31 |
Fracture reactivation and gold mineralization in the epithermal environment : structural evolution of the Endeavour 42 gold deposit, New South Wales, AustraliaHenry, Amber Dawn 11 1900 (has links)
The development of an open pit mine at the Endeavour 42 (E42) epithermal gold deposit, situated in the Junee-Narromine Volcanic Belt of the Ordovician Macquarie Arc, central New South Wales, has provided a 3D view of the structurally controlled deposit which was hitherto not available due to the paucity of outcrop in the region. Outcropping geological relationships present a complicated history of overprinting structural deformation and vein events, including the spatial characterization of the gold-mineralizing system. Host rocks consisting of interbedded sedimentary and resedimented volcaniclastic facies, trachyandesite and porphyritic andesite lavas and intrusions (coherent and autoclastic facies), intruded by a large diorite sill, were initially tilted and faulted, followed by the emplacement of multiple dyke phases along faults. Economic gold mineralization at E42 is restricted to faults, fault-hosted breccias, and veins, and was deposited over a period spanning two distinct structural regimes. Early gold-bearing veins are steeply dipping and interpreted as forming coevally along two sets of faults and dykes within a tensional stress regime. High grade fault-hosted, hydrothermally cemented breccia intervals are included temporally with early gold-bearing veins based on comparable mineralogy and steep, fault parallel orientations. Crosscutting the early steep gold-bearing vein sets are two populations of coeval inclined gold-bearing veins, dipping moderately to the southwest and northwest, respectively, which formed in a compressional stress regime with tension directed subvertically. The E42 epithermal deposit likely developed in the period of overall crustal extension, ca. 443-433 Ma, following Phase 1 of the Late Ordovician – Early Silurian Benambran Orogeny.
The generation of permeability, styles of fracture propagation, and the reactivation of pre-existing planes of weakness in the rock package are key factors in the development and current geometry of the E42 gold deposit. High grade veins and faults are commonly flanked by sericite-quartz ± carbonate alteration haloes, which exhibit consistent geochemical patterns for metals and pathfinder elements, both laterally away from structures, and vertically within the deposit. Au, Ag, As, Hg, Sb, Tl, Cu, Pb, and Zn, all display increasing concentrations towards high-grade structures, as well as higher up in the epithermal system, with varying dispersion haloes.
|
32 |
Fracture reactivation and gold mineralization in the epithermal environment : structural evolution of the Endeavour 42 gold deposit, New South Wales, AustraliaHenry, Amber Dawn 11 1900 (has links)
The development of an open pit mine at the Endeavour 42 (E42) epithermal gold deposit, situated in the Junee-Narromine Volcanic Belt of the Ordovician Macquarie Arc, central New South Wales, has provided a 3D view of the structurally controlled deposit which was hitherto not available due to the paucity of outcrop in the region. Outcropping geological relationships present a complicated history of overprinting structural deformation and vein events, including the spatial characterization of the gold-mineralizing system. Host rocks consisting of interbedded sedimentary and resedimented volcaniclastic facies, trachyandesite and porphyritic andesite lavas and intrusions (coherent and autoclastic facies), intruded by a large diorite sill, were initially tilted and faulted, followed by the emplacement of multiple dyke phases along faults. Economic gold mineralization at E42 is restricted to faults, fault-hosted breccias, and veins, and was deposited over a period spanning two distinct structural regimes. Early gold-bearing veins are steeply dipping and interpreted as forming coevally along two sets of faults and dykes within a tensional stress regime. High grade fault-hosted, hydrothermally cemented breccia intervals are included temporally with early gold-bearing veins based on comparable mineralogy and steep, fault parallel orientations. Crosscutting the early steep gold-bearing vein sets are two populations of coeval inclined gold-bearing veins, dipping moderately to the southwest and northwest, respectively, which formed in a compressional stress regime with tension directed subvertically. The E42 epithermal deposit likely developed in the period of overall crustal extension, ca. 443-433 Ma, following Phase 1 of the Late Ordovician – Early Silurian Benambran Orogeny.
