Dissertation ETH Zürich, No. 15537, 2004. / Zusammenfassung in Englisch und Französisch.

Made available in DSpace on 2016-04-28T20:38:55Z (GMT). No. of bitstreams: 1 Rodrigo Otavio Fonseca.pdf: 1560842 bytes, checksum: e0d40ea21bb1df11f87252c0e82b5dd0 (MD5) Previous issue date: 2014-08-15 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / Psicose was always, for Freud, a fenomenom which symptoms were certainly proportional to the radicalism of the defense mechanisms which are busy with it. Among the possibilities of searching a metapsycological unterstanding, Freud thinks about a more primitive and radical mechanism than the repression, which could work decisively to cause psychosis. Considering an hallucinatory incident that was lived by Ergei Pankejeff, The Wolves Man, Freud calls this mechanism as rejection (Verwerfung). Without a systematic continuity of the research on psychosis, new heirs to the Master developed new ideas not only about psychosis but also about its psycological operation. That s what happened to the psychiatries Wilfred R. Bion and Jacques Lacan. Even if they are from different schools of thought and have different traditions, both consider the diversity of the psychotic categories (Bion with schizophrenia and Lacan with paranoia) to develop their systems of the psychoanalytic thought abou the theme. The originality and the diversity of their ideas make the authors have particular view points about the psychic mechanisms of psychosis; by the way, even withou a dialogue between them, some of their propositions can be considered very similar. The objective of this study is to consider mainly the concept of the defense mechanism called rejection (Verwerfung) e its connections between Wilfred Bion s and Jacques Lacan s thoughts abou their role on the constitution of the psychic system / A psicose sempre foi, aos olhos de Freud, um fenômeno cuja peculiaridade dos sintomas era certamente proporcional à radicalidade dos mecanimos de defesa nele envolvidos. Dentre as possibilidades de buscar um entendimento metapsicológico, Freud lança mão da idéia de um mecanismo mais primitivo e radical que o recalque, e que funcionaria de maneira decisiva no desencadeamento da psicose. A despeito de um episódio alucinatório vivido por Ergei Pankejeff, o Homem dos Lobos, Freud nomeia esse mecanismo de rejeição (Verwerfung). Sem uma continuidade mais sistemática nas investigações sobre as psicoses, novos herdeiros do Mestre desenvolveram novas idéias não só a respeito da psicose como também do seu funcionamento psíquico. Foi assim com os psiquiatras Wilfred R. Bion e Jacques Lacan. De Escolas e tradições psicanalíticas diferentes, ambos os autores partem da diversidade dos quadros psicóticos (Bion com as esquizofrenias e Lacan com as paranóias) para desenvolverem seus sistemas de pensamento psicanalítico sobre o tema. A originalidade e diversidade de suas idéias faz com que os autores busquem pontos de vista muito particulares acerca dos mecanimos psiquicos da psicose; entretanto, mesmo sem um dialógo entre eles, algumas de suas proposições podem ser consideradas bem semelhantes. O objetivo desse estudo parte principalmente do conceito do mecanismo de defesa chamado rejeição (Verwerfung) e dos seus entrelaçamentos com os pensametos de Wilfred Bion e Jacques Lacan sobre seu papel na constituição do aparelho psíquico

Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-07-05T19:08:43Z No. of bitstreams: 1 ViniciosBraga.pdf: 576032 bytes, checksum: 7f9a13e195f5e162977f6c1afb1bfde5 (MD5) / Made available in DSpace on 2017-07-05T19:08:43Z (GMT). No. of bitstreams: 1 ViniciosBraga.pdf: 576032 bytes, checksum: 7f9a13e195f5e162977f6c1afb1bfde5 (MD5) Previous issue date: 2016-07-27 / Every day we witness scenes of violence, intolerance and conflicts in different ways and intensities, whether on television, in the neighborhood or even inside our homes. Contemporary authors of Psychoanalysis has written about paranoid frames that can manifest even when there is no psychosis. Such frames are related to aggression that we see expressed in various ways. So, our main objective of this work show how you can be a paranoid framework in the absence of psychosis. To do so, we open the job discussing the notion of unconscious structured as a language, situating the field in which we are working and that the subject treated