Orientador: Graziela Estela Fonseca Rodrigues / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-21T10:14:16Z (GMT). No. of bitstreams: 2 Costa_ElisaMassariollida_M.pdf: 2444656 bytes, checksum: 46741614e0010602026fcecc9136f1ef (MD5) Costa_ElisaMassariolliDa_M_Anexo.zip: 792303022 bytes, checksum: f187d9f850cd6916b4c497b59e303d8d (MD5) Previous issue date: 2012 / Resumo: O objetivo desta pesquisa consistiu em aprofundar-se na fase do Método Bailarino- Pesquisador-Intérprete (BPI) que denominamos de Retorno ao Campo. Essa fase consiste em levar o espetáculo, resultante do processo ocorrido dentro do BPI, ao campo onde foi realizado o Co-habitar com a Fonte para a criação cênica, eixo do Método no qual o bailarino faz uma pesquisa de campo em alguma manifestação cultural ou nicho social brasileiro. A fase do Retorno ao Campo, neste projeto, deu-se por meio da realização de quatro apresentações do espetáculo "Nascedouro" em três diferentes aldeias da Terra Indígena de Pimentel Barbosa, de etnia Xavante, no Norte do Estado do Mato Grosso. "Nascedouro" é resultado de pesquisas de Iniciação Científica no Método BPI, enfocando a etnia Xavante, com a direção da profa. dra. Graziela Rodrigues e interpretação de Elisa Costa. Para a experiência de retornar "Nascedouro" à sua Fonte, intérprete e diretora estiveram nas terras xavante. Fazia parte dos objetivos buscar, por meio do Retorno ao Campo, abertura, comunicação e troca suficientes para proporcionar a intervenção dos pesquisados, gerando um processo de interação, o que, de fato, aconteceu. Após ocorrida a fase do Retorno ao Campo, houve novos laboratório dirigidos, para elaborar cenicamente as reverberações resultantes dessa interação, que resultou em uma performance e também em novas apresentações de "Nascedouro", incorporando os novos sentidos apurados do diálogo entre os Xavante e o espetáculo. Concluímos, após todo esse percurso, que o Retorno ao Campo, no Método BPI, gera identificação e espelhamento com os pesquisados, promove o desenvolvimento do intérprete e também o desenvolvimento do espetáculo, proporcionando inclusive a criação de novos produtos cênicos. Concluímos, também, que uma relação de sintonia e confiança entre diretor e intérprete é essencial para que os processos no Método BPI sejam bem sucedidos / Abstract: The aim of this research has been to plunge into the stage of the Bailarino-Pesquisador- Intérprete Method (BPI, that means, in english, Dance-Research-Performer) which we have named Return to the Field. This very stage consists of taking the performance, which is the result of the process that occurred inside the BPI Method, back to the field where the Cohabiting with the Source for the scenic creation took place. This is a Method in which the performer's object of research is their focus on either a given cultural manifestation or on a certain stratum of the brazilian culture. The stage of the Return to the Field, in this very project, was based upon four presentations of the performance "Nascedouro", which took place in three different indigenous villages in the so-called "Terra Indígena de Pimentel Barbosa" belonging to the ethnic group of the Xavante and situated in the north of Mato Grosso State. "Nascedouro" is the result of the research of the undergraduate on the DRP Method and focus on the ethnic group of the Xavante. With the direction of the Professor Graziela Rodrigues and the performance of Elisa Costa. As for the experience of returning "Nascedouro" to its Source, both performer and director have been to the land of the Xavante people. It was part of the objectives to seek through the Return to the Field, openness, communication and exchange enough to generate a situation in which the objects of the research would interact with the spectacle and which happened in fact. After the Return to the Field stage, there were other directed creation labs that aimed at better elaborating the scenic results of this project, which resulted in a performance as well as in new presentations of "Nascedouro". Therefore, we have concluded that the Return to the Field, in the BPI Method generates identification together with the objects of the research, thus promoting the perfomer's development as well as the performance's development. It can also provide the creation of new scenic products. We have also concluded that being in tune and trusting one another are the essencial elements to the director-performer relationship, so that the processes of the BPI Method's successful / Mestrado / Artes da Cena / Mestra em Artes da Cena

This study focuses on and tries to identify areas where machine translation can be useful by examining translated fictional and non-fictional texts, and the extent to which these different text types are better or worse suited for machine translation.  It additionally evaluates the performance of the free online translation tool Google Translate (GT). The BLEU automatic evaluation metric for machine translation was used for this study, giving a score of 27.75 BLEU value for fictional texts and 32.16 for the non-fictional texts. The non-fictional texts are samples of law documents, (commercial) company reports, social science texts (religion, welfare, astronomy) and medicine. These texts were selected because of their degree of difficulty. The non-fictional sentences are longer than those of the fictional texts and in this regard MT systems have struggled. In spite of having longer sentences, the non-fictional texts got a higher BLUE score than the fictional ones. It is speculated that one reason for the higher score of non-fictional texts might be that more specific terminology is used in these texts, leaving less room for subjective interpretation than for the fictional texts. There are other levels of meaning at work in the fictional texts that the human translator needs to capture.