The generation of permeability, styles of fracture propagation, and the reactivation of pre-existing planes of weakness in the rock package are key factors in the development and current geometry of the E42 gold deposit. High grade veins and faults are commonly flanked by sericite-quartz ± carbonate alteration haloes, which exhibit consistent geochemical patterns for metals and pathfinder elements, both laterally away from structures, and vertically within the deposit. Au, Ag, As, Hg, Sb, Tl, Cu, Pb, and Zn, all display increasing concentrations towards high-grade structures, as well as higher up in the epithermal system, with varying dispersion haloes.
|
33 |
Etude du comportement mécanique des multi-matériaux soumis à un impact balistique : approches expérimentale et numérique / Study of the mechanical behaviour of multi-materials submitted to a ballistic impact : experimental and numerical approachesGilson, Lionel 12 December 2017 (has links)
Le travail de la thèse porte sur une étude globale des interactions qui surgissent sur le système projectile/protection/cible lors d’un impact balistique non perforant. L’objectif principal consiste à l’analyse et à l’évaluation des modes d’endommagement des projectiles et des protections d’une part, et les déformations occasionnées sur la cible, d’autre part. Une étude expérimentale a permis la caractérisation mécanique des différents matériaux utilisés à savoir : la gélatine, la plastiline, ainsi que l’analyse des réponses balistiques utilisant des protections en composite, en aluminium et textiles. L’accent a été mis sur la recherche des lois de comportement appropriées pour les différents composants du système balistique utilisant des multi-matériaux. Une simulation numérique du thorax humain a été développée, exploitée et validée sur la base d’un impact non pénétrant. La simulation numérique a été réalisée en prenant en compte à la fois le thorax et les différents organes du corps humain en intégrant aussi la présence de protections. / This work deals with interactions occurring on the projectile/protection/target system during a non-perforating ballistic impact. The first main goal concerns the analysis and evaluation of the processes’ damage projectiles and protections. The second one concerns the deformation of the target. An experimental study has allowed the mechanical characterisation of different used materials: the gelatine, the plastilina, and the analysis of the ballistic response of the composite, aluminium and textile based-protections. The research carried out here is focused on the appropriate material laws of different components of the ballistic system implicating the multi-materials. A numerical simulation of the human thorax has been developed, implemented and validated thanks to a non-penetrating ballistic impact. The numerical simulation has been realised by taking into account of both the thorax and the different organs of the human body protected by a ballistic protection.
|
34 |
The metaphor of the family in John 4:1-42.Moruthane, Sepadi W.D 09 January 2008 (has links)
The motivation of my research is the massive problem of physical and sexual abuse of women and children we experience in South Africa. This is unacceptable for a society like ours where the rights of every citizen are entrenched in the constitution. Therefore, I have focused on the metaphor of the family in the Fourth Gospel, and how they are employed at micro-, meso- or macro-level. J.G. van der Watt’s book, Family of the King. Dynamics of Metaphor in the Gospel of John (2000) forms the basis of my study. He has pointed out that the metaphor of the family is the constitutive and most essential imagery in the Gospel. The story of the Samaritan woman in John 4 fits somehow into the family history of the father and the son. The questions I am concerned with are: 'How does Jesus' encounter with the Samaritan woman in John 4 fit into the network of imagery of the family in John's Gospel? What other imageries related to the imagery of the family, are also functioning in the story of the Samaritan woman and what significance does this encounter have in relation with the rest of the Gospel? In chapter 1 the research premise is worked out. Elements featuring in this chapter are: the problem statement, general and specific objectives, aim of the study, motivation and methodology. Literary criticism, social-scientific criticism, rhetorical criticism and theological criticism together are used into an integrated and approach to interpret this pericope. When they are used interactively, a rich and responsible approach is available for dealing with belief, action and life in the world today. In Chapter 2 the social-historical background of the Jewish and Roman family is discussed. Aspects like the meaning of family, family functions in the Jewish household and family and community solidarity were taking into consideration. The important role of cleanness and uncleanness in the Jewish family and the way they considered Samaritans as ‘menstuants from the cradle’ are underlined. Because John 4 is about the encounter between Jesus and a Samaritan woman, the origin of the Samaritans; their beliefs and traditions; and divorce in their community are important. The Samaritan education system; cleanness and uncleanness in their community and the place of a woman in the Samaritan family were also included in the discussion. At the end of this particular section the similarities and differences of the Jewish and Roman families were compared to be able to reconstruct and to obtain as much information as possible of the context of the Samaritan family. Chapter 3 contains the discussion of the meaning and function of metaphors in general and specific in the Gospel of John. In this study I have looked at the definition of a metaphor, types of metaphors and imagery in the Fourth Gospel. John emphasizes in his gospel the divinity of Jesus and his relationship with God. The author is using human relational images to portray this relationship as well as Jesus, the divine’s relationship to the world and to other people. In the words of Van den Heever: ‘The metaphors in John are all embedded in contexts made up by other metaphorical expressions: descent/ascent, living in you/you in me, partaking of Me as food, walking in the light, etcetera. It means that the connoted micro-level metaphors must be understood macro-metaphorically.’ (1992:94). This forms the basis of the discussion of the metaphor of the family in John 4. Chapter 4 is the focal point of the research and contains a detailed exegesis of John 4:1-42 in order to explain the functioning of the metaphor of the family on micro-level. The other metaphors that are linked with the metaphor of the family are also discussed, e.g. the metaphor of water and the significance of water in the Fourth Gospel as well as the metaphors of light and life. Because a family is about relationships, the family metaphors in John’s Gospel are about various relationships. It is in the first place about Jesus’ relationship with his Father, with the disciples and with the believers. In John 4 two other family relationships are portrayed: the Samaritan family and the Jewish family and they are in conflict with each other. Therefore, Jesus invites the Samaritan woman into a new family, namely the family of the Father. In this family she will have a special place and function. Other aspects of the Samaritan woman's relationships are also explored, e.g. her relationship with men, with the disciples and with men in the village. Jesus as a human being was also part of a family. The Gospel writers hesitated to say too much about it, but eventually we do know something about his family relationships. In the last chapter of my research families in South Africa are discussed. How the Fourth Gospel and particularly the story of the encounter between Jesus and the Samaritan woman can help to build families in South Africa that respects women; a society that gives women their rightful places in that society. / Dr. S.J. Nortje-Meyer
|
35 |
Fracture reactivation and gold mineralization in the epithermal environment : structural evolution of the Endeavour 42 gold deposit, New South Wales, AustraliaHenry, Amber Dawn 11 1900 (has links)
The development of an open pit mine at the Endeavour 42 (E42) epithermal gold deposit, situated in the Junee-Narromine Volcanic Belt of the Ordovician Macquarie Arc, central New South Wales, has provided a 3D view of the structurally controlled deposit which was hitherto not available due to the paucity of outcrop in the region. Outcropping geological relationships present a complicated history of overprinting structural deformation and vein events, including the spatial characterization of the gold-mineralizing system. Host rocks consisting of interbedded sedimentary and resedimented volcaniclastic facies, trachyandesite and porphyritic andesite lavas and intrusions (coherent and autoclastic facies), intruded by a large diorite sill, were initially tilted and faulted, followed by the emplacement of multiple dyke phases along faults. Economic gold mineralization at E42 is restricted to faults, fault-hosted breccias, and veins, and was deposited over a period spanning two distinct structural regimes. Early gold-bearing veins are steeply dipping and interpreted as forming coevally along two sets of faults and dykes within a tensional stress regime. High grade fault-hosted, hydrothermally cemented breccia intervals are included temporally with early gold-bearing veins based on comparable mineralogy and steep, fault parallel orientations. Crosscutting the early steep gold-bearing vein sets are two populations of coeval inclined gold-bearing veins, dipping moderately to the southwest and northwest, respectively, which formed in a compressional stress regime with tension directed subvertically. The E42 epithermal deposit likely developed in the period of overall crustal extension, ca. 443-433 Ma, following Phase 1 of the Late Ordovician – Early Silurian Benambran Orogeny.
The generation of permeability, styles of fracture propagation, and the reactivation of pre-existing planes of weakness in the rock package are key factors in the development and current geometry of the E42 gold deposit. High grade veins and faults are commonly flanked by sericite-quartz ± carbonate alteration haloes, which exhibit consistent geochemical patterns for metals and pathfinder elements, both laterally away from structures, and vertically within the deposit. Au, Ag, As, Hg, Sb, Tl, Cu, Pb, and Zn, all display increasing concentrations towards high-grade structures, as well as higher up in the epithermal system, with varying dispersion haloes. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate
|
36 |
Breathing space : cross-community professional theatre as a means of dissolving fixed geographical landscapesMatchett, Sara January 2005 (has links)
In this paper, I investigate the idea of cross-community professional theatre as a means of dissolving fixed georgraphical landscapes. Key to this is the synergy between mainstream and community theatre, out of which this idea emerges. I explore how theatre facilitates conversations across differences. 'Differences' encompass questions of geographical, class and racial divides as well as the ideological differences between mainstream and community theatre. Cross-community professional theatre involves working with people from different communities around specific issues. Professional actors work alongside non-professional actors from communities to create a piece of theatre. Community members are involved in the process as well as in the performance. Cross-community refers not only to the exchange between professional actors and non-professional actors, but also to the idea of theatre providing a framework for conversations between different communities.