in the course of our exposition. Then, we used a presentation Verwerfung phenomenon to show that, although it is a mechanism usually linked to psychotic structure, is the base of own symbolic order of any speaker. We also demonstrated how the creation of an Ego is properly paranoid to have a rivalitary base that brings into play an aggressiveness (not always) latent, so that we could learn how it leaves marks that can lead a man to present typically paranoid traits, even if can not find a psychosis. This aggression is inherent in the human psyche and constitutes the extent that our Ego - imaginary function - is founded on such a basis where we first know ourselves into the other. Finally, we discuss about what is the paranoia and how manifest paranoid phenomena in order to contribute to a hearing in the clinic in addition to the closure of paranoid runs only in the field of psychosis. We were able to confirm that imaginary phenomena can not be taken alone as a criterion for the structure, and, therefore, we find situations in which paranoid manifestations occur even in the absence of psychosis. As a working method, we conducted literature search, which resorted to reading and rereading of Freud and Lacan, as well as authors who deal with the issue pertaining to the transmission line of these. With this, we aim to raise the concepts in question by promoting a dialogue between them to develop the question presented. The accuracy of the method in psychoanalysis is not in the accumulation of data, but to submit to the laws of language, in order not to us bogged in definitions closed in advance and be able to pay attention to the development of ideas as presented by the authors, as well as the progress the subject who writes. / Diariamente assistimos cenas de violência, intolerância e conflitos de diferentes modos e intensidades, seja na televisão, na vizinhança ou, ainda, dentro de nossas casas. Autores contemporâneos de Psicanálise tem escrito a respeito de quadros paranoicos que podem se manifestar mesmo quando não há psicose. Tais quadros estão relacionados à agressividade que vemos expressas nas mais diversas formas. Então, temos como principal objetivo deste trabalho apresentar como é possível haver um quadro paranoico na ausência de psicose. Para tanto, abrimos o trabalho discutindo a noção de inconsciente estruturado como linguagem, situando o campo em que estamos trabalhando e de que sujeito tratamos no decorrer de nossa exposição. Em seguida, lançamos mão de uma apresentação do fenômeno da Verwerfung para mostrar que, embora seja um mecanismo normalmente atrelado à estrutura psicótica, está à base do próprio ordenamento simbólico de qualquer falante. Demonstramos ainda como a constituição de um Eu é propriamente paranoica ao possuir uma base rivalitária que põe em jogo uma agressividade (nem sempre) latente, de modo que pudemos apreender como isso deixa marcas que podem levar um sujeito a apresentar traços tipicamente paranoicos, mesmo que não se possa constatar uma psicose. Essa agressividade é inerente ao próprio psiquismo humano e se constitui na medida em que nosso eu – função imaginária – é fundado sobre uma base tal onde nos apreendemos primeiramente no outro. Por fim, discorremos acerca do que é a paranoia e como se manifestam fenômenos paranoicos de modo a contribuir para uma escuta na clínica para além do encerramento dos funcionamentos paranoicos somente no campo da psicose. Pudemos confirmar que fenômenos imaginários não podem ser tomados isoladamente como critério para a estrutura, e, por isso mesmo, podemos encontrar situações em que manifestações paranoicas ocorrem mesmo na ausência de psicose. Como método de trabalho, realizamos pesquisa bibliográfica, em que recorremos a leituras e releituras de Freud e de Lacan, bem como de autores que versam sobre o tema que pertencem à linha de transmissão desses. Com isso, objetivamos levantar os conceitos em questão promovendo uma interlocução entre eles para desenvolver a questão apresentada. O rigor do método em Psicanálise não está no acúmulo de dados, mas em se submeter às leis da linguagem, a fim de não nos prendermos em definições fechadas a priori e podermos nos atentar ao desenvolvimento das ideias como apresentado pelos autores, bem como ao percurso do sujeito que escreve.

Diss. nat. sc. Zurich, 2003 ; ETH Nr. 15008. / Literaturverz.