This report describes a basic implementation of scene voxelization within the Frostbite engine created by EA Frostbite. The algorithm supports dynamic scenes by voxelizing in real-time using the Graphical Programming Unit. The voxel grid is stored inside a buffer with a binary representation using clip mapping and multiple levels of detail. An ambient occlusion algorithm is implemented to show the benefits of the structure. Results from running the application within the engine is presented, both with figures showing the resulting image and timings for diifferent parts of the algorithm. Several future improvements to make the algorithm more competitive is presented as well.

Context: Software testing is expensive, labor intensive and consumes lot of time in a software development life cycle. There was always a need in software testing to decrease the testing time. This also resulted to focus on Automated Software Testing (AST), because using automated testing, with specific tools, this effort can be dramatically reduced and the costs related with testing can decrease [11]. Manual Testing (MT) requires lot of effort and hard work, if we measure in terms of person per month [11]. Automated Software testing helps to decrease the work load by giving some testing tasks to the computers. Computer systems are cheap, they are faster and don‘t get bored and can work continuously in the weekends. Due to this advantage many researches are working towards the Automation of software testing, which can help to complete the task in less testing time [10]. Objectives: The main aims of this thesis is to 1.) To systematically classify contributions within AST. 2.) To identify the different benefits and challenges of AST. 3.) To identify the whether the reported benefits and challenges found in the literature are prevalent in industry. Methods: To fulfill our aims and objectives, we used Systematic mapping research methodology to systematically classify contributions within AST. We also used SLR to identify the different benefits and challenges of AST. Finally, we performed web based survey to validate the finding of SLR. Results: After performing Systematic mapping, the main aspects within AST include purpose of automation, levels of testing, Technology used, different types of research types used and frequency of AST studies over the time. From Systematic literature review, we found the benefits and challenges of AST. The benefits of AST include higher product quality, less testing time, reliability, increase in confidence, reusability, less human effort, reduction of cost and increase in fault detection. The challenges include failure to achieve expected goals, difficulty in maintenance of test automation, Test automation needs more time to mature, false expectations and lack of skilled people for test automation tools. From web survey, it is observed that almost all the benefits and challenges are prevalent in industry. The benefits such as fault detection and confidence are in contrary to the results of SLR. The challenge about the appropriate test automation strategy has 24 % disagreement from the respondents and 30% uncertainty. The reason is that the automation strategy is totally dependent on the test manager of the project. When asked “Does automated software testing fully replace manual testing”, 80% disagree with this challenge. Conclusion: The classification of the AST studies using systematic mapping gives an overview of the work done in the area of AST and also helps to find research coverage in the area of AST. These results can be used by researchers to use the gaps found in the mapping studies to carry on future work. The results of SLR and web survey clearly show that the practitioners clearly realize the benefits and challenges of AST reported in the literature. / Mobile no: +46723069909

Les Cévennes sont depuis des siècles connues pour être des « terres de miel ». L'apiculture y est caractérisée par lo brusc, une ruche traditionnelle construite avec un tronc de châtaignier évidé, couvert d'une lauze de schiste. Les ruchers-troncs constituent une forme d'apiculture très ancienne et rustique, qui a contribué à l'histoire de l'occupation humaine et à la dynamique des paysages en Cévennes. Les ruches étaient à l'origine exclusivement sédentaires et peuplées d'abeilles noires (Apis mellifera mellifera), présentes en Cévennes bien avant l'arrivée des humains. Aujourd'hui, l'apiculture cévenole se fait principalement en ruches à cadres. Les pratiques apicoles actuelles — achat d'abeilles, transhumance, sélection, etc.— ont conduit à la diminution des populations de sous-espèces d'abeilles locales et à leur homogénéisation génétique. Afin de mieux connaître et de préserver ce patrimoine apicole naturel et culturel exceptionnel, le Parc national des Cévennes a initié cette étude pluridisciplinaire à travers le financement d'une thèse CIFRE. Ce travail est composé de trois parties.(I) L'objet de la première partie est l'habitat, la ruche. Les documents d'archives permettent d'affirmer que les ruches-troncs sont apparues en Cévennes à la fin du Moyen Âge, puis se sont développées et maintenues jusqu'à la première moitié du XXe siècle. Le passage de la ruche-tronc à la ruche à cadres moderne s'est réalisé progressivement au cours du siècle dernier. Les témoignages des anciens Cévenols ont permis d'appréhender les pratiques, les savoirs et les savoir-faire associés à ces ruchers traditionnels. Enfin, le micro-environnement des ruchers a été caractérisé grâce à des analyses spatiales qui viennent corroborer le discours local sur l'emplacement idéal d'un rucher.(II) L'abeille noire est au cœur de la deuxième partie. De l'abeille commune à l'abeille « noire agressive », les considérations du milieu apicole sur l'abeille locale ont évolué au cours du siècle écoulé. Un état des lieux de la population d'abeilles a été réalisé en utilisant la morphométrie géométrique, puis l'ADN mitochondrial. La morphométrie permet de dire que les 2/3 de la population d'abeilles des Causses et des Cévennes sont constitués d'abeilles noires. L'étude de l'ADN mitochondrial nous alerte néanmoins sur le taux élevé d'introgression dans ces populations. Cette introgression touche autant les populations d'abeilles élevées en ruches à cadres que celles maintenues en ruches-troncs. Ces populations ne se démarquent pas génétiquement l'une de l'autre.