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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A geochemical and geochronological assessment of the Great Glen Fault as a terrane boundary

Peters, D. January 2001 (has links)
The Great Glen Fault (GGF) is a major northeast to southwest trending structure and has been interpreted as a terrane boundary separating the Precambrian Moine terrane to the northwest from the Precambrian Dalradian terrane to the southeast (e. g. Bluck & Dempster 1991). If the GGF is a terrane boundary no `Moine' rocks could be found southeast of the GGF and no `Dalradian' rocks could be found to the northwest of the GGF and each crustal block would have distinct tectonometamorphic, provenance and igneous intrusive characteristics. To assess this, carefully selected orthoamphibolite and metasediment samples were collected from both the Northern and Central Highlands, and were analysed by a combination of petrography, geochemistry and geochronology. Geochemical analysis suggests that a Neoproterozoic metagabbro and metadolerite suite was emplaced during crustal extension across the Northern and Central Highlands at approximately the same time, and that this suite represents an earlier intrusive event to that represented by amphibolites in the Dalradian Appin Group. Geochemistry also suggests that the Upper Morar Psammite Formation of the Moine Supergroup in the Northern Highlands is unlikely to correlate with the pebbly psammite formations in the Central Highlands and shows that the Upper Shiaba Psammite Formation metasediments on the Isle of Mull are geochemically distinct from the Upper Morar Psammite Formation metasediments on the mainland. The Glen Urquhart Complex in the Northern Highlands cannot be correlated with the Ord Ban Subgroup or Grantown Formation in the Central Highlands. However, despite these differences U-Pb detrital geochronology shows that the Upper Morar Psammite and Central Highland pebbly psammite formations are dominantly derived from similar Mesoproterozoic and Palaeoproterozoic sources, with a small amount of material of Archaean derivation. This, together with the matching amphibolite suites, means that the Great Glen Fault is very unlikely to be a terrane boundary.
2

Die handschriftliche Überlieferung des "Georgius continuatus" (Redaktion A) /

Sakellaridou-Sotiroudi, Alexandra. January 1989 (has links)
Texte remanié de: Diss.--Fachbereich Geschichtswissenschaft--Universität Hamburg, 1986. / Contient des extraits du texte grec du "Georgius continuatus" Bibliogr. p. IX-XIII. Index.
3

Vorticity of Flow, Deformation Temperatures, and Strain Symmetry of the Moine Thrust Zone, NW Scotland: Constraining the Kinematic and Thermal Evolution of a Collisional Orogenic System

Thigpen, James Ryan 16 July 2009 (has links)
Examination of deformation temperature, flow vorticity, and strain symmetry in the Loch Eriboll, Loch More, and Assynt regions of the Moine thrust zone (MTZ) in northwest Scotland allows quantitative kinematic and thermal characterization of a crustal-scale shear zone at the base of the Scandian (435-425 Ma) orogenic wedge. Quartz crystal fabrics, kinematic vorticity (Wm), and strain estimates from the ductile thrust sheets in this region are used to determine how pure and simple shear components of deformation are partitioned, and indicate that these processes may be thermally, structurally, and lithologically dependent. Vorticity analysis of samples collected along strike in the MTZ and overlying Moine nappe indicate that Scandian thrusting and deformation involved a considerable pure shear component. Integrated strain and vorticity estimates indicate that significant sub-vertical foliation normal shortening has occurred as nappe stacking progressed. Along strike Wm variation could not be directly correlated with changes in footwall structural architecture, lithology, deformation temperatures, or structural depth and are thus interpreted to reflect local variability driven by a complex interplay of these and possibly other factors. Quartz c- and a-axis fabrics indicate that deformation in the footwall of the Moine thrust involved plane strain to general flattening strain with only a minor rotational (non-coaxial) component. In contrast, deformation in the Moine nappe was strongly non-coaxial, as indicated by asymmetric single girdle c-axis fabrics. Quartz c-axis opening angles and microstructures suggest that deformation temperatures increase from north to south and from structurally lower to structurally higher levels in the footwall to the Moine thrust. Vertical ductile thinning must be accommodated by either volume loss or extrusion of material towards the synorogenic topographic surface. Extrusion towards the synorogenic topographic surface implies a causal link between upper and lower crustal processes, with significant implications for the kinematic, geometric, and kinetic (deformation rates) evolution of the Scandian orogenic wedge. New thermobarometric and deformation temperature estimates are combined with structural and kinematic investigations to characterize the thermal structure of the Moine, Ben Hope, and related nappes. At the leading edge of the Moine thrust, subhedral garnets with prograde compositional growth zoning yield peak temperatures (grt-bio) of 440-492 °C at 4.5-6.0 kbars from Creagan Meall Horn to northern Assynt. Three samples collected at similar structural positions along the leading edge of the Moine nappe yield deformation temperatures of 420-460 °C, as determined from quartz c-axis opening angles. At the structurally highest position in the Moine nappe, garnet prograde compositional zoning profiles are preserved and samples yields P-T estimates of 565-571 °C (grt-bio) and 4.5-5.1 kbar (GRAIL barometer, minimum pressure due to absence of Al2SiO5 phase). Quartz c-axis fabrics of samples collected at similar structural positions yield deformation temperature estimates of 490-565 °C. In the structurally higher Ben Hope nappe, two phases of prograde compositional growth zoning are preserved in garnet bearing amphibolite near Portvasgo. The later outer garnet rim records P-T conditions of 655-672 °C at 3.9-5.1 kbars. The inverted metamorphic sequence from the Moine to the Naver thrust is mostly intact and is interpreted to be Scandian (435-420 Ma) in age. It is likely that the formation of this inverted sequence is due to a combination of progressive accretion of successively lower grade thrust sheets onto the base of the Scandian wedge and heating of the Moine and Ben Hope nappes from above by the relatively higher temperature migmatites of the Naver thrust. Vertical ductile thinning, in conjunction with erosion and normal faulting, likely led to rapid exhumation of the Scandian nappe pile and in turn preserved the inverted metamorphic sequence. / Ph. D.
4

