Diffusion of Solid Particles in a Turbulent Gas Stream, Author: Le D. Nam, Location: Thode

abstract:
An experimental study was performed to measure the diffusion of
solid particles in a gas stream flowing turbulently in a 5.5 in. diameter
pipe at a Reynolds number of 52800.

Glass beads (density 2.55 g/cm 3 ) with a size range 0-60 microns
and average particle size of 35 microns were injected into the gas
stream. The particle motion was observed by measuring the particle concentrations
at various radial and axial positions downstream. A solids feeder
and a sampling system were designed for this purpose.

A method of analysing the experimental data based on a constant
eddy diffusivity of the particles was developed. This analysis indicates
that under the conditions studied, the eddy diffusivity of the particles
is approximately 60% of that of the gas. The experimental results
demonstrate that this model provides a reasonably good approximation to
the turbulent diffusion in circular conduits. The results also provide a
fairly good picture of the interaction between the fluid and solid particles
in turbulent flow.

 Some future directions for research in this area are also indicated.

abstract: Thesis

abstract: Master of Engineering (ME)


contributor:
Siddall, J.N.
Mechanical Engineering

abstract: Title: Pseudo-Boolean Programming for Bivalent Optimization, Author: M. Natesan, Location: Thode

abstract:
This thesis introduces an effective computational algorithm making
use of Boolean algebra for solving bivalent optimization problems with
linear and nonlinear constraints. This method is a combination of the
algorithm suggested by Hammer and the branch and bound method. The whole
system of constraints is replaced by a single Boolean resolvent function
and the solutions of this resolvent are found by branch and bound method
which are found to be the feasible solutions of the system of constraints.
Some practical applications are also discussed.

abstract: Thesis

abstract: Master of Engineering (ME)


contributor:
Risk, Michael J.
Geology

abstract: Title: Cyclic Sedimentation in the Middle Devonian of Southern Ontario, Author: Edmund A. Navickas, Location: Thode

abstract:
The Edgecliff member of the Onondaga Formation is
exposed in an abandoned quarry 1.2 km west of Port Colbourne,
Ontario on the north shore of Lake Erie. An investigation
of the Port Colbourne Quarry has resulted in the definition
of four major and three minor carbonate Facies:
(1) Facies A: Biocalcarenite
( 2) Facies A-1: Biocalcarenite with in situ
stromatoporoids
( 3) Facies B: Fissile biomicrite
( 4) Facies C: Cystiphyllum-rich fissile biomicrite
(5) Facies B-1: Bioturbated biomicrite
( 6) Facies C-1: Packed biomicrite
( 7) Facies D: Synaptophyllum-rich sparse biomicrite.

The facies are cyclicly arranged, and are restricted
to one of three major units within the stratigraphic column.

Typical cycles begin with the rapid deposition
of a coarse grained, lensoidal biocalcarenite bed exhibiting
(1) Sharp scoured bases and vertical (fining upward)
size grading;
(2) The abundance of abraded grains, shelter void
cements and escape burrows; (3) The presence of in situ Favosites heads overlying
the biocalcarenite indicating minor hiati
between sporadic and violent deposition.
In addition, these deposits exhibit:
(1) Abundant transport and abrasion of Cystiphyllum
and Favosites;
(2) A general lack of in situ fauna;
(3) The presence of resuspended and redeposited
debris between Cystiphyllum.

The depositional environment is deep to shallow
subtidal, and a minor regression is evident towards the top
of the stratigraphic column. Deposition is interpreted as
being the result of sporadic, cyclic, and violent depositional
events, probably storm induced.

abstract: Thesis

abstract: Bachelor of Science (BSc)


contributor:
Kershaw, K.A.
Biology

abstract: Title: The Association Analysis of a Lichen Dominated Raised Beach System in Subarctic Ontario, Author: Michael W. Neal, Location: Thode

abstract:
A modified version of the Braun-Blanquet technique
for the analysis of plant associations was applied to an
area of lichen dominated raised beach system at Cape
Henrietta Maria in subarctic Ontario. Eleven such associations
were extracted on this basis. Subsequently the
data was subjected to principal components ordination
methods from which it was concluded that the number of
associations be reduced to nine. With the aid of
multiple regression trend surface analysis a number of
hypotheses concerning the ecological factors underlying
the distribution of vegetation in the area were suggested,
namely, that the associations are controlled by gradients
of pH, the thickness of the underlying peaty substratum,
and the distribution of late snow lie zones.

abstract: Thesis

abstract: Master of Science (MS)


title: Non-Symmetric Edge Spread Function in Neutron Radiography

contributor:
Harms, A.A.
Engineering Physics

abstract: Title: Non-Symmetric Edge Spread Function in Ne utron Radiography, Author: J.C. Osuwa, Location: Thode

abstract:
A combined experimental and theoretical investigation was carried
out with neutron scattering samples to study the effect of scattering on
the edge spread function.

A physically based mathematical formulation of the neutron processes in radiographic specimen in which scattering is dominant was
found to be in good agreement with experimental results. In addition to
full integral description for the edge-spread function, a generalized
Lorentzian function has been proposed as an alternative method of
analysis.

abstract: Thesis

abstract: Master of Engineering (ME)


contributor:
McCann, S.B.
Geography

abstract: Title: The Arctic Beach Environment, South-West Devon Island, N.W.T., Author: Edward H. Owens, Location: Thode

abstract:
Investigations have been carried out in the southern
Queen Elizabeth Islands, N.W.T., to determine some of the
features and characteristics of the beach environment in that
area of the Canadian Arctic Archipelago. Analysis of beach
material from three locations, mapping, profiling, measurement
of tidal cycles, and a study of ice conditions have provided
some insight into the processes acting upon these beaches.
The period when those wave processes which operate freely at
lower latitudes are active in the study area is less than two
months in the year. The role of ice in preventing wave
generation and restricting wave action in the littoral zone
greatly reduces the level of marine processes in this sheltered
environment. Numerous ice-push ridges were recorded and mapped,
but the characteristics of the beach result primarily from the
action of infrequent storms. Comparisons with other arctic
areas, Cape Thompson and Point Barrow, Alaska, and the Sverdrup
Islands, indicate the variety of conditions which exist within
the arctic region. These may be related to exposure, or fetch,
and the distribution and movement of sea ice which determines
the length of time for which waves processes can operate in
the littoral zone.

abstract: Thesis

abstract: Master of Science (MS)


contributor:
Wilson, Nyal E.
Civil Engineering

abstract: Title: An Investigation on the Shear Strength Characteristics of Peat, Author: Zuhtu S. Ozden, Location: Thode

abstract:
Shear strength characteristics of peat were
investigated by a series of consolidated undrained tests with
pore pressure measurements. Cubes from the peat samples used
for triaxial testing were infiltrated by paraffin and thin
sections obtained; these were examined microscopically. A
correlation of mac roscopic and microscopic investigations was
attempted.

abstract: Thesis

abstract: Master of Engineering (ME)


title: Toward a Pastoral Theology of Trauma

contributor:
Zylla, Phil
Christian Studies

subject: pastoral theology, trauma, God, Christian, trust

abstract:
 Trauma is a devastating consequence that affects the human identity resulting in the shattering of basic trust in oneself, others, and God. Often people suffering the effects
of trauma turn to the Christian community for answers and assistance. Through
understanding how trauma affects a person the Christian community is better equipped to
walk along side those who are in the recovery process. Compassion creates a safe place for an individual to reveal the depths of emotional pain. The attribute of resilience enables the traumatized individual to continue moving through the recovery process. Six narratives were examined using constructive narrative theology as the methodology. From weaving these narratives together it became apparent that the Christian community can best aid a traumatized person by listening to their story, entering into their lament, drawing out their metaphorical and symbolic language, lifting them up in prayer, and leaving them in God's hands.

abstract: Thesis

abstract: Master of Arts (MA)


title: Decomposition of n- and sec-Butyl Acetate on Synthetic Zeolites and Silica-Alumina

contributor:
Anderson, R. B.
Chemical Engineering

subject: decomposition, Butyl, acetate, synthetic, zeolites, silica-alumina, reactions, organic, deposit, isomerization, temperature

abstract:
 A kinetic and mechanistic study on catalytic decomposition of n- and sec-butyl acetate was carried out. The catalysts were silica-alumina and synthetic zeolites including type A, X, Y and mordenite. The reactions were performed in the temperature region of 140° to 290°C at
atmospheric pressure using a fixed-bed flow reactor.

 The esters decomposed to acetic acid and n-butenes. The isomerization of butenes occurred consecutively. The mechanism of ester decomposition was different from that of pyrolysis. The catalytic activity was effected by acidity, cations and pore size. The Langmuir-Hinshelwood rate equation corresponding to the surface reaction on dual-sites correlated data satisfactorily. Strong adsorption of acetic acid, crystal collapse and the blocking of pores with organic deposit caused aging of catalysts.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


title: Residential Differentiation in the City of Hamilton from 1961 to 1981

contributor:
Taylor, S. Martin
Geography

subject: residential, differentiation, Hamilton, gentrification, socio-economic

abstract:
 This research identifies the socio-economic, demographic and ethnic composition changes that have occurred within the City of Hamilton from 1961 to 1981. Within this twenty-year time period, Hamilton has undergone growth, downtown renewal and gentrification. A statistical analysis of census data shows the extent to which these changes are reflected in the recent evolution of the socio-demographic structure of Hamilton.

 A factor analysis was performed on the data for each of the census years: 1961, 1971 and 1981. The factor scores were mapped to show the spatial distribution of socio-economic status, family status
and ethnic composition. In general, the distributions conformed to the classical sectoral, zonal, and multiple nuclei models. The results revealed two areas where changes on these dimensions were most significant: the inner city and the Hamilton mountain.