(III) La dernière partie de ce travail concerne la conservation du patrimoine apicole par l'établissement public du Parc national des Cévennes. Elle détaille les moyens et actions passés, présents, ainsi que les difficultés et les perspectives de conservation pour la ruche-tronc et l'abeille noire en contexte d'aire protégée. Cette partie met en exergue l'impérieuse nécessité d'une concertation multi-acteurs, axée sur une intégration de plusieurs types de savoirs — local, scientifique, d'expert — qui tienne compte des changements sociaux, économiques et écologiques auxquels la région des Cévennes est soumise. / For several centuries, the Cévennes region in Southern France has been renowned as a “land of honey”. Beekeeping in Cévennes is characterized by lo brusc, a traditional hive that is made of a hollowed chestnuts log which is covered with a schistous stone slab called “lauze”. Log hive apiaries are a very old and rustic form of beekeeping, which was a major driver of human occupation history and landscape dynamics throughout the Cévennes. From their origins, log hives were home most exclusively to black bees (Apis mellifera mellifera) that were settled in the region far before the rise of humankind. Nowadays, beekeeping in Cévennes is mainly carried out in frame hives. Current beekeeping practices — purchase of bees, transhumance, queen selection… — have led to a drastic decrease in populations of local bee subspecies, and to their genetic homogenization. In order to better understand and preserve this remarkable natural and cultural beekeeping heritage, the Cévennes National Park implemented a multidisciplinary study, through the funding of a CIFRE (Industrial contract for training through research) doctoral research.1- The first part of the study is dedicated to the hive. Archive documents strongly support the assertion that the very first log hives that were established in Cévennes date back to the end of the Middle Age. Afterwards they expanded and were maintained until the middle of the 20th century. The shift from log hive to frame hive occurred progressively throughout the past century. Testimonies by old Cévennes inhabitants helped assessing local practices, knowledge and know-how related to these traditional apiaries. Furthermore, spatial analyses were undertaken to characterize the micro-environment surrounding apiaries. These analyses corroborate local discourses about where an apiary should ideally be set up.2- The black bee is the epicenter of the second part of the study. From the common bee to the “black and aggressive” bee, views by the beekeeping community concerning the local bee in Cévennes have evolved over the past century. Genetic analyses using geometrical morphometry and mitochondrial DNA were successively implemented to establish a state of the art of local bee populations. Morphometric data tell us that nearly 2/3rd of the bee populations of Causses and Cévennes are composed of black bees. However, mitochondrial DNA data alert us on the high level of introgression within these populations. Such introgression equally affects bees kept in frame hives and those kept in log hives.3- The third part of the study addresses the sensitive issue of a conservation strategy of local beekeeping patrimony that is carried out by the public development agency of the Cévennes National Park. Past conservationist resources and actions are described and so are the perspectives and obstacles to a valuable conservation strategy of black bees and log hives in a context of protected area. In conclusion, the study advocates for an indispensable multi-stakeholder conciliation and a necessary integration of several types of knowledge — local ecological knowledge, knowledge from learned experts, scientific knowledge — that takes into consideration the social, economical and ecological changes affecting the overall Cévennes region.

The aim of this study is to contribute to ongoing studies on the Acts of the Apostles, particularly in the area of the manner in which the NT writer quotes and interprets the OT. Many scholars have studied the use of the OT in the NT, though few have investigated the explicit quotations in Acts. The discussion confines itself to an examination of the nine explicit quotations in Stephen’s speech of Acts 7 which are identified with introductory formulae, i.e.: (7:3 from Gn 12:1; 7:6-7 from Gn 15:13-14; 7:27-28 from Ex 2:14; 7:33-34 from Ex 3:5, 7-8, 10; 7:35 from Ex 2:14; 7:37 from Dt 18:15; 7:40 from Ex 32:1, 23; 7:42-43 from Am 5:25-27; and 7:49-50 from Is 66:1-2). The study first seeks to situate the quoted texts in their original context, after which attention is paid to their appearance in Stephen’s discourse in Acts. Specific attention is given to the question of the presence of a possible independent Lukan Textvorlage which might underlie these quotations. To this end, firstly an overview of the differences between the pertinent OT textual traditions (e.g., MT, LXX, etc), and the NT is provided. This clearly establishes the nature of the changes and modifications present in Luke’s reading of his original material. Secondly and finally, the discussion seeks to provide an assessment of Luke’s theological and hermeneutical framework, reflected within the OT quotations of Stephen’s defense. Through the method referred to above, best depicted as consisting of text-historical, methodological and hermeneutical aspects (Steyn 1995:31-37), this study makes the following observations: Firstly, most of the explicit quotations in Ac 7 are not found anywhere else in the NT, except for the book of Acts. Only the 8th quotation from Am 5:25-27 in Ac 7:42-43 occurs in CD 7:14-15, but the quotation from CD differs from the meaning of the original context. It seems clear that these quotations are attributable to Luke himself via his LXX version - although it is possible that Luke might have used either the LXX or the MT in a few places. Secondly, when Luke relates the quoted texts from his LXX version of the OT to his new hearers, most of the changes that Luke made are likely to be expected within the change in context between that of Luke and the original source of the quotation. That is, the grammatical and stylistic changes were made by Luke, although the possibility of the changes being due to his Vorlage, should not altogether be excluded. Luke’s cautious theological and hermeneutical intention is also to be detected in Stephen’s