Thesis (doctoral)--Technische Universität Carolo-Wilhelmina zu Braunschweig, 1983. / Summary also in English and Greek. Includes bibliographical references (p. 151-163).

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A presente dissertação de mestrado pretende abordar as vicissitudes do discurso do capitalista sobre o sujeito. Para tanto, toma como ponto de partida a afirmação de Lacan, em suas palestras em Saint-Anne sobre O saber do psicanalista, de que o que caracteriza o discurso do capitalista é a foraclusão da castração. A partir dessa colocação representada no matema do discurso do capitalista pelo desaparecimento da disjunção entre produto e verdade, bem como pela ausência de um vetor entre agente e Outro, o que demonstra que esse discurso não promove laço social , percorre-se algumas questões que reverberam sobre o sujeito, dentre as quais se destaca: se o sujeito não existe fora do laço social, que sorte de efeitos a ele resulta por freqüentar um discurso que se apresenta como dominante na contemporaneidade em que a castração está foracluída e, portanto, também o liame social? Tendo em vista que a Verwerfung é o que opera no discurso do capitalista, lança-se a hipótese de que a esquizofrenização no nível do discurso resulte na propagação do que Helene Deutsch convencionou chamar de como se. Esse fenômeno surgiria como uma suplência imaginária a que recorreria o sujeito como estabilização face aos efeitos decorrentes da foraclusão da castração no discurso do capitalista. Trata-se de um discurso psicotizante que, ao contrário dos quatro discursos apresentados por Lacan no seminário O avesso da psicanálise, não promove laço social. Se discurso é o que faz laço social e Freud, em 1930, anunciara que a principal fonte de sofrimento de que padece o homem é a relação com os demais, o mal-estar na civilização é o mal-estar dos laços sociais. Logo, os quatro discursos participam do mal-estar na civilização. Ao contrário destes, o discurso do capitalista, na tentativa de eliminar o mal-estar, foraclui o laço social. Por promover o gozo ao invés da renúncia à pulsão, o discurso do capitalista acaba por instigá-la. E, como toda pulsão é pulsão de morte, não é outra coisa senão o empuxo mortífero ao gozo que o discurso do capitalismo produz. A potência que o discurso do capitalista adquiriu na contemporaneidade é analisada a partir de sua íntima relação com o discurso da ciência. A partir de algumas colocações de Hannah Arendt acerca da banalidade do mal presente em um sistema totalitário como o nazista, cogita-se a hipótese de que a aliança entre os discursos do capitalista e da ciência resulte no surgimento de uma nova forma de totalitarismo: o totalitarismo de consumo. / This dissertation aims to address the vicissitudes of the discourse of the capitalist on the subject. For this purpose, it takes as a starting point Lacan statement in his lectures at Saint-Anne on The psychoanalysts knowledge, that what characterizes the discourse of the capitalist is the foreclosure of castration. From this statement - represented in the matheme of the discourse of the capitalist by the disappearance of the disjunction between product and truth, and by the absence of a vector between the agent and the Other, which shows that this discourse does not promote social bond - it traverses some issues that reverberate on the subject, among which stands out: if the subject does not exist apart from the social bond, what sort of effects does he suffer by following a discourse - which appears to be dominant in contemporary society - in which castration is foreclosed and, therefore, also the social bond? Since the Verwerfung is what functions in the discourse of the capitalist, there is the hypothesis that schizophrenizing at the level of the discourse could spread what Helene Deutsch conventionally called as if (als ob). This phenomenon emerges as an imaginary supplementation used by the subject to reach stabilization in view of the effects of castration foreclosure in the discourse of the capitalist. This is a psychosis-inducing discourse that, unlike the four discourses introduced by Lacan at the seminar Psychoanalysis Upside-Down, promotes no social bonding. If the discourse is what promotes social bond and Freud in 1930, announced that the main reason why men suffer is due to the relationship with others, the malaise in civilization is the malaise of social bonds. Thus, the four discourses participate in the malaise of civilization. Unlike these, the discourse of the capitalist, in an attempt to eliminate the malaise, forecloses the social bond. As it promotes enjoyment rather than the renunciation of drive, the discourse of the capitalist eventually instigate it. And, as every drive is a death drive, the discourse of the capitalist produces nothing but the deadly thrust to enjoyment. The power the discourse of the capitalist acquired in contemporary society is analyzed from its close relationship with the discourse of science. From some statements of Hannah Arendt on the banality of evil present in a totalitarian system, such as the Nazi, there is the hypothesis that the alliance between the discourses of the capitalist, and science results in the emergence of a new form of totalitarianism: the totalitarianism of consumption.