 Statistical tests confirmed these changes. A significant increase in socio-economic status for the inner city area was observed in the period (1971-1981) following the renewal and gentrification. The mountain area retained its high family status throughout the twenty year time period, and ethnic composition became more dispersed throughout the city.

abstract: Thesis

abstract: Candidate in Philosophy


title: The Complementary Potential Energy Principle in Finite Elastic Deformations

subject: potential energy principle, finite, elastic, deformations, stress, density, LIBOVE theorem

abstract:
 This thesis establishes the general Principle of Complementary Potential Energy for the finite deformations of an elastic continuum, in which the Lagrange stress tensor is employed as the stress variable. It is demonstrated that constitutive relations, formulated in terms of
the Lagrange stress tensor and the deformation gradient, will admit inversion. Consequently, the present theorem and the theorem proposed by LEVINSON are established as valid principles. The complementary strain energy density of the present theorem, however, is shown to be Independent of rigid displacements, in contrast to that of the LEVINSON
formulation. The general Principle is reduced to the form appropriate to finite elastic systems, and it is established that the present theorem reduces to, and therefore contains as a special case, the LIBOVE Theorem.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


title: An Investigation of the McMaster Commuter Distribution

contributor:
Hall, F. L.
Geography

subject: investigation, McMaster, commuter, distribution, trip length, residential tenure, travel, cost

abstract:
 The purpose of this study is to investigate the McMaster commuter distribution. The total analysis is carried out in two subanalyses. The first analysis examines the effect that different
variables have on the mean trip length of various commuter groups. The variables examined in the first analysis are: residential tenure, occupation, duration of service or study, parking permit ownership and part-time versus full-time status of students. In general the first analysis is concerned with the mean trip length of on campus Faculty, Staff, and Students. The first analysis verified that residential tenure is an important variable in that students who commute from the homes of parents average a considerably greater mean trip length than
students who commute from rented accommodation.

 The second analysis employs a disaggregate singly-constrained spatial interaction model to distribute trips between McMaster and student residential locations. The second analysis shows that: (i) the production-constrained model fits considerably better with observed data when the sample is partitioned into student renter and stay at home groups than when the sample is not partitioned. The attractiveness factors were varied between the two groups. Renters were considered to be
attracted to renter occupied dwellings in a zone while students commuting from the homes of parents were considered to be attracted to the number of owner occupied dwellings in a zone. (ii) straight line distance as a surrogate for travel cost yields a better fit for the renter group while automobile travel-time facilitates a better fit for the stay at home group. Auto travel time yields a better fit for peripheral trips because of the tendency for these trips to be made by car. Given the understanding that student renters are predominantly bus users who have chosen to locate close to the campus, euclidean distance is apparently more reflective of the travel impedance experienced by this group. Future research should attempt to qualitatively link measures of travel cost with the client group they are attempting to model.

abstract: Thesis

abstract: Bachelor of Arts (BA)


title: Perturbed Angular Correlation Studies in the Ferromagnetic Rare Earths

contributor:
Cameron, J. A.
Physics

subject: perturbed, angular, correlation, ferromagnetic rare earths, temperature, vibrational, gamma

abstract: A low temperature apparatus has been constructed for the purpose of studying  perturbed angular correlations in the ferromagnetic rare earth elements. The rotation of the 966.4 keV gamma vibrational state in 160Dy was measured to be (1.61 ± 0.33) milliradians.

abstract: Thesis

abstract: Master of Science (MSc)


contributor:
Threlkeld, S.F.H.
Biology

abstract: Title: A Genetic Study of Female Sterility in Neurospora crassa, Author: Orest M. Mylyk, Location: Thode

abstract:
In a general way, this study was directed towards
the understanding of processes concerned with the sexual
reproduction of Neurospora crassa. It was prompted by an
observation of Threlkeld that crosses between Neurospora
strains derived from different genetic backgrounds
occasionally produce sterile progeny. This specific
project was concerned with finding naturally occurring
variants expressing some form of sterility, studying
their genetics and complementation, and characterizing the
mutants found for several properties.

A search for sterility uncovered patterns of
perithecial and ascospore production among strains being tested for their ability to participate in crosses and
also resulted in the finding of a female sterile variant.
Subsequently a rather complex pedigree of crosses
involving female sterile strains followed by conidial
analysis and genetic and complementation studies of
selected strains revealed a total of eight mutants causing
this phenotype, all appearing to have arisen spontaneously
among some of the strains used. Some linkage data were
obtained, and the mutants were characterized for growth
characteristics and crossing ability under different
cultural conditions. Possible interpretations of the
findings were considered.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


title: Group Action in Locational Conflict

contributor:
Dear, M. J.
Geography

subject: group, action, locational, conflict, psychological, social, political

abstract:
 Existing approaches to the analysis of participation in community groups have adopted either a social-psychological view or a structural-political view of the impetus for participation. This paper attempts to integrate these two approaches, through analysis of the nature of the
link between the impact of the issue, which serves as a source of conflict (a psychological view) and the organizational characteristics of the community group (a structural view). Using Dahrendorf's model of latent and manifest interests, research propositions are generated,
focusing on four sets of factors conditioning the selection of group participation as a response to conflict. These are: psychological factors, technical conditions of organization, social conditions of organization, and political conditions of organization.

 Results of an empirical application of these propositions, using a questionnaire, show that the impetus for participation in a community group is a two stage process, depending on the existence of two separate sets of conditions: the impact of the issues, which is dependent upon the individual's distance from the source of conflict; and the social organization of the group. Based on analysis and interpretation of these results, hypotheses are generated, and are used to modify and expand Dahrendorf's model, in order to make it more applicable to the analysis of community group participation in locational conflict.

abstract: Thesis

abstract: Bachelor of Arts (BA)


contributor:
Kelly, R.
Metallurgy and Materials Science

abstract: Title: Ion-Bombardment-Induced Structural Transformations in Oxides, Author: Hassein M. Naguib, Location: Thode

abstract:
In this dissertation, transmission electron microscopy, reflection
electron diffraction, gas-release,and electrical-conductivity measurements
have been used to study bombardment-induced structural transformations
in oxides, and their implications to other non-metallic substances.
Results are presented for bombardment-induced crystallization
of amorphous thin films of ZrO2; bombardment-induced amorphization of
crystalline pellets of TeO2, MoO3, V2O5 and Bi2O3; and high-dose formation
of lower oxides with MoO3 and V2O5. Using the results of this experimental
study along with information concerning 30 other solids, a thermal-spike
model and a bond-type criterion are shown to be successful in predicting
the behaviour of these materials under ion impact.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


contributor:
Duckworth, H.E.
Physics

abstract: Title: Stopping Cross-Sections in Carbon of Low-Energy Atoms With Z  ≤ 12, Author: John H. Ormrod, Location: Thode

abstract:
This thesis is concerned with the energy loss
of light atomic projectiles in thin carbon films.
Chapter I gives a brief theoretical description of the
processes involved and an outline of the experimental
procedure. Chapter II deals with the thin carbon films
used as targets in the experiments. Chapter III describes
the Monte Carlo calculation used to reduce our data to
information of a general form. Chapter IV contains the
experimental results and Chapter V compares the results
with existing data and theory.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


contributor:
Drake, John
Geography

abstract: Title: Dustfall Rates and Trace Metal Concentrations for the Hamilton, Ontario Region, Author: Scott D. Murray, Location: Thode

abstract:
The main objective of this research was to examine the effects
of dry deposition or dustfall. The dustfall was collected in buckets
lined with polyetholene and set out at four locations around the
Hamilton Ontario region. The total dustfall collected decreased
rapidly away from the industrial area. The dustfall was fractionated
up into three approximate particle sizes, sand, silt and clay. The
largest amount collected for each site was in the silt size, the sand
was the second largest amount collected the clay was the lowest.

Trace metal concentrations were then determined for the dust
using 12 metals, Al, Ba, Br, Ca, Cl, Co, Cu, I, Mn, Ha, Ti, and V.
Metal concentrations for Al, Ca and Mn where large and increased
towards the industrial area. Cu was another metal indicative of the
industrial area. Within the industrial area, it became the most
important of the small scale metals. As the distance away from the
industrial area increased, the concentration of Cu dropped below
detection.