speech. However, it is true that the original meaning is not significantly altered by these changes. At last, it may be assumed that Luke is the author of the changes to these quotations. Thirdly and finally, Luke’s theological intentions for applying the quotations are revealed as follows: God as the subject of the history has been constantly at work for his people. However, his people repetitively reject God’s servants and go against God’s words given through them. The climax of this pattern is found in the killing of Jesus and Stephen (Ac 7:52, 60). Nonetheless, God continues to be working to accomplish his salvific plan for his people, regardless of the hostile attitude of the Israelites toward God himself as well as his messengers. At last, it results in his salvific activity (endless love) ‘to the ends of the earth’ (Ac 1:8), viz., even to the Gentiles through his numerous witnesses again. This study comprises of seven chapters according to the flow of the narrative, which are designed as follows: the Abraham Story (chapter 2); the Joseph Story (chapter 3); the Moses Story (chapter 4); the Temple (chapter 5); Stephen’s Indictment (chapter 6). In addition, chapter 1 presents the introduction, and chapter 7 describes the synthesis and conclusion. / Thesis (PhD (New Testament Studies))--University of Pretoria, 2007. / New Testament Studies / PhD / unrestricted

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The aim of this thesis was to examine changing representations of men and masculinities in a particular historical period (“The Sixties”) and to explore the impact that this had in a period of rapid social change in the UK and the legacy of that impact. In order to do this, a multi-method study was developed, combining documentary research with a set of eleven semi-structured interviews. The documentary research took the form of a case study of The Beatles, arguing that their position as a group of men who became a global cultural phenomenon, in the period under study, made theme a suitable vehicle through which to read changing representations of masculinities in this period and to reflect on what this meant for men in UK society. The Beatles’ live action films were chosen as a sample of Beatle “texts” which allowed for the Beatles to be looked at at different points in the “The Sixties” and for possible changes over that time period to be tracked. Textual analysis within discourse analysis (based on a framework suggested by van Dijk [1993], Fairclough [1995] and McKee [2003]) was used to analyse the texts. Ideas advanced by the Popular Memory Group (1982) about the interaction of public representations of the past and private memory of that past were influential in the decision to combine this piece of documentary research with interviews with a sample of men, in an age range of 18 to 74. The interview stage was designed to elicit data on the perception of the participants of the role of representation (with particular reference to the Beatles) of masculinities on them as individuals and their ideas about how this may have had an impact in terms of longer term social change. Ehrenreich’s (1983) notion of a male revolt in the late 1950s, an emergence of a challenge to established ideas about men and masculinity, was also influential, particularly as it is an idea at odds with the “crisis in masculinity” discourse (Tolson, 1977; Kimmel, 1987; Whitehead, 2002) at work in a number of texts on men and masculinity. Examining further Inglis’ (2000b : 1) concept of The Beatles as “men of ideas” with a global reach, the chosen Beatle texts were examined for discourses of masculinity which appeared to be resistant to the dominant. What emerged were a number of findings around resistance, non-conformity, feminised appearance, pre-metrosexuality, the male star as object of desire and The Beatles as a global male phenomenon open to the radical diversity of the world in a period of rapid social change. The role of popular culture within this process was central to the thesis, given its focus on The Beatles as a case study. However, broader ideas about the role of the arts also emerged with a resultant conclusion that “the sixties” is where a recognition of the importance of representation begins as well as a period where representations of gender (as well as class and race) became more accessible due to the rise in popularity of TV in the UK and a resurgence in British cinema. The thesis offers a number of ideas for further research, building on the outcomes of this particular study. These include further work on the competing crisis/ revolt discourse at work in the field of critical men’s studies, ascertaining female perspectives on representations of masculinities and their impact, further work on the Beatles through fans and an application of some of the ideas at work in the thesis to other periods of British history.

Requirements are a key aspect of software development. Requirements are also related with other software artefacts including designs, test cases and documentation. These artefacts are often captured with specialized models. However, many tools lack support for traceability relationships between requirements artefacts and model artefacts, leading to analysis issues. To establish traceability between models and other types of requirements artefacts, this thesis proposes a new Domain-Specific Language (DSL) for describing the concepts of a modeling language that would be intended to be traced using a Requirements Management System (RMS), with tool support handling the evolution of models and of their traceability links. In the first part of this thesis, the syntax and metamodel of the Model Traceability DSL (MT-DSL) are defined, together with an editor implemented using Xtext. In the second part of the thesis, a library of import and maintenance functions is generated automatically (using Xtend) from model traceability descriptions written using MT-DSL. The target language for this library is the DOORS eXtension Language (DXL), the scripting language of a leading commercial RMS with traceability support, namely IBM Rational DOORS. The implementation has been tested successfully for importing and evolution scenarios with two different modeling languages (User Requirements Notation and Finite State Machines). This work hence contributes a reliable mechanism to define and support traceability between requirements and models.