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A presente dissertação de mestrado pretende abordar as vicissitudes do discurso do capitalista sobre o sujeito. Para tanto, toma como ponto de partida a afirmação de Lacan, em suas palestras em Saint-Anne sobre O saber do psicanalista, de que o que caracteriza o discurso do capitalista é a foraclusão da castração. A partir dessa colocação representada no matema do discurso do capitalista pelo desaparecimento da disjunção entre produto e verdade, bem como pela ausência de um vetor entre agente e Outro, o que demonstra que esse discurso não promove laço social , percorre-se algumas questões que reverberam sobre o sujeito, dentre as quais se destaca: se o sujeito não existe fora do laço social, que sorte de efeitos a ele resulta por freqüentar um discurso que se apresenta como dominante na contemporaneidade em que a castração está foracluída e, portanto, também o liame social? Tendo em vista que a Verwerfung é o que opera no discurso do capitalista, lança-se a hipótese de que a esquizofrenização no nível do discurso resulte na propagação do que Helene Deutsch convencionou chamar de como se. Esse fenômeno surgiria como uma suplência imaginária a que recorreria o sujeito como estabilização face aos efeitos decorrentes da foraclusão da castração no discurso do capitalista. Trata-se de um discurso psicotizante que, ao contrário dos quatro discursos apresentados por Lacan no seminário O avesso da psicanálise, não promove laço social. Se discurso é o que faz laço social e Freud, em 1930, anunciara que a principal fonte de sofrimento de que padece o homem é a relação com os demais, o mal-estar na civilização é o mal-estar dos laços sociais. Logo, os quatro discursos participam do mal-estar na civilização. Ao contrário destes, o discurso do capitalista, na tentativa de eliminar o mal-estar, foraclui o laço social. Por promover o gozo ao invés da renúncia à pulsão, o discurso do capitalista acaba por instigá-la. E, como toda pulsão é pulsão de morte, não é outra coisa senão o empuxo mortífero ao gozo que o discurso do capitalismo produz. A potência que o discurso do capitalista adquiriu na contemporaneidade é analisada a partir de sua íntima relação com o discurso da ciência. A partir de algumas colocações de Hannah Arendt acerca da banalidade do mal presente em um sistema totalitário como o nazista, cogita-se a hipótese de que a aliança entre os discursos do capitalista e da ciência resulte no surgimento de uma nova forma de totalitarismo: o totalitarismo de consumo. / This dissertation aims to address the vicissitudes of the discourse of the capitalist on the subject. For this purpose, it takes as a starting point Lacan statement in his lectures at Saint-Anne on The psychoanalysts knowledge, that what characterizes the discourse of the capitalist is the foreclosure of castration. From this statement - represented in the matheme of the discourse of the capitalist by the disappearance of the disjunction between product and truth, and by the absence of a vector between the agent and the Other, which shows that this discourse does not promote social bond - it traverses some issues that reverberate on the subject, among which stands out: if the subject does not exist apart from the social bond, what sort of effects does he suffer by following a discourse - which appears to be dominant in contemporary society - in which castration is foreclosed and, therefore, also the social bond? Since the Verwerfung is what functions in the discourse of the capitalist, there is the hypothesis that schizophrenizing at the level of the discourse could spread what Helene Deutsch conventionally called as if (als ob). This phenomenon emerges as an imaginary supplementation used by the subject to reach stabilization in view of the effects of castration foreclosure in the discourse of the capitalist. This is a psychosis-inducing discourse that, unlike the four discourses introduced by Lacan at the seminar Psychoanalysis Upside-Down, promotes no social bonding. If the discourse is what promotes social bond and Freud in 1930, announced that the main reason why men suffer is due to the relationship with others, the malaise in civilization is the malaise of social bonds. Thus, the four discourses participate in the malaise of civilization. Unlike these, the discourse of the capitalist, in an attempt to eliminate the malaise, forecloses the social bond. As it promotes enjoyment rather than the renunciation of drive, the discourse of the capitalist eventually instigate it. And, as every drive is a death drive, the discourse of the capitalist produces nothing but the deadly thrust to enjoyment. The power the discourse of the capitalist acquired in contemporary society is analyzed from its close relationship with the discourse of science. From some statements of Hannah Arendt on the banality of evil present in a totalitarian system, such as the Nazi, there is the hypothesis that the alliance between the discourses of the capitalist, and science results in the emergence of a new form of totalitarianism: the totalitarianism of consumption.