Flow Properties of Moine Thrust Zone Mylonites in Northern Assynt, NW Scotland

Roth, Benjamin Louis 11 January 2011 (has links)
Quartz-rich mylonites present along the Moine Thrust Zone are well suited for the application of various analytical techniques designed for investigating the flow processes by which rock deformation occurred. These analytical techniques were applied to a suite of samples from the footwall and hangingwall of the Moine thrust exposed along the Allt Pol aâ Mhadaich stream located in the northern part of the Assynt window. Vorticity analyses were performed to determine the relative contributions of pure and simple shear deformation within the penetratively deforming thrust sheets. Integration of vorticity data with 3D strain analyses demonstrated that sub-vertical shortening perpendicular to the flow plane, accompanied by thrust transport parallel extension, occurred during mylonitization, and was driven by emplacement of the overlying Moine nappe. Quartz c-axis fabrics in the mylonites are characterized by well-defined asymmetric Type-1 cross girdles in which internal and external skeletal asymmetries are indicative of a top-to-the-WNW shear sense, compatible with regional thrusting. These c-axis fabrics were also used to estimate deformation temperatures. Differential flow stresses associated with mylonitization were estimated from the grain size of dynamically recrystallized quartz. Deformation temperature and flow stress data were then incorporated into a dislocation creep flow law for quartz to estimate strain rates. Finally, along strike variation in these flow properties at the base of the Moine nappe to the north and south of the APM section were investigated and results from the APM section compared with previously published studies of mylonites exposed in eastern Assynt that occupy similar structural positions. / Master of Science
5

"De koophandel van Amsterdam" een critische studie over het koopmanshandboek

Jansen, Lucas. Le Moine de L'Espine, Jacques, January 1946 (has links)
Proefschrift--Amsterdam. / "Stellingen": [3] p. inserted. "Tekst van 'Le négoce d'Amsterdam' van Le Moine de l'Espine (1694)": p. 365-396.
6

La pensée de Hanshan Deqing (1546-1623) : une lecture bouddhiste des textes confucéens et taoïstes / Hanshan Deqing’s thought (1546-1623) : a Buddhist interpretation of the Confucian and Taoist classics