Orientadores: Roberto Perez Xavier, Antônio João Paes de Barros / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências / Made available in DSpace on 2018-08-18T19:24:22Z (GMT). No. of bitstreams: 1 Assis_RafaelRodriguesde_M.pdf: 63971305 bytes, checksum: 10519618069ab0467e9938bc90213f76 (MD5) Previous issue date: 2011 / Resumo: A Província Aurífera de Alta Floresta, porção centro-sul do Craton Amazônico, localiza-se entre os limites das províncias geocronológicas Ventuari - Tapajós (1,95-1,8 Ga) e Rio Negro - Juruena (1,8-1,55 Ga). Corresponde a uma unidade tectônica essencialmente composta por sequências plutono-vulcânicas geradas em ambiente de arcos magmáticos que se desenvolveram e se agregaram progressivamente no Paleoproterozóico. No segmento leste da província, na região que compreende os municípios de Nova Santa Helena - Peixoto de Azevedo - Guarantã do Norte - Novo Mundo (MT), rochas plutônicas e vulcânicas são as hospedeiras de mais de uma centena de depósitos auríferos que ocorrem concentrados ao longo do Cinturão Peru-Trairão, de direção NW-SW. Inseridos neste contexto, estão os depósitos Pé Quente e Francisco, alvos de estudo deste trabalho. O Depósito Pé Quente hospeda-se na suíte homônima, que compreende quartzo monzodiorito-monzodiorito a leucomonzonito, isotrópicos, inequigranulares a equigranulares. Apatita, rutilo e zircão correspondem às fases acessórias comuns na suíte. Nos arredores do depósito são individualizadas uma série de manifestações plutônicas mais tardias, não cogenéticas a Suíte Pé Quente, de composição eminentemente granítica e com biotita, hornblenda, titanita, apatita e magnetita como fases acessórias. Diques de vulcânicas são comuns na região e truncam todas as suítes supracitadas. A Suíte Pé Quente exibe afinidade geoquímica com as séries cálcio-alcalinas de médio K, metaa peraluminosas e magnesianas, semelhante aos granitos orogênicos do tipo I, enquanto que as demais suítes são cálcio-alcalinas de médio a alto K, metaluminosas e magnesianas, mas ligeiramente ferrosas. No geral, as observações petrográficas e geoquímicas indicam que essas suítes plutônicas correspondem a granitos do tipo I que teriam se originado em ambiente de arcos vulcânicos evoluindo para arcabouço pós-colisional. A Suíte Pé Quente foi submetida a expressivos estágios de alteração hidrotermal, a destacar: (i) forte alteração sódica com albita; (ii) alteração potássica com ortoclásio + microclínio; (iii) alteração sericítica; (iv) carbonatação; (v) alteração pervasiva a venular com muscovita grossa fibro-radial; (vi) silicificação com brechas e veios com textura do tipo pente subordinadas; (vii) alteração sódica fissural com quartzo + albita e; (viii) alteração propilítica mais tardia e regional. O minério no Deposto Pé Quente é representado pela paragênese pirita + barita ± hematita ± calcopirita ± galena, associada tanto à alteração sódica pervasiva mais precoce quanto à fissural (quartzo + albita). O ouro é mais frequente na alteração pervasiva, na qual ocorre incluso na pirita e exibe concentrações em Ag que variam de 14,2 a 46,3%. Estudos preliminares de inclusões fluidas na zona de minério disseminado indicam fluidos eminentemente aquo-carbônicos em coexistência com fluidos aquosos bifásicos. Os principais atributos geológicos do Depósito Pé Quente correspondem: (i) íntima associação com rochas originadas em arcabouço de arcos vulcânicos (granitos tipo I); (ii) alteração hidrotermal extensa e zonada, com oscilações nas aNa+, aK+, aH+ and aCa2+; (iii) minério que representa fluidos de natureza oxidada. Neste sentido, o Depósito Pé Quente reflete um sistema com múltiplos pulsos de fluidos hidrotermais possivelmente relacionados a estágios de desgaseificação da câmara magmática em um contínuo gradativo de rebaixamento da temperatura. A precipitação do minério aurífero teria ocorrido mediante imiscibilidade de fluidos em um sistema magmático-hidrotermal a elevadas temperaturas e ¿O2, típicos das raízes de sistemas auríferos do tipo pórfiro. O contexto geológico do Depósito do Francisco, no entanto, é distinto daquele observado no Depósito Pé Quente. A região de União do Norte, onde se localiza o Depósito do Francisco, é constituída por uma Unidade Vulcanoclástica epiclástica que aloja uma série de intrusões graníticas paleoproterozóicas. Essa unidade vulcanoclástica é composta por arenito arcoseano, arenito arcoseano lítico, grauvaca-feldspática e lentes de conglomerado polimítico matriz suportada, todos vulcanoclásticos. Esses sedimentos teriam sido provenientes da dissecação de antigos edifícios vulcânicos de composição intermediária e depositados em uma bacia de retroarco, próxima à área fonte. As suítes intrusivas são temporalmente representadas por plútons de (i) granodiorito com tonalito e quartzo monzodiorito subordinados; (ii) sieno-monzogranito e; (iii) pelo Pórfiro União do Norte, uma manifestação sub-vulcânica que consiste de álcali-feldspato granito porfirítico a monzogranito porfirítico. As duas primeiras suítes são cogenéticas e correlacionáveis à Suíte Intrusiva Matupá (1.872 ±12Ma), enquanto que o granito sub-vulcânico estaria relacionado as manifestações graníticas pós-colisionais do tipo A da Suíte Intrusiva Teles Pires (1.782 ±17 Ma a 1.757 ±16 Ma). Truncando todas essas unidades ocorrem diques de vulcânicas de composição traquibasáltica a dacítica. A litogeoquímica do Pórfiro União do Norte indica magmatismo eminentemente alcalino de alto