It has always been enigmatic which processes control the accretion of the North American terranes towards the Pacific plate and the landward migration of the San Andreas plate boundary. One of the theories suggests that the Pacific plate first cools and captures the uprising mantle in the slab window, and then it causes the accretion of the continental crustal blocks. The alternative theory attributes the accretion to the capture of Farallon plate fragments (microplates) stalled in the ceased Farallon-North America subduction zone. Quantitative judgement between these two end-member concepts requires a 3D thermomechanical numerical modeling. However, the software tool required for such modeling is not available at present in the geodynamic modeling community. The major aim of the presented work is comprised basically of two interconnected tasks. The first task is the development and testing of the research Finite Element code with sufficiently advanced facilities to perform the three-dimensional geological time scale simulations of lithospheric deformation. The second task consists in the application of the developed tool to the Neogene deformations of the crust and the mantle along the San Andreas Fault System in Central and northern California. The geological time scale modeling of lithospheric deformation poses numerous conceptual and implementation challenges for the software tools. Among them is the necessity to handle the brittle-ductile transition within the single computational domain, adequately represent the rock rheology in a broad range of temperatures and stresses, and resolve the extreme deformations of the free surface and internal boundaries. In the framework of this thesis the new Finite Element code (SLIM3D) has been successfully developed and tested. This code includes a coupled thermo-mechanical treatment of deformation processes and allows for an elasto-visco-plastic rheology with diffusion, dislocation and Peierls creep mechanisms and Mohr-Coulomb plasticity. The code incorporates an Arbitrary Lagrangian Eulerian formulation with free surface and Winkler boundary conditions. The modeling technique developed is used to study the aspects influencing the Neogene lithospheric deformation in central and northern California. The model setup is focused on the interaction between three major tectonic elements in the region: the North America plate, the Pacific plate and the Gorda plate, which join together near the Mendocino Triple Junction. Among the modeled effects is the influence of asthenosphere upwelling in the opening slab window on the overlying North American plate. The models also incorporate the captured microplate remnants in the fossil Farallon subduction zone, simplified subducting Gorda slab, and prominent crustal heterogeneity such as the Salinian block. The results show that heating of the mantle roots beneath the older fault zones and the transpression related to fault stepping, altogether, render cooling in the slab window alone incapable to explain eastward migration of the plate boundary. From the viewpoint of the thermomechanical modeling, the results confirm the geological concept, which assumes that a series of microplate capture events has been the primary reason of the inland migration of the San Andreas plate boundary over the recent 20 Ma. The remnants of the Farallon slab, stalled in the fossil subduction zone, create much stronger heterogeneity in the mantle than the cooling of the uprising asthenosphere, providing the more efficient and direct way for transferring the North American terranes to Pacific plate. The models demonstrate that a high effective friction coefficient on major faults fails to predict the distinct zones of strain localization in the brittle crust. The magnitude of friction coefficient inferred from the modeling is about 0.075, which is far less than typical values 0.6 – 0.8 obtained by variety of borehole stress measurements and laboratory data. Therefore, the model results presented in this thesis provide