Hiu, Yunyan 07 November 2014 (has links)
Hanshan Deqing 憨山德清 (1546-1623), est l’un des « Quatre moines bouddhistes éminents » de la fin de dynastie Ming, en Chine qui avaient pris conscience de l’importance et de la nécessité d’une conciliation entre les trois enseignements chinois que sont le bouddhisme, le confucianisme et le taoïsme. Ses annotations du Zhuangzi, du Daode jing, de l’Invariable Milieu et de La Grande Étude demeurent très importantes pour l’étude des tentatives de syncrétisme des trois enseignements. Il fut en effet le premier moine à avoir rédigé autant de commentaires des classiques taoïstes et confucéens afin de montrer que de nombreuses idées de ces deux enseignements d’origine chinoise sont similaires à celles de la pensée bouddhiste. Il est aussi l’auteur d’une dissertation qui démontre la possibilité du rapprochement entre les trois enseignements, tout en maintenant la précellence du bouddhisme. En étudiant de près tous ses commentaires non-bouddhistes et sa dissertation à propos des trois enseignements, nous avons constaté que le moine avait transformé la pensée taoïste et la pensée confucéenne en des doctrines quasi bouddhistes, proches tantôt du Grand Véhicule, tantôt du Petit Véhicule, en fonction des passages examinés. Certains concepts bouddhistes sont très récurrents dans ses commentaires non-bouddhistes. Hanshan Deqing montre que les auteurs des classiques taoïstes et confucéens qu’il annote avaient déjà pressenti l’importance des concepts qui sont au cœur de la pensée bouddhiste et permettent d’atteindre l’illumination ou de conduire des pratiques sotériologiques. À travers ces commentaires, on décèle l’intention de Hanshan Deqing : porter à la connaissance des lettrés, des taoïstes, voire des adeptes bouddhistes eux-mêmes, les procédures permettant d’accéder à l’Éveil, pour ensuite aider d’autres êtres à sortir de leur égarement et de leur attachement au monde. / Hanshan Deqing 憨山德清 (1546-1623) is one of the “Four Eminent Buddhist monks” of the late Ming dynasty in China who realized the importance and the necessity of the reconciliation between the three Chinese philosophies: Buddhism, Confucianism and Taoism. His annotations of the Zhuangzi, of the Daode jing, of the Doctrine of the Mean, of the Great Learning are of seminal importance in the attempt to fusion the three philosophies. He was indeed the first monk to have written so many commentaries of the Taoist and the Confucian classics in order to show that numerous thoughts of these two philosophies originating from China are similar to the ones of Buddhism. He is also the writer of a dissertation that demonstrates the possibility of establishing bridges between the three philosophies, even if he considers Buddhism as superior. Studying closely all his non-Buddhist commentaries and his dissertation about the three philosophies, we noticed that the monk had transformed the Taoist thought and the Confucian thought nearly into Buddhist doctrines, sometimes close to the Mahāyāna, sometimes close to the Hīnayāna, depending on the examined passages. Some Buddhist concepts are very recurrent in his non-Buddhist commentaries. Hanshan Deaing points out that the writers of the Taoist and Confucian classics that he annotates had already sensed the importance of the concepts which are at the heart of the Buddhist mind and enable to reach the enlightenment or the realization of the soteriological practices.Through these commentaries, we can discover Hanshan Deqing’s intention: to make the lettered persons, the Taoists or even the Buddhist disciples themselves aware of the procedures allowing them to reach the Awakening and then to help others beings to be released from their blindness and their attachment to the world.
7

Stress and strain rate estimates associated with penetrative deformation of the Harkless quartzite aureole rocks, Papoose Flat Pluton, California/Using structure contour maps to analyze subsurface 3D fault geometry along segments of the Moine Thrust

Heaverlo, Nicholas D. 03 June 2014 (has links)
Dynamically recrystallized quartz microstructures preserved in contact aureoles allow for stress and strain rate estimates associated with penetrative deformation of rocks surrounding pluton margins. Microstructural analysis of the Harkless quartzites surrounding the western margin of Papoose Flat pluton indicates that recrystallization occurred by grain boundary migration with mean recrystallized grain size ranging from 86-225 µm. The application of three calibrated piezometers results in differential stress estimates between ~11 and ~29 MPa. Published wet-quartzite dislocation creep flow laws combined with deformation temperature, water fugacity, and differential stress estimates infer strain rates that range from 1.2 x 10⁻¹⁴ s⁻¹ to 2.3 x 10⁻¹² s⁻¹. In order to analyze 3D subsurface fault geometry along map-pattern curves (salients and recesses), a structure contour map of the Moine thrust, extending from the North Coast southwards to the Dundonnel area, was constructed from 1:50,000 scale British Geological Survey (BGS) maps by correlating between elevation control points constrained by the intersection of the fault trace with topographic contours. The structure contour map indicates significant lateral variation in fault geometry along the Moine thrust, with recesses associated with antiformal corrugations in the subsurface and salients characterized by planar geometries or broad synformal corrugations. Additionally, structure contour maps constructed on the Glencoul thrust, as depicted by original BGS maps confirms that the thrust segments to the NE and SW of Loch Glencoul are part of the same structure, rather than different structures separated by a lateral ramp as shown on more recent BGS maps. / Master of Science
8