potássico, ferroso e meta- a peraluminoso, enquanto que os diques de vulcânicas e as demais suítes plutônicas exibem afinididades geoquímicas com as séries cálcio-alcalinas de alto K, metaluminosas, magnesianas a ligeiramente ferrosas. Evidências de campo em conjunto com os dados litogeoquímicos ainda apontam para uma evolução do magmatismo com geração de rochas mais primitivas em ambiente de arcos vulcânicos (granodiorito; Suíte Intrusiva Matupá) até o alojamento de corpos altamente evoluídos (Pórfiro União do Norte; Suíte Intrusiva Teles Pires) em contexto pós-colisional. Todas essas unidades são ainda recobertas pelos sedimentos arenáceos da Formação Dardanelos, com idade máxima de deposição entre 1.987 ±4 Ma a 1.377 ±13 Ma. Na região de União do Norte desponta o Depósito do Francisco, o primeiro depósito epitermal polimetálico de intermediária sulfetação da Província Aurífera de Alta Floresta, e ao qual o ouro está associado a elevadas concentrações de metais de base (Zn+Pb±Cu). As zonas mineralizadas são representadas pela associação pirita + esfalerita + galena + hematita ± calcopirita ± magnetita ± digenita. O minério ocorre hospedado na Unidade Vulcanoclástica em veios com intensa silicificação e extenso halo de alteração sericítica. As alterações potássica, argílica e propilítica são as mais distais ao minério, sendo que as duas primeiras ocorrem intimamente associadas ao Pórfiro União do Norte. Estudos premilimares de inclusões fluidas realizados nas zonas mineralizadas indicam regime de fluidos eminentemente aquosos, com inclusões aquosas primárias que exibem heterogeneidade no grau de preenchimento pela fase de vapor (10-70%). Os principais atributos geológicos do depósito do Francisco podem ser considerados: (i) alteração hidrotermal e minério íntimamente associados a um granito sub-vulcânico (Pórfiro União do Norte) que teria se saturado em uma fase aquosa residual decorrente de sua cristalização; (ii) alunita, embora em pequenas concentrações, associadas a ocorrênicas de silica cap; (iii) minério hospedado em rochas sedimentares epiclásticas; (iv) zonas mineralizadas que frequentemente exibem texturas indicativas da percolação de fluidos em nível crustal raso; (v) minério aurífero associado tanto a elevadas concentrações de metais de base quanto de prata; (vi) paragênese do minério dominada por fases ricas em sulfetos, o que indica oscilações no estado de sulfetação do enxofre. Todas essas características são similares àquelas encontradas em depósitos epitermais polimetálicos de intermediária sulfetação. Devido à presença constante de texturas que tipificam a percolação de fluidos em nível crustal raso nas regiões internas, proximais e de contato do Pórfiro União do Norte, além da existência de apófises sub-vulcânicas intensamente sericitizadas e/ou silicificadas, é proposto que esta suíte tenha correspondido ao evento termal causativo da mineralização aurífera associada a metais de base do Depósito do Francisco. Desta forma, sugere-se que a Suíte Intrusiva Teles Pires, até o momento conhecida por ser estéril a ouro, possa ter potencial, mesmo que restrito às suas ocorrências sub-vulcânicas, para hospedar mineralizações auríferas com metais de base associados. Em adicional, o contexto pós-colisional em que o depósito se formou teria promovido a sua preservação quanto aos agentes erosivos, metamórficos e de deformação que posteriormente poderiam ter afetado e destruído o depósito. Neste contexto, a deposição do ouro no Depósito do Francisco ocorreu mediante aumento das condições de ¿O2 do fluido (precipitação de hematita) decorrente da entrada de fluidos externos e oxidantes (meteóricos), potencializada por eventos de fraturamento hidráulico quando o granito sub-vulcânico se saturou em uma fase fluida residual (expansão adiabática seguida de ebulição). As elevadas concentrações de metais de base aliadas ao processo de ebulição ainda sugerem que variações na temperatura e pH foram importantes na precipitação do minério. Neste cenário, as suítes plutônicas individualizadas neste trabalho começaram a ser geradas em um momento anterior ao magmatismo da Suíte Intrusiva Matupá (1.872 ±12Ma), com a colocação da Suíte Pé Quente. Com a continuidade do envento magmático, suítes graníticas mais evoluídas foram sendo geradas, até o alojamento da Suíte Intrusiva Teles Pires (~ 1.757 Ma), que representa a colocação de intrusões mais tardias (Pórfiro União do Norte), em plataforma continental pós-colisional (granito tipo A). A depender do modelo geotectônico adotado, o conjunto dessas suítes, portanto, teria sido criado durante a instalação dos arcos magmáticos Cuiú-Cuiú (2,1-1,9 Ga) e Juruena (1,8-1,75 Ga), ou então, no decorrer do Arco Magmático Ventuari-Tapajós (1,95 e 1,8 Ga). As informações aqui reunidas indicam que os depósitos estudados podem ser enquadrados em distintos sistemas mineralizados no modelo geral dos depósitos do tipo ouro pórfiro - epitermal, no qual a colocação de intrusões paleoproterozóicas teria correspondido às fontes geradoras de calor, fluidos e metais necessários para a instalação de um sistema magmático-hidrotermal. O Depósito Pé Quente corresponderia a um sistema de maior profundidade e temperatura, no qual a forte alteração sódica com albita, com fluidos oxidados eminentemente aquosos e aquo-carbônicos representariam as zonas mais profundas de depósitos auríferos do tipo pórfiro. Em contraste, o Depósito do Francisco seria correlato às mineralizações