Generally the greatest concentrations were found in the silt
size material and the lowest was the clay size.

abstract: Thesis

abstract: Bachelor of Arts (BA)


title: Slips, trips, falls, and brawls: Fractures of the working poor in London during the long eighteenth century

contributor:
Brickley, Megan
Anthropology

subject:
anthropology
medical history
London
long eighteenth century
trauma
fracture
hospital
working poor
lower class
archive
life course
perimortem

abstract: This thesis contributes insight into the lives and injury experiences of the working poor of London, UK during the “long” eighteenth century. The distribution of fracture types within individual bodies and the larger experiences of those living and dying during this period are explored. Skeletal evidence, drawn from five London cemeteries, and historical evidence, in the form of contemporary hospital admission records and surgeons’ and physicians’ notebooks, speak in concert to reveal evidence of sex-based differences in fracture patterning and evidence for interpersonal violence. Sex-based differences in fracture patterning reveal that males and females suffered differing constellations of fractures and that the risk of fracture for males and females differed throughout the life course. Patterning of fractures in the male skeletal sample suggests that males’ lives were punctuated with episodes of interpersonal violence, supporting the historical data found in contemporary court records. Significant differences observed in the fracture frequencies in the skeletal and archival datasets indicate that not all fractures were being treated in a hospital setting. These results allow for examination of the intangible notion of human choice regarding health care in the past. The mixture of healed, healing, and perimortem fractures found in the skeletal sample allows for a relative timeline of fracture events to be reconstructed, contributing to a more comprehensive life course understanding of fractures in this group. Ultimately, the combined skeletal and archival datasets contribute to anthropological and historical studies of fractures and health care by placing the working poor at the centre of their own narrative.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


contributor:
Lu, W.K.
Metallurgy

abstract: Title: Surface Tension Measurements on Iron and Iron-Oxygen Alloys by the Oscillating Drop Technique, Author: Ram N. Murarka, Location: Thode

abstract: The oscillating drop technique was used to measure the surface tension of pure liquid iron and its oxygen alloys in the range 0 to 600 ppm oxygen. An attempt has been made to investigate how these measurements can be used for future kinetics studies.

abstract: Thesis

abstract: Master of Engineering (ME)


contributor:
Middleton, G.V.
Geology

abstract: Title: Stratigraphy and Sedimentology of the Triassic at St. Martins and Lepreau, New Brunswick, Author: Gregory C. Nadon, Location: Thode

abstract:
Two small Triassic basins in southern New Brunswick were examined. The eastern basin, centered approximately 30 km east of Saint John, consists of three formations. The lower unit, renamed the Honeycomb Point Formation, resting unconformably on Carboniferous
sediments, consists of redbeds and sandstones and was deposited on a semi-arid alluvial fan with flow predominently eastward. Some of the sands were reworked into small dune fields migrating to the southwest.

The lower redbeds are unconformably overlain by the roundstone conglomerates and coarse-grained, gray-green, trough crossbedded
sandstones of the Quaco Formation. These sediments were deposited by a large braided river which initially flowed northward but which was later deflected toward the northeast by the growth of alluvial fans.

In the western end of the basin the Echo Cove Formation
overlies the Quaco conglomerate. It can be divided into four members, all of which represent alluvial fan deposition. The members are partially time transgressive but are characterized by different facies, paleocurrent directions and climates.

Pollen analysis of sandstones from the upper portion of the Fownes Head Member indicates a mid-Late Carnian age for the sediments.

The Lepreau Formation outcrops along the coast approximately 70 km west of Saint John. It was subdivided into three members. The lower member consists of breccias (predominantly granite) which laterally interfinger with fine to medium grained massive sandstones deposited on a semi-arid alluvial fan. These are unconformably overlain by a complex series of conglomerates, medium and coarse-grained sandstones and red shales. This unit is gradationally overlain by breccias forming a thickening and coarsening upward
sequence.

Regional plate tectonic studies of the initial rifting of the Atlantic show graben formation controlled by four major transform fault systems. The postulated presence of a mantle hot spot along the Kelvin Fracture Zone and the associated doming of the region may have been in part responsible for the northward dipping paleoslope indicated by the Quaco Formation. Palynological studies of the Triassic basins on the continental United States and Eastern Canada show that while the grabens formed along more or less the same zone of structural weakness, they did so as two separate systems. Those in the United States began
in South Carolina in the Mid to Late Carnian and gradually opened northwards. Those in Canada also began in the Mid to Late Carnian, however, because of structural weaknesses in the crust caused by the closing of the Proto-Atlantic, the basins opened toward the northeast.

abstract: Thesis

abstract: Master of Science (MS)


contributor:
Alden, R.T.H.
Electrical Engineering

abstract: Title: Current Distribution and Metal Flow in an Electric Arc Furnace, Author: Milton M. Munroe, Location: Thode

abstract: Current Distribution and Metal Flow in the crucible of an Electric Arc Furnace is investigated using a small-scale, three dimensional model. Results obtained indicate that current distribution for furnaces of different sizes and ratings may be predicted using one model. Naturally occurring metal flow is shown to be related to phase rotation of the supply voltage. A two-phase, four-elecrode design is proposed as an alternative to the present three-phase, three-electrode design.

abstract: Thesis

abstract: Master of Engineering (ME)


title: An Atomistic Simulation Study of Solid State Nucleation during the Austenite to Ferrite Transformation in Pure Fe

contributor:
Hoyt, Jeff. J
Materials Science and Engineering

subject:
Classical Nucleation theory
Molecular dynamic simulation
Winterbottom construction
faceted-spherical cap model
Grain boundary puckering
Barrier-free nucleation process

abstract: The knowledge of solid-state second phase heterogeneous nucleation process is limited due to the experimental difficulty, such as tiny length scale, short time period, and high temperature condition. In recent years, some significant breakthroughs in nucleation studies have been achieved by aid of computational techniques. In this study, we apply molecular dynamics (MD) simulations to perform with heterogeneous nucleation occurring at grain boundaries (GB) during the austenite (FCC) phase to ferrite (BCC) phase transformation in a pure Fe polycrystalline system. A neighbor vector analysis (NVA) method has been introduced and it is shown how the NVA can be used to determine the misorientation of grain or interphase boundaries, which allow a further investigation of the boundary structure correlated to interfacial energy and mobility during the nucleation and early grain growth stage. Meanwhile, benefited from the MD technique, the bulk energy, grain boundary energy, and interfacial energy can be individually captured during the simulations, which allow a detail analyze of the shape, critical size and nucleation energy of specific nuclei, through the classical nucleation theory (CNT) and according to a faceted-spherical cap geometric model (FSC). In addition, we also compared the results from the classical approach with a new algorithm that combination of the multi-phase field model (MPFM) and the nudged elastic band (NEB) method to demonstrate the CNT in the solid-state conduction. Finally, we extend our simulation method to a more complex triple GB junction nucleation event, and investigate the non-classical barrier-free nucleation behaviors. The results support the critical informations to clarify the initial state of austenite to ferrite transition, and improve our knowledge of the heterogeneous nucleation process, which help to bridge the gap between the experimental measurements and the theoretical calculations. The simulation method also provided a new approach for studying the complicate heterogeneous nucleation phenomenon in solid-state for a wide variety of polycrystalline material systems.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


title: Voice Frequency Manipulations Affect Women’s Perceptions of Trustworthiness and Cooperativeness

contributor:
Feinberg, David
Psychology

subject:
Pitch
Trust
Cooperation
Vocal Tract Length
Masculinity

abstract:
The focus of this thesis is to investigate the role of voice pitch (the perception of fundamental frequency and/or corresponding harmonics) and apparent vocal tract length (VTL-the perception of the vocal tract resonances i.e. formant frequencies) in perceptions of trustworthiness and other related social attributions. Past research has found that women trust men with relatively higher pitched voices as long-term romantic partners. People with relatively higher pitched voices are also judged as more cooperative than people with relatively lower pitched voices. However, women choose men with relatively lower pitched voices when asked to select which leaders are more trustworthy and make better economic decisions. In study 1, I used “The Trust Game” to determine whether women trust men with higher or lower pitched voices to evenly divide a sum of money. Women trusted men with relatively higher pitched voices more often. Thus, even though men with lower pitched voices are more often elected to office, and are CEOs of larger companies that make more money, women trust men with relatively low pitched voices less than men with relatively high pitched voices to equitably distribute money.
Surprisingly, no studies have examined the relationship between VTL and trust, but one recent study examined the relationship between VTL and perceptions of cooperation. In study 2, I was the first to test the role of voice pitch and VTL on perceptions of trust and cooperation. In general, people with higher frequency voices (high pitch and a shorter VTL) were relatively more cooperative and trustworthy than people with lower frequency voices (low pitch and a longer VTL). Despite correlations between the effects of voice frequency manipulations on ratings of trustworthiness and cooperativeness, the amount to which people thought pitch and VTL affected cooperativeness and trustworthiness was different enough to determine that these two constructs overlap, but are not synonymous.
Together, these studies show that despite the fact that masculine men tend to win political elections and run large and successful companies, they are viewed as uncooperative and untrustworthy. Future research should investigate if those who win political elections and run successful companies do so because they keep more than their fair share of money.

abstract: Thesis

abstract: Master of Science (MSc)


title: On the Direct Kinematic Theory of Thin Elastic Shells

subject: direct, kinematic, theory, thin, elastic, shells

abstract:
 This thesis consists of a rigorous development of the direct kinematic, small-displacement theory of thin elastic shells. The theory is developed, so as to facilitate a derivation of the equations of compatibility of middle-surface strains. These equations are developed by the kinematic approach and it is shown that this produces a more coherent
relation of such equations to the general theory of shells, as no special techniques are required. The equations of compatibility are developed again by the formal Saint-Venant method; this development serves to substantiate the validity of the kinematic approach. At the same time, it provides many useful identities which are then employed as transformation
relations, in order to compare the various forms of compatibility equations, as developed by other authors. A general comparison of kinematic shell theory with other nonkinematic methods is undertaken, and appended to the main discussion.

abstract: Thesis

abstract: Master of Engineering (MEngr)


title: Frequency Pulling of the van der Pol Oscillator

contributor:
Gladwin, A. S.
Electrical Engineering

subject: frequency, van der Pol, oscillator, synchronized, forcing signal, sinusoidal

abstract:
 The frequency pulling of the van dcr Pol nonlinear oscillator due to an external forcing signal is investigated. The nonlinearity is of the zero-memory symmetric-cut-off type following a cube law.

 An experimental oscillator was built, and curves of the frequency shift of the oscillator fundamental against the magnitude of the input forcing signal are shown, both for a sinusoidal input and for a narrow band noise input. An empirical result is derived.

