Tesi sul tema "Sedimentary"
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Tavares, Sandra Aparecida Simionato 1969. "Fósseis do afloramento Santa Irene, cretácio superior da Bacia Bauru = inferências paleoecológicas". [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287322.
Testo completoDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências
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Resumo: O Afloramento Santa Irene tem sido considerado um dos mais significativos da Bacia Bauru, na Formação Adamantina, pela abundancia e boa conservação de fósseis associados ali encontrados, como dentes isolados de arcossauros carnívoros associados a fósseis de um dinossauro saurópode herbívoro. Os fósseis foram coletados nos anos de 1997 e 1998, na área rural do Município de Monte Alto - SP, e hoje compõem parte do acervo do Museu de Paleontologia de Monte Alto. Os dentes isolados de tal afloramento são o principal material de estudo deste trabalho, que, acrescidos a outros dados obtidos através da análise das feições bioestratinômicas e geológicas da região, permitiram tecer uma interpretação paleoecológica para o Afloramento Santa Irene. Foram analisados vinte e seis exemplares de dentes de arcossauros carnívoros, sendo dezoito deles enquadrados como Theropoda e oito como elementos dentários pertencentes aos Crocodyliformes. Os dentes de Theropoda se distinguem daqueles de Crocodyliformes por serem os primeiros mais achatados lateralmente, além de apresentarem serrilhas. Foi possível constatar que quatorze dos dezoito exemplares classificados dentro da Subordem Theropoda apresentam características pertencentes à Ceratosauria, família Abelisauridae, e Maniraptora, família Dromaeosauridae. A coleção de dentes de Crocodyliformes coletados no afloramento Santa Irene consiste de oito exemplares em geral cônicos, com estriamento ao longo da carena, podendo ou não apresentar bordos serrilhados e seção basal arredondada, sendo possível classificá-los dentro da família Trematochampsidae. Os fósseis articulados e com pouco desgaste do Aeolosaurus indicam um soterramento parcial logo após a morte ou ainda na fase de destruição de seus elementos não esqueléticos. A observação do afloramento e do seu entorno permitiu deduzir que a região apresentava rios, possivelmente, entrelaçados com deposição sazonal de sedimentos e períodos de estabilidade com a formação de solos incipientes. Durante os períodos interdeposicionais e de formação do solo, nota-se a ocorrência da precipitação de minerais, dando origem à formação de calcretes, resultado de períodos secos marcantes. O afloramento Santa Irene representa a deposição de rios que formavam barras arenosas, nas quais diversos grupos de animais buscavam água e alimento. Conclui-se que estes animais habitavam ou transitavam por aquele ambiente, pois não há sinais de que os fósseis tenham sido transportados até o local no qual foram coletados, mas sim que a carcaça do Aeolosaurus serviu de alimentação para outros animais no local de sua morte. Desta forma, o material analisado permitiu a reconstituição de um retrato impar de um ecossistema a muito extinto
Abstract: The Santa Irene outcrop has been considered one of the most significant of the Bauru Basin, in the Adamantina formation, because of abundance and good preservation of associated fossils found there, as isolated teeth of carnivorous archosaurs associated with fossils of a herbivorous sauropod dinosaur. The fossils were found in 1997 and 1998, in rural areas of the city of Monte Alto - SP, and today compose the collection of the Museum of Paleontology of Monte Alto. The isolated teeth from this outcrop is the main material of this paper, which, together with other data obtained by analysis of biostratonomic and geological features of the region, allowed to make a paleoecological interpretation of the outcrop Santa Irene. Twenty-six copies of teeth of carnivorous archosaurs were analyzed, eighteen of them being classified as Theropodomorpho and eight teeth as belonging to Crocodyliformes. The teeth of Theropodomorpho can be distinguished from those to be the first Crocodyliformes as they are more flattened laterally, besides having serrations. It was found that fourteen of the eighteen specimens classified within the suborder Theropoda fit the characteristics belonging to Ceratosauria, family Abelisauridae and Maniraptora, family Dromaeosauridae. The collection of Crocodyliformes teeth collected from the outcrop Santa Irene consists of eight copies generally conical, with streaking along the keel, presenting or not serrated edges and rounded basal section, being possible to classify them within the family Trematochampsidae. The articulated and with little wear fossils of Aeolosaurus indicate a burial soon after death or during the destruction of its non-skeletal elements. The observation of the outcrop and its surroundings allow deducing that the region had braided rivers with seasonal sediment deposition and periods of stability with the formation of incipient soils. During no deposicional intervals periods and soil formation, can be noted the occurrence of precipitation of minerals, giving rise to the formation of calcrete, result of striking dry periods. The outcrop of St. Irene was formed by rivers that formed sand bars, in which various groups of animals tried to find food and water. It can be deduced that these animals lived or transited through that environment, because there is no evidence that the fossils were transported to the location in which they were collected, but that the Aeolosaurus remains served as food for other animals at his death location. Thus, the analyzed material allowed the reconstitution of an unique portrait of an ecosystem to long extinct
Mestrado
Geologia e Recursos Naturais
Mestre em Geociências
Souza, Agda Eunice de [UNESP]. "Argilominerais: influência dos aditivos (cinza de bagaço de cana-de-acúcar e rocha sedimentar) no processo de sinterização". Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/88494.