Piezometry and Strain Rate Estimates Along Mid-Crustal Shear Zones

Francsis, Matthew Keegan 21 May 2012 (has links)
Dynamically recrystallized quartz microstructure and grainsize evolution along mid-crustal shear zones allows for the estimation of tectonic driving stresses and strain rates acting in the mid-crust. Quartz-rich tectonites from three exhumed mid-crustal shear zones, the Main Central Thrust (MCT; Sutlej valley, NW India), South Tibetan Detachment System (STDS; Rongbuk valley, S Tibet), and Moine thrust (NW Scotland), were analyzed. Deformation temperatures estimated from quartz microstructural and petrofabric thermometers indicate steep apparent thermal gradients (80–420 °C/km) across 0.5–2.3 km thick sample transects across each shear zone. Quartz recrystallization microstructures evolve from transitional bulging/sub-grain rotation to dominant grain boundary migration at ~ 200 m structural distance as traced away from each shear zone. Optically measured quartz grainsizes increase from ~ 30 μm nearest the shear zones to 120+ μm at the largest structural distances. First-order Zener space analysis across the Moine nappe suggests strong phyllosilicate control on recrystallized quartz grainsize. Recrystallized quartz grainsize piezometry indicates that differential stress levels sharply decrease away from the shear zones from ~ 35 MPa to 10 MPa at ~ 200 m structural distance. Strain rates estimated with quartz dislocation creep flow laws are tectonically reasonable, between 10⁻¹² – 10⁻¹⁴ s⁻¹. Traced towards each shear zone strain rate estimates first decrease one order of magnitude before rapidly increasing one to two orders of magnitude at structural distances of ~ 200 m. This kinked strain rate profile is likely due to the steep apparent thermal gradients and relatively constant differential stress levels at large structural distances. / Master of Science
9

La nocturnalité chez les oiseux côtiers et marins : étude comparative des structures et fonctions rétiniennes

Émond, Martine January 2006 (has links)
Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.
10

Le désir érotique dans l’œuvre d’Alexandre Papadiamantis / The Erotic desire in the the Work of Alexandros Papadiamantis

Evzonas, Nicolas 14 January 2012 (has links)
Perçu pendant fort longtemps comme un saint anaphrodite et « castré » avant d’être reconnu comme l’écrivain le plus sensuel des Lettres grecques modernes, Alexandre Papadiamantis (1851-1911), auteur prolifique de près de cent quatre-vingt nouvelles et de trois romans et trésor national hellène, est un artiste antinomique qui ne cesse d’intriguer la critique et de susciter des débats contradictoires. Le présent travail propose une lecture de son œuvre complète axée sur un sujet controversé dont aucune étude systématique n’a été entreprise, malgré un siècle de surabondante critique littéraire : le désir érotique, que nous entendons essentiellement comme le rapport à un objet de convoitise explicitement ou implicitement désigné comme tel, humain ou inhumain, vivant ou inanimé, suscitant un certain nombre de réactions physiques et/ou psychiques et sollicitant un réseau complexe de sens, de sensations, de méditations, d’excitations et de significations représentées par le biais des mots. Une telle définition emphatise l’imbrication de la pulsion et du langage et distingue le désir de l’amour, ce dernier constituant plutôt une stase du désir, un arrêt et une fixation sur l’« autre ». Notre objectif est de comprendre comment l’érotisme ainsi défini s’exprime dans les textes, quels en sont les enjeux psychologiques, les interconnexions avec les techniques narratives, les choix stylistiques et les particularités linguistiques et quelles transformations littéraires il subit dans l’œuvre, en somme, quels sont sa destinée mythique, son aboutissement idéologique et son apothéose thématique, en somme son issue dans l’écriture. / Viewed for ages as an anaphrodite and « castrated » saint before being recognized as the most sensual writer in modern Greek literature, Alexandros Papadiamantis (1851-1911), prolific author of approximately one hundred and eighty short stories, and three historical novels, and deemed to be a Hellenic national treasure, is an antinomic artist who keeps intriguing critics and arousing open debates. The present thesis offers a reading of his complete work based on a controversial subject of which no systematic study has been undertaken before, despite a century of numerous literary comments : erotic desire, defined as the connexion with an objet of lust explicitely or implicitely defined as such, human or inhuman, alive or inanimated, and which rises a number of physical and/or psychological reactions, a complex network of meanings, sensations, meditations, actions and fantasies represented through words. This definition emphasizes the interweaving of drive and language and discerns between desire and love, the latter being rather a stasis of desire, and a fixation on the « other ». Our goal is to understand how eroticism thus defined is expressed throughout the texts, to point out the psychological issues associated with it, its interconnections with the narrative techniques, stylistic choices and linguistic particularities and the literary transformations it undergoes throughout the Papadiamantian opus, that is to say its mythic destiny, its ideological culmination and its thematic apotheosis, in short its outcome in writing.

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