 The case of the sinusoidal input is examined theoretically. The importance of harmonic and intermodulation frequencies in the oscillator output is shown, and relations giving the oscillator frequency shift are given for small forcing amplitudes and for large amplitudes when
the oscillator is nearly synchronized.

abstract: Thesis

abstract: Master of Engineering (MEngr)


title: The in vivo role of AMP-activated protein kinase in the metabolic function of brown and beige adipose tissue

contributor:
Steinberg, Gregory
Medicine

subject: AMPK, Brown Adipose Tissue, Mitochondria, Beta3-adrenergic receptor, Metabolism, Non-shivering thermogenesis, Autophagy

abstract: Brown (BAT) and white (WAT) adipose tissues are significant contributors to whole-body energy homeostasis. A disturbance in their metabolic function could result in the development of obesity and subsequent metabolic complications. The energy-sensing enzyme of the cell, AMP-activated protein kinase (AMPK), has been vastly studied in skeletal muscle and liver, but its role in BAT and WAT metabolism is elusive. We generated an inducible, adipocyte-specific knockout mouse model for the two AMPK β subunits (iβ1β2AKO) and found that iβ1β2AKO mice were intolerant to cold, and resistant to β3-adrenergic activation of BAT and browning of WAT. These defects in BAT activity were not due to the AMPK-ACC axis, but instead were due to compromised integrity of mitochondria. Mitochondrial morphology, function, and autophagy were all distorted in iβ1β2AKO mice, measured via transmission electron microscopy (TEM), respiration, and immunoblotting, respectively. These findings provide strong evidence that adipocyte AMPK regulates a fine-tuned program that responds to environmental and pharmacological inputs by maintaining mitochondrial integrity through autophagy and subsequent mitochondrial biogenesis in chronic settings.

abstract: Thesis

abstract: Master of Science (MSc)

abstract: Traditionally, there are two types of adipose tissue that appear and function differently. White adipose tissue (WAT) has evolved to store away energy in an efficient manner for later use. In contrast, brown adipose tissue (BAT) is a unique organ in mammals that has evolved over time to maintain body temperature. In essence, BAT has the ability to burn away calories as heat and is a promising therapeutic target to combat obesity and metabolic diseases such as type 2 diabetes. In our study, we have identified a potential factor that not only promotes BAT activity, but also promotes WAT to function more like BAT. By targeting this factor through drugs, there is potential to increase resting metabolic rate and fight the global epidemic of obesity.


title: A Finiteness Criterion for Partially Ordered Semigroups and its Applications to Universal Algebra

contributor:
Bruns, G.
Mathematics

subject: finiteness, criterion, partially ordered semigroups, applications, universal, algebra

abstract: A finiteness criterion is given for finitely generated positively ordered semigroups and this is used to show that various semigroups of operators in universal algebra are finite.

abstract: Thesis

abstract: Master of Science (MSc)


title: Quasianalytic Ilyashenko Algebras

contributor:
Speissegger, Patrick
Mathematics and Statistics

abstract: A recent result was the construction of a quasianalytic class containing all transition maps at hyperbolic singularities with logarithmic monomials in their series expansions. The end goal being obtaining o-minimality of this structure, we need an extension to several variables stable under certain operations (such as blow-up substitutions). As a first step towards the several variable extension, we construct a quasianalytic Hardy field extending the previous class where the monomials are now allowed to be any definable function in R_an,exp.

abstract: Thesis

abstract: Master of Science (MSc)


title: Study of the Timing Characteristics in Coaxial Ge(Li) Detectors

contributor:
Kennett, T. J.
Physics

subject: timing, characteristics, coaxial, detectors, semi-conductor, Ge(Li)

abstract: This thesis deals with the theory and application of semi-conductor detectors to timing measurements. The theory section discusses the charge collection times in the coaxial detector. The third chapter describes the experimental procedure for the γ-γ coincidence work, and the fourth part reports the results of studies of the timing characteristics of the coaxial detector.

abstract: Thesis

abstract: Master of Science (MSc)


title: Far Infrared Optical Absorption in Manganese Fluoride

contributor:
Timusk, T.
Physics

subject: far infrared, optical, absorption, Manganese Fluoride, phonon

abstract: The optical absorption in manganese fluoride has been studied in the range of 30 to 300 cm^-1 with emphasis placed on the possible multiple magnon absorptions (other than two-magnon) and an induced single magnon absorption. It is shown that theoretically one can expect four-magnon processes by expanding the Heisenberg spin hamiltonian to higher orders in the creation and annihilation operators introduced by the Holstein-Primakoff transformation. However, neither an induced one magnon nor four magnon process was observed. The absorptions which were seen in the spectra were attributed to phonon processes.

abstract: Thesis

abstract: Master of Science (MSc)


title: Perturbation Theory with Non-Local Potentials in Nuclear Matter

subject: perturbation theory, non-local, potentials, nuclear matter

abstract: In this thesis, the standard perturbation theory is applied to nuclear matter. The second order term is simplified by the introduction of the K(k,k',q) function which takes care of the Pauli Exclusion Principle. Various potentials are used in the calculation of the first and second order term of the perturbation expansion. The results are then discussed.

abstract: Thesis

abstract: Master of Science (MSc)


title: Fruits From the Tree of Sustainability. Value Creation in Green Strategic Partnerships

contributor:
Pujari, Devashish
Business Administration

abstract:
The importance of the environmental agenda has been rising exponentially in recent years. Firms face mounting pressure from multiple stakeholder groups to respond to environmental concerns. In a quest for ‘greener’ businesses, many companies increasingly rely on inter-firm strategic partnerships. Despite growing popularity among practitioners, green partnerships still remain a poorly understood phenomenon. The questions of how value is created in green partnerships, what factors drive their performance and what short-term and long-term implications of green partnerships are, still wait to be explored.
 In this dissertation, the topic of value creation in green strategic partnerships is analyzed in a two-step project.  Study 1 examines the financial outcomes of inter-firm green strategies by exploring variations in stock market valuation of green strategic partnerships across multiple industries and functional domains. Study 2 focuses on the innovation-related outcomes by examining firm green patenting activities in the context of inter-firm networks in the chemical industry.
Three complementary theoretical perspectives are utilized:  corporate social responsibility (CSR) literature, organizational capabilities and social networks analysis. Data is collected based on extensive archival search of multiple sources.
The major insight from this dissertation is that green strategic partnerships can be instrumental in unlocking value creation potential of a firm, but this phenomenon does not always happen and not for every firm. Financial implications of green partnerships vary depending on the functional domain of a partnership, a history of a firm’s environmental performance and the environmental profile of the industry.
Green technology partnerships indeed enhance firm green innovation, as reflected in a greater number of successful green patent applications, but they do so at the level of  firm networks, not at the level of the industry network. The properties of knowledge resources  such as breadth of knowledge pool, knowledge compatibility, and knowledge specificity (green versus non-green), accumulated in a firm network do affect firm propensity to achieve green innovation. The structural properties of networks influence firm green innovation only at the firm network level. More specifically firm network density is positively related to firm green innovation. At the industry network level, however, none of the explored structural properties such as global network reach, global network clustering, and global network transitivity, have any impact on firm green innovation.

abstract: Dissertation

abstract: Doctor of Philosophy (PhD)


title: A Database System for the Control and Maintenance of Computing Equipment Inventory

contributor:
Masterson, J. S.
Computation

subject: database system, control, maintenance, computing, inventory, equipment

abstract:
 It is proposed to design, develop and implement a data base system to support the requirement of the Technical Computing Services department of McMaster University with respect to their responsibilities for the control and servicing of units of computing equipment at McMaster University.

 This data base contains information concerning each unit of
equipment, its manufacturer, custodian, model number, serial number, purchase or lease record, maintenance record, past and present locations and service record.

 This project determines various cross-sections of this information to be retrieved. This includes the development of software to create, maintain, update the data base and to produce necessary reports. The design is implemented by CDC's DMS-170 with COBOL 5 as the host language.

abstract: Thesis

abstract: Master of Science (MSc)


title: Randomized Controlled Trials In Pediatric Critical Care: Advancing The Research Enterprise

contributor: Clinical Health Sciences (Health Research Methodology)

subject:
pediatric critical care
pediatric intensive care
RCT
randomized controlled trials

abstract:
Importance: Evidence from randomized controlled trials (RCTs) is required to guide treatment of critically ill children. Unfortunately such evidence is not always available.
Objectives: To describe the RCT research enterprise in pediatric critical care — the evidence and the process of creating it, along with problems and some solutions.
Methods: To meet these objectives I undertook a series of 5 related studies. First a scoping review to describe the output of the research enterprise. Second, a social network analysis of coauthorship patterns to describe the community of researchers who produce this evidence. Third, a survey to investigate the importance of RCTs in clinicians’ decision-making. Fourth, a survey of trialists to identify barriers and facilitators of high quality RCTs. Fifth, a qualitative interview study to identify acceptable, feasible and effective strategies to improve the evidence available from RCTs in pediatric critical care.
Results and conclusions: The number of RCTs in pediatric critical care is increasing but there is a preponderance of small, single-centred RCTs focusing on laboratory or physiological outcomes that are often stopped early because of feasibility problems or futility. The research community is highly fragmented and highly clustered. Experienced trialists identified approaches to improve the pediatric critical care research enterprise, including building a sense of community and ensuring key training and relevant practical experiences for new investigators. Because of the barriers that researchers face and their ethical obligation to undertake trials that are feasible and make a meaningful contribution to advancing the care of critically ill children, individuals and groups must take an active role in building a healthy research community. Only by changing how we function as a research community can we train the next generation of investigators and undertake the type of trials needed to improve the care of critically ill children.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)

abstract: Evidence from randomized controlled trials (RCTs) is required to guide treatment of critically ill children. Unfortunately such evidence is not always available. My objectives in this thesis are to describe the RCT research enterprise in pediatric critical care — the evidence and the process of creating it, along with problems and some solutions. To meet these objectives I undertook a series of 5 related studies: to identify and describe the RCTs, describe how researchers collaborate, understand how clinicians use RCTs, identify barriers and facilitators of conducting high quality RCTs, and understand how we can improve the evidence available from RCTs in pediatric critical care. We found that the number of RCTs is increasing but there are opportunities to improve the methods, outcome measures, and quality of reporting. We identified strategies that researchers can adopt to facilitate the rigorous RCTs that are needed to improve the care of critically ill children.


title: The Planetary Rolling Mill

contributor:
Kardos, G.
Mechanical Engineering

subject: planetary, rolling mill, design

abstract:
 A survey was made of the available literature on Planetary Rolling and Planetary Rolling Mills.