Testo completoFoi estudada a influência de cinza de bagaço de cana e rocha sedimentar, adicionadas a um material argiloso, durante o processo de sinterização. O material argiloso e os aditivos foram caracterizados utilizando Difratometria de Raio X, Espectrometria de flurescência de Raio X e Análise Térmica. As amostras de cinza e rocha foram moídas, peneiradas a 0,088 mm e 0,125 mm, respectivamente, e incorporadas nos teores de 0, 20, 40, 60 e 80% em massa ao material argiloso. Foram preparados corpos de prova, prensados uniaxialmente a 19 Mpa, para cada corpo de prova, em uma prensa manual. As peças foram sinterizadas nas temperaturas de 500, 800, 900, 1000, 1100 e 1200º C, usando um forno tipo mufla e, posteriormente, submetidos a análise difratométrica e a ensaios físicos e mecânicos de absorção de água, retração linear de queima, massa específica aparente, perda de massa ao fogo, porosidade aparente e módulo de ruptura à flexão. A difratometria de raios X mostrou que a cinza é composta de material cristalino, predominantemente quartzo; a rocha sedimentar apresentou, além de quartzo, argilominerais micáceos e o material argiloso teve como fase principal a caulinita, contendo ainda hidróxido de alumínio e óxidos de ferro em menores concentrações. A análise química mostrou que, além do silício, a cinza e a rocha sedimentar apresentaram concentrações de óxidos de alumínio, potássio, cálcio, ferro e magnésio, enquanto que no material, os óxidos de silício, alumínio, ferro e titânio foram predominantes. As análises térmicas das diferentes misturas mostraram algumas reações que indicam transformação (inversão do quartzo), decomposição (perda de hidróxidos) e formação de fase (mulita) durante o aquecimento das amostras. Difração de raios X sustentou as hipóteses levantadas nos termograms das amostras...
The influence of sugar cane bagasse ash and sedimentary rock, added to clay material, in the sintering process was studied. The clay material and the additives were characterized by X-ray diffraction, X-ray spectroscopy and thermal analysis. The ash and rock samples were triturated, sieved to 0.088 mm and 0.125 mm, respectively, and incorporated at 0, 20, 40, 60, and 80% in the clay material. Prismatic probes were prepared, each pressed at 19 Mpa in a manual press. The pieces were sintered at 500, 800, 900, 1000, 1100 ans 1200ºC, and then characterized by X-ray diffraction and tests for water absorption, linear shrinkage, apparent specific mass, loss on ignition, apparent porosity and flexural strength. X-ray diffraction showed that the ash was composed of crystalline material, predominantly quartz; the sedimentary rock contained, besides quartz, mica; and the main phase of the clay material was kaolinite, but also contained aluminum hydroxide and iron oxides in lower concentrations. Chemical analysis showed that, besides silicon, the ash and the sedimentary rock also contained concentrations of oxides of aluminum, potassium, calcium, iron and magnesium, while in the clay material, silicon oxide, aluminum, iron and titanium were predominant. Thermal analyses of the different of the mixtures showed some reactions that indicated transformation (inversion of the quartz), decomposition (loss of hydroxides) and phase formation (mullite) during the heating of the samples. X-ray diffraction supported the findings in the thermal analysis of the analyzed samples. The tests showed that both the ash and sedimentary rock worsened the mechanical properties of the clay material, although they contributed to the improvement of other attributes. The presence of quartz in the ash and rock hindered the formation of the mullite phase formed during the sintering process... (Complete abstract click electronic acess below)
Souza, Agda Eunice de. "Argilominerais : influência dos aditivos (cinza de bagaço de cana-de-acúcar e rocha sedimentar) no processo de sinterização /". Bauru : [s.n.], 2008. http://hdl.handle.net/11449/88494.