de níveis crustais mais raros, com grande aporte de fluidos meteóricos, e relativamente distais de intrusivas félsicas. Deste modo, as mineralizações auríferas com metais de base associados seriam equivalentes aos depósitos epitermais polimetálicos de intermediária sulfetação. / Abstract: The Alta Floresta Gold Province, eastern portion of the Amazon Craton, extends between the Ventuari - Tapajós (1.95 to 1.8 Ga) and Rio Negro - Juruena (1.8 to 1.55 Ga) geochronological provinces. This provinces represents a tectonic unit composed primarily of plutono-volcanic sequences generated in continental arc settings during the Paleoproterozoic. At the easternmost segment of the province, in region that comprises the districts of Nova Santa Helena - Peixoto de Azevedo - Guarantã do Norte - Novo Mundo (MT), a significant number of gold deposits are distributed along a NW-SW striking belt (Peru - Trairão belt). Within this belt, the Pé Quente and Francisco gold deposits, currently exploited by local prospectors (garimpeiros), are the main case studies of this work. The Pé Quente deposit is hosted by the Pé Quente Suite that consists of quartz-monzodiorite to leucomonzonite with apatite, rutile and zircon as accessory phases. Several other later granitic intrusions occur in the vicinity of the deposit, but geological relationships and geochemical data suggest neither genetic nor temporal links to the Pé Quente Suite. These suites are mainly granitic composition and have biotite, hornblende, titanite, apatite and magnetite as accessory phases. Volcanic dikes are often in the area and crosscut all these plutonic suites. The Pé Quente suite exhibits geochemistry affinities to the medium-K, calc-alkaline, meta- to peraluminous and magnesian granitic series, thus similar to the I-type orogenic granites, whereas the other suites are medium to high-K, metaluminous and magnesian, but slightly ferroan. Additionally, petrographic and geochemical data indicate that these rocks correspond to I-type granitic series that probably had been generated in a volcanic arc setting that have also evolved to a post-collisional one. The Pé Quente Suite has been affected by the following hydrothermal alteration types (temporal sequence): (i) strong sodic alteration with albite; (ii) potassic alteration with orthoclase and microcline; (iii) sericitic alteration; (iv) carbonate alteration represented by calcite; (v) pervasive to venular coarse muscovite alteration; (vi) silicification with breccias and comb-texture quartz veins; (vii) fissural sodic alteration that consists of quartz + albite and; (viii) later and regional propylitic alteration. The ore zones comprise pyrite + barite ± hematite ± chalcopyrite ± galena that are related to both earlier sodic alteration and later veins with quartz and albite. Gold generally occurs as small inclusions within pyrite and shows Ag concentrations that range from 14.2 to 46.3%. Preliminary studies of fluid inclusions within the disseminated ore-zones indicate carbonic fluids that coexisting with aqueous biphasic. The main geological feautures of this deposit are: (i) close association with rocks that have been originated in the onset of volcanic arcs (granite type I), (ii) widespread and zoned hydrothermal alteration, with oscillations in aNa+, aK+, aH+ and aCa2 +; (iii) ore that represents oxidized fluids. Therefore, the Pé Quente deposit is interpreted to have been formed from multiple pulses of hydrotermal fluids, possibly generated by episodes of magma degassing. The ore precipitation might have taken place by fluid immiscibility within a high-temperature and high-¿O2 system, similar to those related to root zones of porphyry systems. Very dissimilar from the Pé Quente gold deposit, the Francisco gold deposit, in the União do Norte region, is hosted by an epiclastic volcaniclastic unit that is crosscut by a series of Paleoproterozoic granitic intrusions. This unit contains mainly feldspathic-arenite and feldspathic-wake, besides lenses of matrix-supported conglomerate, both volcaniclastics. The sediments that compose the rocks of this unit have possibly derived from the erosion of old volcanic centers of intermediate composition in a active continental setting. Furthermore, the sediments might have been deposited in a retroarc basin, near to the source-area. The intrusive suites are sequentially represented by: (i) granodiorite with tonalite and quartz-monzodiorite subordinate; (ii) sieno- to monzogranite and; (iii) União do Norte Porphyry, a subvolcanic manifestation that comprises porphyritic alkali-feldspar granite and porphyritic monzogranite. The firt two suites are tentatively correlated with the Matupá Intrusive Suite (1.872 ±12Ma), whereas the porphyry could be related to the post-collisional A-type granitic rocks from the Teles Pires Intrusive Suite (1.782 ±17 Ma to 1.757 ±16 Ma). Mafic to felsic volcanic dikes that consist of trachybasalt, basaltic-trachyandesite, andesite and dacite crosscut both the volcaniclastic unit and the granitic suites. Litogeochemical data from the União do Norte Porphyry indicate that this suite represents an alkaline, high-K, magnesian to ferroan, meta- to slightly peraluminous magmatism, whereas the volcanic dikes and the two other plutonic suites exhibit geochemical affinities with to the calc-alkaline, high-K, metaluminous and magnesian to slightly ferroan series. Additionally, field and geochemical data indicate that the