 From this a distillation of information was made which included a description of the mill and the material flow when rolling with it. Some independent work was done in the development of rolling formulas.

 The end result was the assembly of a design procedure which can be used to calculate roll forces and power requirements in a given Planetary Mill. With this information the capability of a given Mill to perform as required in a rolling situation can be determined.

abstract: Thesis

abstract: Master of Engineering (MEngr)


title: Variability of Soils Along a Catena

contributor:
Bunting, B. T.
Geography

subject: variability, soils, catena, landscape, hillslope

abstract:
 Several surface soil properties and topographical measures were studied at two hillslopes within the Crawford Lake Conservation Area. These measures were examined to establish any
interrelationships to support the catena concept proposed by Milne (1935).

 The results of the study show that no similar patterns as found by Anderson and Furley (1975) and which include a decrease in organic matter and increase in pH, carbonate content, or, finer particles downslope could be found. Other factors which could be found within a three-dimensional soil landscape and may influence the soil processes along a catena should also be adopted. This may then describe all relationships that could affect soil development across a hillslope.

abstract: Thesis

abstract: Bachelor of Science (BSc)


title: Simulating the Blade-Water Interactions of the Sprint Canoe Stroke

contributor:
Tullis, Stephen
Mechanical Engineering

subject:
Sprint Canoe
Canoe Sprint
Canoe Blade
Canoe Stroke
CFD
Moving Mesh
Blade Hydrodynamics
Blade Water Interaction

abstract:
As a sprint canoe athlete takes a stroke, the flow around their blade governs the transfer of power from the athlete to the water. Gaining a better understanding of this flow can lead to improved equipment design and athlete technique to increase the efficiency of their stroke. A method of modelling the complex motion of the sprint canoe stroke was developed that was able to simulate the transient 2-phase blade-water interactions during the stroke using computational fluid dynamics (CFD). The blade input motion was determined by extrapolating the changing blade position from video analysis of a national team athlete.  To simulate the blade motion a rigid inner mesh translated and rotated according to the extrapolated blade path while an outer mesh deformed according to the translation of the inner mesh; allowing for independent motion of the blade throughout the xy-plane. Instabilities associated with the blade piercing a free surface were dealt with by using a piecewise solution.
The developed model provided a first look into the complex hydrodynamics of the sprint canoe stroke. Examination of the resultant flow patterns showed the development and shedding of tip and side vortices and the resultant pressure on the blade. Late in the catch, there was an unrealistic drop in the net force on the blade which was attributed to the over-rotation of the blade causing the top two-thirds of the blade to accelerate the near surface water forward. The inclusion of an approximated shaft flexibility showed the ability to improve the net force to more realistic values.

abstract: Thesis

abstract: Master of Applied Science (MASc)


title: Dereham Township: A Study in Settlement and Land Utilization

contributor:
Wood, H.
Geography

subject: settlement, land, utilization, Dereham Township

abstract:
Abstract Not Provided.
Thesis
Bachelor of Arts (BA)


title: Geological and Precious Metal Evolution at Freegold Mountain, Dawson Range, Yukon

contributor:
Crocket, James H.
Geology

subject: geological, precious, metal evolution, Freegold Mountain, Yukon, Dawson Range, volcanic rocks

abstract:
 Freegold Mountain is part of a northwesterly trending volcanoplutonic arc comprising the eastern portion of the Yukon Crystalline Terrane. Plutonic rocks in the area intrude Paleozoic metasediments and consist of a Late Triassic to Early Cretaceous granodiorite intruded by the
Big Creek Syenite dated at 138 ± 10 Ma. A suite of K-rich intrusive volcanic rocks comprise an early period of basalt-andesite-dacite volcanism and a later rhyolitic volcanism dated at 78 ± 6 Ma. Volcanic rocks at Freegold Mountain can be correlated with Mt. Nansen Volcanics.

 Two sets of fracture planes, oriented at 165/70E and 18/80W, show dextral and sinistral displacement, respectively. Rhyolite dykes and gold-quartz veins predominantly oriented NNE have been emplaced along the 18/80W extensional fracture systems. These fractures may be
modelled as high-angle Reidel shears, although evidence indicates that fracture orientations and fault movement have been complicated by changing stress fields from middle Cretaceous to Tertiary time.

 The gold-bearing quartz veins at Freegold Mountain are high grade, low-tonnage deposits with grades ranging from 0.4 to 1.0 oz/t. Fluid inclusions from the lower portions of the Laforma mine homogenize at 185° C with salinity ranging between 2 and 4.5 wt. % NaCl equivalent. A boiling zone has been detected above the deeper ore where fluid inclusions show extreme ranges in homogenization temperatures (165-430° C) and salinity (4 - 43 wt. % NaCl). Fluid inclusion waters have stable isotopic signatures indicative of meteoric water with 𝛿D = -138 and 𝛿^18O = -18.4. Boiling of the Laforma fluid has caused a shift towards heavier hydrogen and oxygen isotopic values, mineral deposition and appears to enhance gold precipitation over non-boiling zones. Stable isotopic evidence indicates that the paleolatitude of Freegold Mountain during late Cretaceous time was south of the present day Yukon-B.C. border.

 The Emmons Hill (Dart) prospect is a gold-bearing vein-breccia
with a mineral assemblages of barite, stibnite, marcasite, cinnabar, orpiment, Fe and Mn carbonates and chalcedonic silica. Fluid inclusions from these deposits homogenize between 140-185° with salinities of 0-0.5 wt. % NaCl. This property shows marked similarities to acid-sulphate type precious metal deposits in New Zealand and western United States.

 Large (x to xx Mt) northwesterly trending diatremes appear to be structurally controlled by small transcurrent faults parallel to and coeval with displacement along the Tintina fault. The Antoniuk diatreme (3.7 Mt @ 1.14 g/t Au) consists of heterolithic and monolithic breccias intruded by dacite and rhyolite dykes. Diamond drilling indicates that a large body of fine to medium grained alaskite is present beneath the auriferous breccia. The deposit formed by the explosive escape of volatile components evolved from the retrograde boiling of a silicic magma chamber. Gold mineralization in the breccia is associated with pyrite and arsenopyrite formed at temperatures around 300°C and salinities of about 4.5 wt. % NaCl.

abstract: Thesis

abstract: Master of Science (MSc)


title: Flos Township: A Study in Settlement and Land Utilization

contributor:
Parker, W. H.
Geography

subject: settlement, Flos Township, settlement, utilization

abstract: Figure 21 (Map) is located at the end of the thesis.

abstract: Abstract Not Provided.

abstract: Thesis

abstract: Bachelor of Arts (BA)


contributor:
Burley, B.J.
Geology

abstract: Title: Petrography of the Quartz Tholeiites from the Misiones Province, Argentina, Author: Glenn M. Smelser, Location: Thode

abstract:
The Paraná basalts of the Misiones Province in Argentina are
remarkably similar with respect to their mineralogy and major
element chemistry. This is quite remarkable when considering the
vast geographic area these samples cover (a base map with sample
locations is provided in the back flap). The areal extent of the
Misiones Province is approximately 3000km2 and sample
localities separated by 300km may display a variation in their
silica contents of only 1.5%. From a viewpoint considering the
areal extent of some flood basalts, this is not at all uncommon
but is what should be expected.

The basalts sampled from the Misiones Province are all
typical quartz tholeiites with hypersthene appearing as rare
phenocrysts but more commonly is a constituent of the glassy
groundmass. The essential mineral in all these samples is a
calcic plagioclase which accounts for approximately 40% of most
samples. One inconsistency of these samples is the relative
abundance and nature of the volcanic glassy matrix which is
generally controlled by the rate of change in temperature as the
magma is brought to the surface where it subsequently
crystallizes. This volcanic glass: crystalline phase ratio,
being a near surface phenomenon requires a parameter(s) that may
account for variations of tholeiitic equilibration at shallow
depths. A feasible conclusion to satisfy this observation is
that the magma has issued out of numerous fissures, with each
fissure providing unique physical parameters that will effect the
abundance of late stage quench products such as volcanic glass.

To support this hypothesis is the abundance of dikes in the
Misiones Province that could serve as fissures for the expulsion
of the magma.

Therefore, it seems probable that these quartz tholeiites
have all been derived from a common source rock and their
mineralogical and chemical differences are attributed to their
unique near surface environments in which they equilibrated.

abstract: Thesis

abstract: Bachelor of Science (BSc)


contributor:
Walker, R.G.
Geology

abstract: Title: The Allostratigraphy and Sedimentology of lowstand and Transgressive Incised Shorefaces and Their Relationship to Incised Valleys in the Lower Cretaceous (Albian) Viking Formation, Alberta, Canada, Author: Terrence R. Wiseman, Location: Thode

abstract:
The (Upper Albian) Viking Formation can be divided into highstand,
lowstand, and transgressive systems tracts through the recognition of
regionally extensive bounding discontinuities. Two complete stratigraphic
sequences have been recognised, including lowstand incised valleys and
associated lowstand shorefaces, and transgressive valley fill and related
transgressive shorefaces.