|
37 |
Jindřich Chalupecký a avantgarda. Mytologizující rysy Chalupeckého koncepce moderního umění ve vztahu k hnutím avantgardy / Jindřich Chalupecký a avantgarda. Mythologizing features od Chaloupecky modern art conception in relation to avant-garde movementsČervinka, Jonáš January 2012 (has links)
The aim of the diploma thesis is to introduce the conception of art produced by major Czech art-critic Jindřich Chalupecký in relation to the movement of historical avant-garde and later manifestations of the neo-avant-garde. The thesis discusses Chalupecký within a broader contemporary context, and uses comparative method to illustrate the complexity of Chalupecký's thought together with the concept of new mythology he shared with some of his contemporaries. The thesis consists of three parts which freely correspond to the sequential progression of Chalupecký's thought and his conception of the avant-garde. The thesis stresses the originality of Chalupecký's approach to modern art, and considers its colorful manifestations.
|
38 |
Nádraží - průnik tématu městské krajiny utvářené průmyslovou revolucí do české malby 30. a 40. let 20. století / The Railway Station - Czech Post-war Painting Focused on Urban LandscapePALUŠOVÁ, Mária January 2019 (has links)
This diploma thesis called The Railway Station - The Introduction of the Theme of Urban Landscape Shaped by the Industrial Revolution in Czech Painting of 1930s and 1940s is divided into two parts, theoretical and practical. The theoretical part deals with the czech painting of the thirties and fourties mainly. The painting of this period reacts on the development of the cities after the industrial revolution and the change of the stands. The new situation was reflected by the artists originally. The theoretical part is focused on Group 42 and its members mainly. The artists and their pieces of work show the issues of the progress. Both parts, practical part mainly, put the emphasis on the phenomenon of the railway station. The railway station is connected with the development of the cities and it serves for the transport of people and goods. There is the outlining of the problem of artistically captured everyday reality of man living in the city in this thesis, there is the differentation of abstract and concrete imaging and its interconnection. The practical part contains photos, sketches and final painting. The railway station is depicted in the painting. The problem of reality and abstract and concrete imaging are expressed in the painting.
|
39 |
Diskurs lyriky a modely reprezentace subjektu v poezii Skupiny 42 / Lyrical Discourse and Representations of Subject in the Works of Group 42LENCOVÁ, Pavla January 2011 (has links)
This diploma thesis is focused on exploring the forms of representing the lyric subject in the poetry of authors in Group 42 with a special focus on the forms of depicting the existential status in the text. Prior to the analysis of forms of representation of the lyric subject in the poetry of Group 42, attention will firstly be drawn to the changes of lyrical discourse in the 40's and 50's of the 20th century. Further on the ways of representation of the subject will be examined as well as the ways of depicting reality in the works of the authors of Group 42. At the end of this thesis, based on previous analysis, attention will be drawn to in what ways are principles of existential imagination depicted in the space of a lyrical piece of work.
|
40 |
Nádraží česká poválečná malba se zaměřením na městskou krajinu / The Railway Station - Czech Post-war Painting Focused on Urban LandscapePALUŠOVÁ, Mária January 2018 (has links)
This diploma thesis called The Railway Station - Czech Post-war Painting Focused on Urban Landscape is divided into two parts, theoretical and practical. The theoretical part deals with czech post - war painting. Post war painting reacts on the development of the cities after the industrial revolution and the change of the stands. The new situation is reflected by the artists originally. The theoretical part is focused on Group 42 and its members mainly. The artists and their pieces of work show the problems of the progress. Both parts put the emphasis on the phenomenon of the railway station. The railway station is connected with the development of the cities and it serves for the transport of people and goods. There is the problem of the reality, abstract and concrete imaging in this thesis. The practical part contains photos, rough drawings and one painting. The railway station is depicted in the painting. The problem of reality and abstract and concrete imaging are expressed in the painting.
|
Page generated in 0.0281 seconds