additional independent constrain which supports the “weak-fault” hypothesis in the long-term ongoing debate over the strength of major faults in the SAFS. / Seit jeher rätselhaft sind die Prozesse, die die Akkretion der Nordamerikanischen Terranen in Richtung der Pazifischen Platte sowie die Wanderung der Plattengrenze der San-Andreas-Verwerfung in Richtung Festland bestimmen. Eine Theorie besagt, dass sich die Pazifische Platte erst abkühlt und den aufsteigenden Mantel im „Slab Window“ fängt und somit die Akkretion der kontinentalen Krustenblöcke bewirkt. Die andere Theorie geht von einer Akkretion durch das Fangen von Teilen der Farallon-Platte (Mikroplatten) aus, die in der inaktiven nordamerikanischen Farallon-Subduktionszone fest stecken. Die quantitative Beurteilung dieser beiden gegensätzlichen Konzepte erfordert eine thermomechanische numerische 3-D-Modellierung. Das dafür benötigte Software Tool steht jedoch der geodynamischen Modellierung derzeit noch nicht zur Verfügung. Das Hauptziel der vorliegenden Arbeit umfasst im Wesentlichen zwei miteinander verbundene Aufgaben. Die erste besteht in der Entwicklung und Erprobung des Finite-Element-Codes, dessen Eigenschaften den hohen Anforderungen an die Ausführung der dreidimensionalen Simulationen lithosphärischer Deformation auf geologischer Zeitskala gerecht werden müssen. Die zweite Aufgabe ist die Anwendung des entwickelten Tools auf die neogenen Deformationen der Kruste und des Mantels entlang der San-Andreas-Verwerfung in Zentral- und Nordkalifornien. Die Modellierung auf geologischer Zeitskala lithosphärischer Deformation bringt für die Software Tools in Bezug auf Konzept und Durchführung zahlreiche Herausforderungen mit sich. Unter anderem gilt es, den Brittle-Ductile-Übergang in einem einzigen Modell sowie die Gesteinsrheologie in einer breiten Spanne unterschiedlicher Temperaturen und Spannungen adäquat darzustellen und die extremen Deformationen der freien Oberfläche und internen Grenzen aufzulösen. Im Rahmen der vorliegenden Arbeit erfolgte die erfolgreiche Entwicklung und Erprobung des neuen Finite-Element-Codes (SLIM3D). Dieser Code beinhaltet eine gekoppelte thermomechanische Behandlung von Deformationsprozessen und ermöglicht eine elasto-visko-plastische Rheologie mit Diffusion, Dislokation, Peierls Kriechmechanismen und Mohr-Coulomb-Plastizität. Der Code verbindet eine Arbitrary Lagrangian-Eulerian kinematische Formulierung mit freien Oberflächen- und Winkler-Randbedingungen. Das entwickelte Modellierungsverfahren wird für die Untersuchung der Aspekte verwendet, die die neogene lithosphärische Deformation in Zentral- und Nordkalifornien beeinflussen. Die Modellanordnung konzentriert sich auf die Interaktion zwischen drei großen tektonischen Elementen in dieser Region: die Nordamerikanische Platte, die Pazifische Platte sowie die Gorda-Platte, die sich in der Mendocino-Triple-Junction treffen. Unter anderem verdeutlicht die Modellierung den Einfluss des Aufsteigens der Asthenosphäre in das sich öffnende „slab window“ der übergelagerten Nordamerikanischen Platte. Die Modelle beziehen auch die angelagerten Überreste der Mikroplatten in der fossilen Farallon-Subduktionszone, die vereinfachte subduzierende Gorda-Platte sowie markante Heterogenitäten der Kruste, wie beispielsweise den „Salinian Block“, mit ein. Die Ergebnisse zeigen, dass die Erwärmung der Mantellithosphäre unter den älteren Störungszonen sowie die Transpression eine Abkühlung im „Slab Window“ als alleinige Begründung für die Ostwärtsbewegung der Plattengrenze nicht zulassen. Aus Sicht der thermomechanischen Modellierung bestätigen die Ergebnisse das geologische Konzept, welches durch das mehrmalige Fangen von Mikroplatten den Hauptgrund für die Wanderung der Plattengrenze der San-Andreas-Verwerfung in Richtung Festland über die letzten 20 Millionen Jahre sieht. Die Überreste der Farallon-Platte, die in der fossilen Subduktionszone gefangen sind, verursachen im Mantel eine wesentlich stärkere Heterogenität als die Abkühlung der Asthenosphäre und