The oldest systems tract comprises a series of regional coarsening
upward cycles. These consist of shelf-to-lower shoreface successions that
form southeastward thinning progradational highstand systems tract. These
successions merge with and possibly downlap onto the top of the underlying
Joli Fou shale.

Two approximately 30m deep incised valleys at Crystal field are
interpreted to have formed in response to fluvial downcutting across an
exposed shelf during two separate falls of relative sea level, each being at
least 30m in magnitude. Backfilling of the valleys by brackish-to-marine
sediments indicate that each relative 30m fall was succeeded by a rise of
30m or more. Several long, narrow, en-echelon, sand bodies encased in
marine shales occur in the vicinity of the Crystal field and up to 100
kilometers to the northeast. The isolated, linear sandbodies rest within
elongate, northwest-southeast trending asymmetric scours. The steep side
of each scour faces northeast. Close to the steeper side of the scour, the
sandbodies rest sharply on an erosion surface and comprise a coarsening
upward succession of bioturbated, muddy sandstone to cross bedded
sandstone. Four to five kilometers northeast of the steep edge of the scour
the facies succession is more gradational; it begins with bioturbated silty
shale, and then coarsens upward into cross bedded sandstone. The nature
of the successions along with the morphology of the asymmetrical scours
suggests deposition in an incised shoreface.

The relationship between lowstand valley incisions at Crystal and the
development of lowstand shorefaces has been determined from correlation
of well logs and cores throughout the study area. The base of sequence 1 is
characterised by a lowstand incised valley (Crystal incision #1) and the
development of the Lindbrook (LBK) lowstand shoreface. A rise in relative
sea level followed by stillstand moved the shoreline slightly to the west,
where the Joarcam (J'CAM) sandbody was deposited as a transgressive
incised shoreface succession. Renewed transgression brought the shoreline
to Crystal, where sediments backfilled (fill #1) the previously incised valley
from the Sunnybrook 'A' (SBK 'A') transgressive shoreface. Renewed
transgression moved the shoreline to Chigwell (CHIG) where a third
transgressive shoreface was incised.

The base of sequence 2 was formed during a second fall in sea level.
The Crystal valley was re-incised (Crystal incision #2) and the shoreface
moved 90 kilometers to the northeast and incised at Beaverhill Lake (BHL).
Rise in relative sea level moved the shoreface southwestward to Crystal,
where sediment again backfilled the incision (fill #2) from the Sunnybrook
'B' (SBK 'B') transgressive shoreface. Resumed transgression cut a
ravinement surface across the top of the Crystal and Sunnybrook 'B'
sandbodies and moved the shoreline out of the study area and to the
southwest.

The incised shorefaces formed either at lowstand (LBK, BHL) or during
pauses in an overall transgression (J'CAM, SBK 'A', CHIG, SBK 'B').
Lowstand shorefaces can be correlated with lowstand incised valleys, and
transgressive shorefaces can be directly correlated with the transgressive
systems tract deposits in the two incised valleys at Crystal. These internally
consistent correlations recognise two sequences at Crystal rather than the
one suggested in published illustrations.

abstract: Thesis

abstract: Master of Science (MS)


contributor:
Clifford, P.M.
Geology

abstract: Title: Metamorphic Petrology and Geochemistry Across the Grenville Province Southern Province Boundary, Dill Township, Sudbury, Author: Teunis A.P. Kwak, Location: Thode

abstract:
The geology and geochemistry of an area in Dill
township, Sudbury, Ontario are studied in detail. Emphasis is placed
on the nature of the boundary between the two provinces and the geochemistry of a sequence of pelitic schists in the Grenville province.

The boundary appears to be marked by a mylonite zone separating
pelitic schists containing andalusite-staurolite assemblages from kyanitesillimanite-staurolite ones.

The pelitic schists in the Grenville province show a steep increase
in temperature and pressure extending from the lower almandine amphibolite
to the lower granulite facies. Electron microprobe, spectrographic and wet
chemical analyses were performed on kyanite , sillimanite, biolite, muscovite
and garnet and indicated many systematic changes of elemental distribution
coefficients with changing metamorphic grade.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


contributor:
Shaw, Denis M.
Geology

abstract: Title: Petrology and Geochemistry of Ultramafic-Gabbroic Intrusions in the Abitibi Area, Ontario, Author: Neil D. MacRae, Location: Thode

abstract:
A brief review of the general geology of the
peridotite belt south of Lake Abitibi is presented. The petrography
and geochemistry of each major intrusion is discussed in detail and
mineral and element variation diagrams are drawn for a number of cross
sections. The degree of differentiation of the initial magmas is discussed
and illustrated by comparison with a hypothetical model. On
the assumption that all ultramafic-gabbroic intrusions in the area are
related, a model for the physical evolution of the assemblage is suggested.
The criteria of classification of ultramafic rocks are examined
with particular reference to the analysed rocks. In this relationship,
a brief statement of the origin of basaltic magmas is presented.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


abstract: Title: The Stratigraphy, Sedimentology and Petrography of the Upper Cretaceous Wapiabi and Belly River Formations in Southwestern Alberta, Author: Lorne R. P. Rosenthal, Location: Thode

abstract:
The Upper Cretaceous Wapiabi and Belly River
Formations are thick clastic units which are well exposed in
the foothills along the southeastern margin of the Canadian
Cordillera. The Wapiabi Formation constitutes the uppermost
unit of a thick marine sequence known as the Alberta Group.
The transition to the overlying nonmarine Belly River
Formation marks the onset of a long period of molasse type
sedimentation in the southern Alberta Basin.

The Thistle Member of the Wapiabi Formation is the
lowermost unit studied and consists of marine shale with
abundant siltstone and thin sandstone laminae which were
probably introduced into the basin by turbidity currents.
In the southern part of the study area, the overlying Chungo
Member is characterized by a lower thick coarsening upward
shoreline sandstone body which is overlain by approximately
60 meters of nonmarine coastal plain sediments. The
coarsening upward sequence is dominated by turbidites and
 hummocky and swaley sequence cross stratification. These structures
record a significant storm influence in a
shallow marine setting. In the central part of the study
area, nonmarine Chungo strata are absent. The nonmarine
strata appear to have been replaced by thick sections of
nearshore to shallow marine sandstones and mudstones which
are organized into several coarsening upward sequences.
Each sequence is capped by a thin transgressive conglomerate
or pebbly mudstone. In the northern part of the study area,
the Chungo Member is represented by a 5 meter interval of
bioturbated sandstone which overlies an anomalously thick
interval of bioturbated sandy mudstones of the Hanson
Member. The Chungo interval is interpreted to have been
deposited by a wave and storm dominated shoreline complex
which prograded from south to north into the Alberta Basin.

The Chungo regression was terminated by the Nomad
transgression which shifted the Cretaceous shoreline
approximately 150 km to the south. This shoreline retreat
is essentially nondepositional although the base of the
overlying marine sequence is commonly marked by a thin
pebbly mudstone or conglomerate. The transition from the
marine Nomad Member to the overlying nonmarine Belly River
Formation is typically abrupt and occurs across less than 5
meters of section. In the south, this transition is marked by a sharp based
trough cross stratified sandstone unit
approximately 5 meters in thickness which rests directly on
bioturbated mudstone and which is overlain by rooted
carbonaceous nonmarine strata. These fining upwards
sandstone units are interpreted as low energy tidally
influenced shoreline deposits. In the northern half of the
study area, the Nomad to Chungo transition is marked by a
thin coarsening and thickening upward sandstone-mudstone
sequence. This sequence is capped by a trough cross
stratified and parallel laminated sandstone which is thought
to have been deposited by the progradation of a beach type
shoreline.

Little paleocurrent data were available from this
Nomad-Belly River regressive sequence but previous heavy
mineral studies have indicated that the source area lay to
the northwest and that major drainage systems flowed to the
east and southeast.

Petrographic data suggest that the Chungo and Belly
River Formation, were derived from different source areas.
During Chungo time, much of the sedimentary detritus was
derived from the Elkhorn volcanic field of west central
Montana. During deposition of the lower Belly River
sandstones much of the sediment was derived from erosion of
uplifted sedimentary, volcanic, and metamorphic rocks in the
rising Cordillera to the west and northwest.

abstract: Thesis

abstract: Master of Science (MS)


abstract: Title: Sedimentology and Stratigraphy of the Viking Formation, Eureka field, Southwestern Saskatchewan, Author: Joseph G. Pozzobon, Location: Thode

abstract:
Four distinct packages can be defined within Viking
sediments at Eureka on the basis of detailed core and log
correlations. These packages are separated by either
erosional surfaces or muddy horizons, which are interpreted
as the result of changes of relative sea level.

The bulk of Viking sediments at Eureka occur in packages which "offlap" towards the south.

The bulk of these packages is composed of 2 main facies:
1) A pervasively bioturbated muddy glauconitic sandstone
facies (facies E), and 2) A moderately bioturbated
interbedded sand, silt, and mud facies (facies C, I1 , and
I2). Facies I1 becomes muddier upwards by an overall
decrease in the thickness and relative proportion of silt
and sand layers while facies C and I2 clean upwards by an
overall increase in the thickness and relative proportion
of silt and sand layers. These facies shew none of the
characteristics commonly associated with tidal sediments
such as angle of repose cross-bedding, reactivation
surfaces, spring-neap cycles, and tidal bundles. The
ichnology and degree of bioturbation suggests that these
facies belong to the Cruziana ichnofacies defined by Frey
and Pemberton (1984).