Testo completoAbstract: The influence of sugar cane bagasse ash and sedimentary rock, added to clay material, in the sintering process was studied. The clay material and the additives were characterized by X-ray diffraction, X-ray spectroscopy and thermal analysis. The ash and rock samples were triturated, sieved to 0.088 mm and 0.125 mm, respectively, and incorporated at 0, 20, 40, 60, and 80% in the clay material. Prismatic probes were prepared, each pressed at 19 Mpa in a manual press. The pieces were sintered at 500, 800, 900, 1000, 1100 ans 1200ºC, and then characterized by X-ray diffraction and tests for water absorption, linear shrinkage, apparent specific mass, loss on ignition, apparent porosity and flexural strength. X-ray diffraction showed that the ash was composed of crystalline material, predominantly quartz; the sedimentary rock contained, besides quartz, mica; and the main phase of the clay material was kaolinite, but also contained aluminum hydroxide and iron oxides in lower concentrations. Chemical analysis showed that, besides silicon, the ash and the sedimentary rock also contained concentrations of oxides of aluminum, potassium, calcium, iron and magnesium, while in the clay material, silicon oxide, aluminum, iron and titanium were predominant. Thermal analyses of the different of the mixtures showed some reactions that indicated transformation (inversion of the quartz), decomposition (loss of hydroxides) and phase formation (mullite) during the heating of the samples. X-ray diffraction supported the findings in the thermal analysis of the analyzed samples. The tests showed that both the ash and sedimentary rock worsened the mechanical properties of the clay material, although they contributed to the improvement of other attributes. The presence of quartz in the ash and rock hindered the formation of the mullite phase formed during the sintering process... (Complete abstract click electronic acess below)
Orientador: Elson Longo da Silva
Coorientador: Silvio Rainho Teixeira
Banca: Carla dos Santos Riccardi
Banca: Marcos Augusto de Lima Nobre
O Programa de Pós-Graduação em Ciência e Tecnologia de Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi da Unesp
Mestre
Newman, Robert. "Mechanics of sedimentary basin extension". Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305480.
Testo completoWilson, N. P. "Thermal studies in sedimentary basins". Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383208.
Testo completoDodd, Matthew S. "Biosignatures in Precambrian sedimentary rocks". Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10055383/.
Testo completoTurner, Jonathan David. "The subsidence of sedimentary basins". Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/13150.
Testo completoSymons, William Owen. "Sedimentary processes in submarine canyons". Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/416834/.
Testo completoBastow, Trevor. "Sedimentary Processes Involving Aromatic Hydrocarbons". Thesis, Curtin University, 1998. http://hdl.handle.net/20.500.11937/833.
Testo completoBastow, Trevor. "Sedimentary Processes Involving Aromatic Hydrocarbons". Curtin University of Technology, School of Applied Chemistry, 1998. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=9379.
Testo completo1,2-Alkyl shifts on the aromatic ring also begin at an early stage to yield isodihydro-ar-curcumene and these processes continue with increasing maturity. Laboratory experiments using proton and clay catalysts (Lewis acid catalyst) show that the alkyl shift reaction is catalysed by both proton and Lewis acids, and racemisation is only catalysed by Lewis acids. A moderately biodegraded crude oil has been shown to be depleted in the R enantiomer of dihydro-ar-curcumene and an extensively degraded oil has dihydro-ar-curcumene depleted relative to isodihydro-ar-curcumene.The identification of a number alkylnaphthalenes and their possible origins in sedimentary organic matter is described in chapters 6 and 7. In chapter 6 a previously unreported tetramethylnaphthalene (TeMN) was identified in petroleum. This compound is structurally similar to bicyclic compounds of microbial origin and these are suggested as a likely source, via a tetralin intermediate identified in chapter 3. In chapter 7 isomeric pentamethylnaphthalenes previously unreported in sedimentary organic matter are reported. These isomeric pentamethylnaphthalenes (PMNs) were identified in a number of crude oils and sediments, ranging in age from Proterozoic to Tertiary. 1,2,3,5,6-PMN is suggested to form predominantly from the aromatisation of drimanoid precursors via 1,2,2,5,6-pentamethyltetralin identified in chapter 3. In laboratory experiments, the other pentamethylnaphthalenes were generated from 1,2,3,5,6-PMN in proportions that reflect the relative stability of the isomers. By analogy, the other PMNs in sediments are suggested to arise via acid catalysed isomerisation or transalkylation processes. A maturity parameter was developed based on laboratory experiments in conjunction with observed distributions of pentamethylnaphthalenes.The formation of alkylnaphthalenes and alkylphenanthrenes through a ++