stellen somit den effizienteren und direkteren Weg für die Anlagerung der nordamerikanischen Gebiete an die Pazifische Platte dar. Die Modelle demonstrieren, dass ein hoher effektiver Reibungskoeffizient an großen Störungen nicht in der Lage ist, die eindeutigen Zonen der Dehnungslokalisierung in der spröden Kruste vorherzusagen. Die Größe des Reibungskoeffizienten, die sich aus der Modellierung ableitet, beträgt etwa 0,075 und ist damit wesentlich kleiner als die durch unterschiedliche Bohrlochmessungen und Labordaten ermittelten Spannungswerte zwischen 0,6 und 0,8. Daher liefern die in dieser Arbeit präsentierten Ergebnisse der Modelle in der seit langem geführten Debatte über die Stärke von großen Störungen in der San-Andreas-Verwerfung eine zusätzliche unabhängige Begründung der „Weak-Fault“-Hypothese.

This thesis presents new insights into Alpine Fault structures at the drill site of the Deep Fault Drilling Project (DFDP)-2B at Whataroa in New Zealand. Despite the challenging conditions for seismic imaging within a glacial valley filled with sediments and steeply dipping valley flanks, several structures related to the valley itself as well as the tectonic fault system are imaged. The Alpine Fault at the West Coast in New Zealand is a major plate boundary forming a significant geohazard as large earthquakes (magnitude 7-8) occur regularly and the next earthquake is expected relatively soon. A major effort has been made to study the fault characteristics through scientific drilling in the Deep Fault Drilling Project (DFDP) Alpine Fault with the deepest DFDP-2B borehole located in the Whataroa Valley. A great variety of seismic data are newly acquired. First, the WhataDUSIE (Whataroa Detailed University Seismic Imaging Experiment) data set is a ~5 km long 2D profile acquired in 2011 prior to the drilling. As the 2D profile could not fully explain the 3D structures in the Whataroa Valley, an extended surface and borehole data set was acquired in 2016 after the drilling. This data set consists of shorter 2D lines (< 3 km), a dense 3D-array, and vertical seismic profiling (VSP) using the DFDP-2B borehole including the fibre-optic cable. 3D seismic data proved to be essential to understand the complex 3D structures of the glacial valley and the major fault. First-arrival travel time tomography and prestack depth migration (PSDM) are applied to obtain a P-wave velocity model and seismic images of the subsurface (<5 km). In this complex setting, the Fresnel volume migration (a focusing PSDM method) proved to best obtain structural information about the subsurface. Analysing the results of the seismic data processing, two major outcomes are achieved: improved knowledge about the glacial structures of the Whataroa Valley and structural images of the Alpine Fault zone. The Whataroa Valley is an overdeepened glacial valley with details of the basement topography visible in the seismic images. A deep trough is identified south of the DFDP-2B borehole with horizontal layering of the sediments. Valley flanks are identified in both the seismic images and the P-wave velocity model, particularly the western valley flank. Thus, Quaternary and glacial processes can be analysed with the help of the newly derived seismic images. The Alpine Fault is directly imaged with the seismic data, which is the first time in this region at shallow depths (<5 km). Several shorter fault segments between depths of 0.2 km and 2.2 km dipping 40-56° to the southeast are directly imaged. Further identified reflectors and faults are interpreted to represent Alpine Fault structures in the form of a damage zone and induced faults adding further complexity to the fault zone. In conclusion, the 3D seismic results presented in this thesis provide new insights into the Whataroa subsurface. Hence, the new results form a good basis for a deeper understanding of the Alpine Fault structures and underlying processes which is important for potential future drilling but also for the estimation of the geohazard in the region.