Facies E constitutes the main sand bodies at Eureka.
It is composed of fine-medium grained totally bioturbated
glauconitic sand, and coarsens upwards overall. It becomes
muddier southwards and intertongues with facies I. An
unconformity surface separates facies E from the underlying
facies. Within facies E, log-core markers occur which may
or may not represent muddy intervals, and which may or may
not be sideritized.

In the context of Viking regional paleogeography
(which puts the area north of Eureka in an open marine
setting), the migration of an offshore bar and the
redistribution of barrier island deposits are suggested as
two possible origins for the southwards offlapping packages
which occur at Eureka.

abstract: Thesis

abstract: Master of Science (MS)


abstract: Title: High-resolution Stratigraphy, Reservoir Geometry, and Facies Characterization of Cretaceous and Tertiary Turbidites from Brazilian Passive Margin Basins, Author: Carlos H. L. Bruhn, Location: Thode

abstract:
Two canyon-filling, coarse-grained turbidite systems have
been studied, essentially at the oil-field scale, in immature
passive margin basins of eastern Brazil. Three oil fields were
chosen for detailed study from a group of over 120 turbidite
oil fields distributed along the eastern Brazilian margin;
Carapeba and Parga fields (tabular or lobate reservoirs,
Coniacian/Santonian to early Maastrichtian, Campos basin), and
Lagoa Parda field (channelized reservoirs, early Eocene,
Espirito Santo basin). The three oil fields combined contain
162 wells (20 cored), with average spacing of 200- 500 m.

The Carapeba/Pargo turbidite system contains 181 - 198
coarse-grained turbidites, each with a thickness in the 0.5 -
12 m range. There are eight facies successions, 27 - 140 m
thick. Each succession contains between 7 and 58 turbidites.
Most of these successions become finer-grained upward and
downcanyon, and their younger or more distal turbidites tend
to become thinner-bedded and more discontinuous. The
Carapeba/Pargo turbidite successions form 1 - 12 km wide, nonchannelized,
tabular or lobate sandstone bodies. They were
stacked in an overall retrogradational pattern for at least 20
km, recording the backfilling of the Carapeba/Pargo canyon.

The Lagoa Parda turbidite system contains unstratified,
coarse-grained turbidites up to 6 m thick, with interbedded
bioturbated mudstones and thin-bedded(< 70 cm), stratified,
fine-grained sandstones. The coarse-grained facies fill 38
deeply-incised channels; these channel fills are 9 - > 50 m
thick, 210 - > 1,050 m wide, and > 1 km long. The finergrained
facies build asymmetrical levees that are higher and
thicker on the left side (looking downstream) of their
associated channels. Nine levee successions (up to 50 m thick)
are associated with the 20 youngest channels. The overall
Lagoa Parda turbidite system is characterized by channel fills
that become narrower, thinner, and finer-grained upward. As a
result of the common amalgamation of channel fills, and the
partial preservation of levee deposits between channel fills,
Lagoa Parda reservoirs show a complicated, multi-storied sand
body geometry

Coarse-grained turbidite successions that fill canyons
were developed in the eastern Brazilian margin during relative
sea level falls that punctuated the overall transgressive
setting of the late Cretaceous and early Tertiary. Only a few
of the turbidite successions studied here can be correlated
with global, eustatic sea level curves. Most of the relative
sea level falls probably resulted from increased sediment
supply, which, in turn, would have responded to tectonic
reactivation in the source area and basin margin, and/or to
climatically-controlled denudation rates in the source area.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


title: Reasoning By Precedent

contributor:
Waluchow, Wil
Philosophy

subject: precedent, reasoning, argumentation, legal philosophy

abstract: This thesis develops a novel account of judicial common-law reasoning by precedent. If a new case is relevantly similar to a precedent case, judges are generally bound to follow the decision made in the precedent case. Important differences between cases can justify deciding the new case differently. The literature offers two main approaches to reasoning by precedent. According to rule-based-approaches, every case is decided by either following an existing rule or establishing a new one. I show that rule-based approaches are untenable. Analogy-based approaches claim that similarities and differences between two cases are determined through reasoning by analogy. These approaches are problematic because some similarity or difference can always be found between two cases. Accounts suggested so far cannot explain how precedents can provide significant guidance to judges. My dissertation salvages analogy-based approaches by supplementing them with insights from argumentation theory. Analogies contain a figurative part that is used to make someone see the analogy‘s literal part in a new way. An arguer can manipulate her interlocutor‘s perception of the literal part through the way she describes the figurative part by rhetorically drawing attention to those similarities that she considers relevant. Arguments by analogy use this to convince interlocutors of conclusions about the literal part. I propose to see judges in the role of interlocutors, evaluating arguments by precedent. The opinion that documents the precedent case from the point of view of the former judge is the figurative part of an analogy. The literal part is the new case. They form an analogical argument for repeating the precedent decision. The judge evaluates the argument by considering a number of critical questions. If all the critical questions can be answered, the precedent is applicable and must be followed. Otherwise, the precedent is either not applicable or has to be distinguished.

abstract: Dissertation

abstract: Doctor of Philosophy (PhD)

abstract: This thesis describes reasoning by precedent in the common law. I discuss two important approaches to how reasoning by precedent works, rule-based theories and analogy-based theories. I reject rule-based theories as untenable. I describe the main problem analogy-based theories face: To show that precedents can constrain judicial reasoning so that judges cannot decide cases according to their own normative commitments. I use insights from psychological research into analogical reasoning and from argumentation theory to develop a new analogy-based account. I suggest that judges should be seen as interlocutors evaluating an argument by precedent. This argument contains an analogy between precedent case and present case, and a rule stating that the precedent decision needs to be followed if precedent case and present case are legally the same. The judge needs to first understand the analogy under the application of the principle of charity, and then evaluate it using critical questions.


abstract: Title: Structural Study of the Kakagi Lake Area Northwestern Ontario, Author: Robert G. Cuddy, Location: Thode

abstract:
An area situated near Nestor Falls, Northwestern Ontario
was geologically mapped, described, and structurally analyzed.

Rock specimens were sectioned to provide additional
infomation on the petrology and metamorphic geology.

Six structural domains outlined in the area are examined
using data obtained in the field. Many effects of both ductile and
brittle deformation were recognized and are described. Mesoscopic
and macroscopic structures were analyzed when sufficient data was
available. At least three generations of folding were recognized
and are described. Finally, an interpretation of the successive
sequence of geologic events is given.

abstract: Thesis

abstract: Master of Science (MS)


contributor:
McNutt, Robert H.
Crocket, James H.
Geology

abstract: Title: Petrology and Geochemistry of the Volcanic Host Rocks to the West and North Pits of the Sherman Mine Iron Formation, Temagami, Ontario, Author: Teresa D. Hurley, Location: Thode

abstract:
A detailed study was undertaken of the volcanic host
rocks underlying the northern band of iron formation at the
Sheraan Mine, Temagami, Ontario. The main objective of the study
was to characterize the volcanic activity which immediately preceeded
the iron formation deposition. A 1.5 km volcanic section
was characterized through detailed geological mapping and extensive
lithogeochemical sampling .

Felsic pyroclastics are the immediate volcanics underlying
the iron formation in the West Pit. The pyroclastics commonly
host disseminated to massive, stratiform sulphide zones which
carry anomalous Au, As and Sb contents. The section extending 1
to 1.5 km stratigraphically below the iron formation is dominated
by calc-alkaline andesites with subordinate intercalated dacites,
rhyolites, and calc-alkaline and tholeiitic basalts. A small
eruptive center or focus of volcanism has been identified in the
northeast corner of the section .

The volcanics are notably enriched in Cr and Zn and depleted
in Cu and Ni. The dacites and rhyolites contain slightly
elevated contents of Au. A pervasive depletion of Na is evident
in all rock types, and Ca is generally depleted in the intermediate
to mafic volcanics. It is suggested that these elements
were leached from the rocks during hydrothermal seawater circulation. Various degrees of chloritization, carbonatization and
silicification reflect hydrothermal alteration of the volcanic
pile.

A similarity in the major element chemistry and rare
earth element patterns exists between the volcanics underlying
the iron formation and the volcanics of the Marda Complex,
western Australia . A similar tectonic setting between the Marda
Complex and the Temagami greenstone belt is inferred from this
similarity. As such, the Temagami volcanics are considered
analogous to continental margin calc-alkaline suites. Evidence
of hydrothermal seawater circulation in the Temagami volcanics
suggests some separation of volcanism from the continental
margin , perhaps by a small ocean basin.

abstract: Thesis

abstract: Master of Science (MS)


abstract: Title: Origin and Metamorphism of Part of the Hermon Group Near Bancroft, Ontario, Author: David S. Jennings, Location: Thode

abstract:
A detailed geological and petrochernical study of an upper
amphibolite grade, "Grenville Series" sequence is presented. Integrated
structural, stratigraphic and geochemical data have led to the conclusion
that this seqluence accumulated as an interbanded volcanic and sedimentary
prism either in an Upper Proterozoic geosyncline or volcano-tectonic depression .