methylation process is discussed in chapters 8-10. Several crude oils and shales which contain anomalously high concentrations of 1,6-dimethylnaphthalene, 1,2,5-trimethylnaphthalene, 1,2,7-trimethylnaphthalene, 1,2,3,5-tetramethylnaphthalene, 1,2,3,5,6-pentamethylnaphthalene, 2-methyl-6-isopropyl-1(4-methylpentyl)naphthalene, phenanthrene, 1-methylphenanthrene, 1,7-dimethylphenanthrene and retene have been shown to contain relatively high concentrations of their corresponding methylated counterparts. In laboratory experiments carried out under mild conditions, each of the alkylnaphthalenes and alkylphenanthrenes have been shown to be methylated in specific positions when heated with a methyl donor in the presence of a clay catalyst. These observations have been interpreted as evidence for a sedimentary methylation process.The effect of biodegradation on alkylnaphthalenes and alkylphenanthrenes formed from sedimentary methylation is described in chapter 11. Land-plant-derived aromatic hydrocarbons with a range of susceptibilities to reservoir biodegradation have been identified in crude oils. These compounds are the result of reactions of natural products involving aromatisation, rearrangement and methylation in the sediments (chapters 9 and 10). They are therefore suggested as markers for land-plants in severely biodegraded oils in which most of the other biologically derived compounds cannot be recognised. The order of biodegradability of these compounds has been assessed relative to their non-methylated counterparts namely 6-isopropyl-2-methyl-1-(4-methylpentyl)naphthalene and retene. The order of degradation of the four compounds is : retene < 9-methylretene ~ 6-isopropyl-2-methyl-1-(4-methylpentyl)naphthalene > 6-isopropyl-2,4-dimethyl-1-(4-methylpentyl)naphthalene. These results have been used to assess that a crude oil is a mixture of severely biodegraded and ++
less biodegraded crude oil.
Vieira, Lucas Valadares. "Arquitetura de fáceis e estratigrafia de sequências em alta resolução do sistema eólico fluvial e marinho raso da Formação Piauí, carbonífero da Bacia do Parnaíba, Brasil". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/182022.
Testo completoThe Piauí Formation records the deposition of aeolian, fluvial and shallow marine systems accumulated in a cratonic sag basin. Characterization of the facies associations and sequence stratigraphic framework was done by detailed description of sedimentary facies and logging of outcrops. The facies were classified based on grain texture (size and selection) and sedimentary structures observed. Paleocurrent orientations were measured from cross-strata. Stratigraphic sections were measured at a 1:50 scale at outcrops with good vertical exposure. Six facies associations were recognized: aeolian dunes and interdunes, aeolian sandsheets, fluvial channels, tidally-influenced fluvial channels, upper shoreface and lower shoreface. Through correlation of stratigraphic surfaces the facies associations were organized in system tracts, which formed eight high frequency depositional sequences, bounded by subaerial unconformities. These sequences are composed of a lowstand system tract (LST), that is aeolian-dominated or fluvial-dominated, a transgressive system tract (TST) that is formed by tidally-influenced fluvial channels and/or upper and lower shoreface deposits with retrogradational stacking, and a highstand system tract (HST), which is formed by lower and upper shoreface deposits with progradational stacking. Two low frequency cycles were determined by observing the stacking of the high frequency cycles. Both sequences are formed by an initial regression followed by a progressive transgression. The main control on sedimentation in Piauí Formation was glacioeustasy, which was responsible for the changes in relative sea level. Even though, climate changes were associated with glacioeustatic phases and influenced the aeolian and fluvial deposition.
Vogel, Allan Hayes. "Some Relationships Between Sedimentary Trace Metal Concentrations and Freshwater Phytoplankton and Sedimentary Diatom Species Composition". PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/1295.
Testo completoBashir, Firdous Zahra. "Molecular characterization of sedimentary organic matter". Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246697.
Testo completoHarrison, Fiona Anne. "Seismic response to sedimentary facies variation". Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU089772.
Testo completoMahamod, Yusuff. "Sedimentary processes in the Dwyryd Estuary". Thesis, Bangor University, 1989. https://research.bangor.ac.uk/portal/en/theses/sedimentary-processes-in-the-dwyryd-estuary(ca0aea23-480c-4032-ba10-12a9adee740c).html.
Testo completoLee, Jimin. "Earthquake site effect modeling in sedimentary basins using a 3-D indirect boundary element-fast multipole method". Diss., Online access via UMI:, 2007.
Cerca il testo completoRahman, Mohammad Wahidur Uddin Ashraf. "Sedimentation and tectonic evolution of Cenozoic sequences from Bengal and Assam foreland basins, eastern Himalayas". Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Geology_and_Geography/Thesis/Rahman_Mohammad_54.pdf.