granitic suites represent a magmatic series that were probably formed in the onset of a volcanic arc setting, manly with granodioritic rocks (Matupá Intrusive Suite), which evolved to the emplacement of highly-evolved granitic rocks, such as the União do Norte Porphyry (Teles Pires Intrusive Suite) in a postcollisional setting. All these units are still overlain by arenaceous sediments of the Dardanelos Formation (1.987 ±4Ma to 1.377 ±13Ma). In this geological setting, the Francisco deposit represents the first intermediate-sulfidation epithermal gold mineralization associated with base metals (Zn+ Pb±Cu) in the Alta Floresta Gold Province. Pyrite + sphalerite + galena + chalcopyrite ± hematite ± magnetite ± digenite represent the ore zones, hosted at the Volcanilcasto unit. The ore occurs in veins with strong silicification and extensive sericitic halo. The potassic (ortoclase ± hematite ± quartz ± biotite), argillic (kaolinite + sericite + quartz ± hematite), propilitic (chlorite + epidote + magnetite ± actinolite ±calcite ± apatite ± pyrite ± chalcopyrite ± quartz ± shalerite ± margarite) alterations, plus the late-hematite veins, correspond to the distal hydrothermal alterations to the ore zone. The potassic and argililic alterations generally are closely associated to the União do Norte Porphyry. Preliminary studies of fluid inclusions within the ore zones indicate the presence of an aqueous fluid system represented by primary aqueous inclusions with heterogeneity in the vapor-phase filling degree (10-70%). The main geological feautures of the deposit are: (i) hydrothermal alteration and ore closely associated with a subvolcanic granite (União do Norte Porphyry) that could have saturated in an residual aqueous fluid phase due to its crystallization; (ii) alunite, although in small concentrations, associated to the occurrences of silica cap; (iii) ore zones hosted in epiclastic sedimentary rocks; (iv) ore zones that often exhibit textures that indicate fluid percolation at shallow crustal level; (v) gold ore associated either to high concentration of base metals and silver; (vi) ore paragenesis dominated by phases rich in sulfides that are indicative of oscillations in the sulfidation state of the sulfur. All these feautures are similar to those found in epithermal polymetallic deposits of intermediate sulfidation. Due to the constant presence of textures that typify the percolation of fluids in shallow crustal level in the inner, proximal and contact regions of the Porphyry North Union, besides the existence of subvolcanic apophyses strongly sericitized and/or silicified, it is proposed that this suite has been responsible by the causative thermal event of gold mineralization associated with base metals at the Francisco deposit. Therefore, it is suggested that the Teles Pires Intrusive Suite, so far known to be barren of gold mineralizations, may have potencial, even if restricted to occurrences of the subvolcanic from this suite, to host gold mineralizations with associated base metals. In addition, the post-collisional setting in which the deposit have been formed would have promoted its preservation from the later erosion, metamorphism and deformation events, which could have affected and destroyed the deposit. The ore precipitation might have taken place by increase in the ¿O2 of the fluid (hematite precipitation), possibly due to influx of oxidizing external fluids (meteoric) after hydraulic fracturing events when the subvolcanic granite had been oversaturated in a residual aqueous fluid phase. The high concentrations of base metals suggest that the variations on the temperature and pH of the fluid could have been an important key in the formation of the mineralized ore zones. In this context, the identified plutonic suites around the Pé Quente and Francisco would have been initially formed before the magmatic event that resulted in the Matupá Intrusive Suite (1.872 ±12Ma), with the emplacement of the Pé Quente suite. With the continuity of the magmatic event, more evolved granitic suites would have been created by the emplacement of the Teles Pires Intrusive Suite (~ 1757 Ma), which represents the later intrusions (União do Norte Porphyry) within a post-collisional setting. Therefore, depending on the tectonic model adopted, all of these suites would have been created during the installation of the magmatic arc Cuiú-Cuiú (2.1-1.9 Ga) and Juruena (1.8-1.75 Ga), or then, during the Ventuari-Tapajós Magmatic Arc (1.95 to 1.8 Ga). In this scenario, the Pé Quente and Francisco deposits could be classified as different mineralizing systems within the general model of gold-porphyry - epithermal, which the emplacement of Paleoproterozoic granitic intrusions may have served as source of heat, fluids and metals to the installation of the magmatic-hydrothermal system. The Pé Quente deposit, for instance, could correspond a system of greater depth and higher temperature, where the strong pervasive albite alteration plus highly oxidized-aqueous and carbonic fluids represent the root zones of porphyry gold deposits. The Francisco deposit, however, could be correlated to mineralization nested in shallow crustal levels with great influx of meteoric fluids and relatively distal from felsic intrusive subvolcanic granite. Therefore, the Francisco deposit could be similar to the polymetallic epithermal deposits of intermediate-sulfidation. / Mestrado / Metalogenese / Mestre em Geociências