Metamorphic phase assemblages, in general, approach
equilibrium. As assemblage showing disequilibrium, "frozen", re -
actions are discussed in detail. Experimental data on all the phase
assemblages suggests the most probable range of metamorphic conditions to be 625° to 690° and 5. 5 to 7 kilobars total pressure. The
11
effects of retrograde metamorphism on the prograde assemblages
are documented.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)


abstract: Title: Deep-Sea Fan-Valley Conglomerate: Cap Enrage Formation, Gaspe, Quebec, Author: Barry A. Johnson, Location: Thode

abstract:
The conglomerates of the Cambro-Ordovician Cap Enrage Formation,
Gaspe, Quebec, were deposited and are now localized in basic depositional
units called 'pods'. Pods are discontinuous in a longitudinal (parallel
to flow) direction and a lateral direction where they also decrease in
size, coarseness and abundance. Maximum average pod dimensions are approximately
400 m in longitudinal length and 100-200 m in width. Penecontemporaneous
erosion has reduced pod thickness to a remanent maximum
average of approximately 5 m. Preferred clast fabric consists of longaxes
parallel to flow and dipping upcurrent; it is best developed in the
well-sorted coarse pebble conglomerate and is the single quantifiable
paleocurrent indicator in the conglomerate.

The orientated descriptive framework evolves around the pod
which has a broadly, concave-up base and an omnidirectional, continuous
facies change from cobble/boulder conglomerate dominating the pods'
center/base through to the horizontal equivalent and veneer of sandstone.
Peripheral pod termini also commonly occur as scoured, delicate featheredge
alternations of conglomerate and sandstone. Massive fabric disorganization
is common at the pods' center/base. Cobble/pebble train
stratification becomes apparent near the facies transition from cobble
to coarse pebble conglomerate and grades into and/or alternates with
subparallel quartz granule layer stratification which in turn gently
converges towards the pod periphery and increases in abundance vertically.
Grading is best developed in the coarse pebble conglomerate facies and
is defined by normal coarse-tail and distribution grading of clast size
and by an inverse-like grading of abundance of quartz granules and
clasts. It appears that inverse grading in its descriptive-genetic
sense is absent.

The sedimentological 'thalweg model' has an overall fining and
thinning upward character and has four divisions. Division 'W' consists
of the conglomerate horizons' basal few pods which are very coarse
grained and have sharp, erosional, undulatory and, commonly, diapirically
deformed bases. Division 'X' consists of conglomerate pods and interbedded
sandstone beds and exhibits no consistent vertical change between pods
and/or beds in clast size, facies relationships, sedimentary structure
occurrences or pod morphology. Division 'Y' consists of vertically
thinning and fining conglomerate pods in decreasing abundance interbedded
with sandstone. Division 'Z' is a sandstone horizon composed of beds of
pebbly sandstone and coarse, massive sandstone with and without dish-structure.

The conglomerate pods are interpreted to be the infill remanents
of scour depressions deposited by mass flows which had their
conglomerate deposition generally restricted to the thalweg channel of
a fan-valley. The sandstone is preserved in the fan-valley as deposits
within and adjacent to the thalweg channel. The thalweg channel meanders
with an approximate 40° change in trend over a 7 Km straight-line
distance and migrates discontinuously as a result of intermittent,
very powerful mass flows breaking away from established channels and
carving a new thalweg channel elsewhere in the fan-valley.

abstract: Thesis

abstract: Master of Science (MS)


title: Metamorphism, Structure, and Techtonics of the Eastern Cape Smith Belt, Northern Quebe

contributor:
McNutt, R.M.
Geology

abstract: Title: Metamorphism, Structure, and Tectonics of the Eastern Cape Smith Belt, Northern Quebec, Author: David J. Scott, Location: Thode

abstract:
The Cape Smith Belt of northernmost Quebec is a sedimentary/
volcanic belt at the boundary of the dominantly gneissic Churchill
and Superior structural provinces.

Within the Belt, three distinct phases of deformation and a metamorphic culmination are evident. Thrusting and imbrication of Belt rocks lead to the thermal culmination, a pattern similar to numerous Fold-Thrust Belts, including the eastern Alps. This is followed by an episode of coaxial folding. A late cross-folding event provides up to 12km of structural relief in the study area, at the eastern end of the Belt.

Metamorphism in the study area is of the hot-side-down Barrovian type. A systematic progression is seen from lower-greenschist to mid-amphibolite facies, from west to northeast across the study area. Minimum temperatures of 575°C and pressures of 5.5 kbar are suggested by the highest grade assemblages in pelitic rocks in the northeastern corner of the Belt.

Shallow-water ironstone and carbonate, deeper water siliciclastics, and rift volcanics are present stratigraphically from bottom to top. Restored to a pre-deformation state, this sequence is believed to represent a transition from passive margin to crustal rifting, from on- to off-shore, subsequently imbricated during
collision of two crustal blocks. The rocks of the Belt are allochthonous, with the exception of those on the southern margin, having been thrusted southward onto the Superior craton during imbrication.

These findings are consistent with the current tectonic model for this area.

abstract: Thesis

abstract: Bachelor of Science (BSc)


title: Sedimentology, Facies Associations and Sequence Stratigraphy of Falher divisions C and D of the Lower Cretaceous Spirit River Formation, West-Central  Alberta, Canada

abstract: Title: Sedimentology, Facies Associations and Sequence Stratigraphy of Falher Divisions C and D of the Lower Cretaceous Spirit River Formation, West-Central  Alberta, Canada, Author: Jhonny E. Casas, Location: Thode

abstract:
The Lower Cretaceous Falher Member (Spirit River Formation) in the
Deep Basin of Alberta is composed of 5 coarsening-upward successions (A-E). Using an allostratigraphic approach, Falher D and C were each split into four shoreface units, deposited as a strandplain system trending east-west, with the open sea to the north.

The shoreface units of Falher D are characterized by very fine-to-fine-grained sandstones with swaley cross-stratification. Conglomerates and conglomeratic sandstones with cross-bedding are present in limited bodies trending east-west across the study area. The presence of swaley cross-stratification in the sandstones, combined with a Skolithos-Cruziana trace fauna assemblage, suggest that this facies represents wave- to storm-dominated deposition in a high-energy, upper to middle shoreface environment, above fair-weather wave base. Seaward, sandier-upward successions with hummocky cross-stratified very fine-grained sandstones interbedded with marine mudstones represent lower shoreface to offshore deposits.

The basal surface of Falher D overlies nonmarine deposits (Falher E) and
is defined by a marine flooding surface (transgressive surface of erosion).
Southward, all the facies become more continental and the marine flooding surface passes into a lagoon-on-nonmarine contact. Falher D contains a series of shingled marine sandstone lenses (units D1, D2, D3 and D4) separated by erosional surfaces interpreted as seaward-dipping ravinement surfaces. These indicate different phases of marine transgression and regression. In each unit the transgressive system tract can be preserved as barrier sands, transgressive lagoonal deposits, transgressive marine mudstones or coarse transgressive lag deposits. The highstand systems tract comprises a shoreface succession which prograded as a strandplain composed of sandy and conglomeratic shoreface deposits. In most of the units, upper shoreface conglomerates trend east-west parallel to the paleoshoreline. The top of Falher D is represented by aggradational coastal plain deposits.

The shoreface units of Falher C are characterized by very-fine to fine-grained sandstones with swaley cross-stratification. The presence of swaley cross-stratification in the sandstones, combined with a Skolithos-Cruziana ichnofossil assemblage, suggest that this facies represents wave- to storm-dominated
deposition in a high-energy, upper to middle shoreface environment.
Upper shoreface conglomerates and conglomeratic sandstones with crossbedding are present in limited bodies trending east-west.

The basal surface of Falher C across the study area is a composite of
different marine flooding surfaces which overlie the aggradational coastal plain deposits of Falher D.

Falher C contains a series of shoreface units (C1, C2 and C3) separated by erosional surfaces. The transgressive systems tract in each unit can be preserved as transgressive marine mudstones and/or coarse transgressive lag deposits. The highstand systems tract comprises a succession of sandy and conglomeratic shoreface deposits, prograded as a strandplain system.

A major relative sea level fall ended the progradation of unit C3 producing a sequence boundary and a seaward shift of the shoreface facies beyond the northern edge of the study area. A relative sea level rise caused
shoreface migration southward (landward) and the transgressive system tract is preserved as 4-7 m thick marine mudstones. Progradational shoreface deposits of unit C4 took place during highstand.

In Falher C, a north-south trending channel (CS) cuts into shoreface
deposits of unit C4. This channel was probably feeding shoreface C4 during its progradation. The uppermost part of Falher C was filled by aggradational coastal plain deposits and the top of Falher C is defined by a marine flooding surface with erosional truncation during the shoreface retreat that defines the base of Falher B.

The duration of the transgressive-regressive event in each shoreface unit within Falher D and C has been estimated to be approximately 42,968 years, corresponding with fifth-order cyclic sea level changes. The changes in relative sea level during deposition of Falher D and C may be controlled by combined
autocyclic and allocyclic processes.

abstract: Thesis

abstract: Master of Science (MS)


abstract: Title: Structural and Petrologic Relations across the Grenville Province-Southern Province Boundary, Sudbury District, Ontario, Author: John R. Henderson, Location: Thode

abstract:
A region across the Grenville province-Southern province
boundary was mapped, described and analysed. Structural fabric
analyses and relationships between deformation and metamorphism
were emphasized; especially in regard to Southern province
rocks that were strained and recrystallized during the final
Grenville orogenic episode.

Critical review of the literature on the region showed that
metasedimentary rocks in the research area belong to the
Huronian System, and that a granitic body of batholithic size
was emplaced more than 600 million years before it was recrystallized
last.

Many tectonite fabrics were shown to be products of homogeneous
strain, and, wherever possible, principal strain axes were
determined in relation to fabric symmetry axes. Comparison
of internal fabrics of salt domes with structural fabrics in
the research area indicated that the principal flowage occured
in the direction of maximum elongation. Finally, the Grenville-Southern
province boundary was defined genetically as a
dynamo-thermal metamorphic gradient.

abstract: Thesis

abstract: Doctor of Philosophy (PhD)