Testo completoPurvis, Martin. "The late Tertiary-Recent tectonic-sedimentary evolution of extensional sedimentary basins of the northern Menderes massif, West Turkey". Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/12815.
Testo completoNoll, Christian John. "A geological framework for temporal sedimentary dynamics". [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2354.
Testo completoVelasco, Mansilla Domitila Violeta. "GIS-based hydrogeologica platform for sedimentary media". Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/135005.
Testo completoLa modelización hidrogeológica tridimensional de los medios sedimentarios (p.ej. sedimentos aluviales, deltas) que suelen constituir acuíferos importantes es compleja debido principalmente a tres factores: (1) la heterogeneidad natural intrínseca del medio, (2) la necesidad de integrar un modelo geológico tridimensional que represente dicha heterogeneidad adecuadamente en los procesos de modelización hidrogeológica y (3) la escasez de herramientas apropiadas para gestionar grandes cantidades de datos hidrogeológicos espacio- temporales. El primer objetivo de esta tesis ha sido el desarrollo de una plataforma software en un entorno GIS que facilite la realización de modelos hidrogeológicos 3D. Está compuesta por una base de datos geoespacial y un conjunto de herramientas que permiten al usuario gestionar, visualizar, analizar, interpretar y pre-post procesar los datos almacenados en dicha base de datos. El modelo de bases de datos propuesta en esta tesis (HYDOR) se ha implementado en una base de datos geoespacial del tipo Personal Geodatabase (ArcGIS, ESRI) y permite la integración en una estructura coherente y lógica de un amplio rango de tipos de información hidrogeológica procedentes de diversas fuentes y con diferentes formatos. Los diferentes instrumentos desarrollados para explotar los datos almacenados en la base de datos se han creado como una extensión de ArcMap (ArcGIS; ESRI) y se reagrupan formando tres barras de herramientas. La primera barra de herramientas (HEROS) además de facilitarnos el análisis y la interpretación de los datos geológicos almacenados en la base de datos, nos permite generar modelos geológicos tridimensionales. Entre las funciones de dichas herramientas, está la de poder visualizar la información geológica aportada por los sondeos en forma de columna estratigráfica así como la generación automática de perfiles geológicos que muestran las diferentes columnas estratigráficas de los sondeos seleccionados. Información útil como los resultados de los ensayos geofísicos así como las unidades geológicas definidas aparecen también en la pantalla del mismo perfil geológico. Este entorno es óptimo para que el usuario analice y defina las superficies de correlación, las diferentes unidades geológicas y las posibles fallas. Estos elementos espaciales se pueden visualizar en tres dimensiones. Finalmente, otra herramienta nos proporciona la parametrización hidráulica inicial (para el modelo hidrogeológico) de las diferentes unidades geológicas partiendo de las características texturales de las mismas. La segunda barra de herramientas, QUIMET, cubre un amplio rango de metodologías para consultar, interpretar y comparar diferentes parámetros hidroquímicos. Además nos permite desarrollar un análisis estadístico completo en el que se incluyen entre otros, análisis estadísticos univariante, bivariante y generación de matrices de correlación de diferentes compuestos químicos. La última barra de herramientas (HYYH) se ha diseñado para visualizar y analizar los datos hidrogeológicos entre los que se incluyen los procedentes de ensayos hidráulicos. Usando estas herramientas se pueden generar mapas de isolineas y otras representaciones espaciales que nos permitan visualizar la profundidad o el espesor de los acuíferos. Del mismo modo, se pueden obtener mapas piezometricos de los puntos seleccionados para un intervalo de tiempo determinado por el usuario. Finalmente, otra herramienta nos permite consultar las interpretaciones procedentes de ensayos hidráulicos. La información obtenida usando todas estas herramientas, también se almacenan en la base de datos constituyendo de este modo una base para futuras interpretaciones. El segundo objetivo de esta tesis ha sido la aplicación de esta plataforma software en la gestión de los datos disponibles del área urbana de Barcelona (NE de España) obteniendo con ello una herramienta apropiada de gestión de los recursos hídricos de esta zona tanto en términos de calidad como de cantidad. Concretamente en la zona del Delta del Besòs (NE de Barcelona), la aplicación de esta plataforma de gestión nos ha facilitado lo siguiente: (1) la delimitación de unidades geológicas basadas en criterios de estratigrafía secuencial, (2) la generación de un modelo geológico tridimensional de facies basado en dichos criterios estratigráficos, (3) el uso del modelo geológico obtenido par establecer la distribución espacial de los parámetros hidráulicos que nos han servido para generar un modelo hidrogeológico consistenete del complejo deltaico. Este modelo se ha calibrado además con datos incluidos también en la base de datos y que proceden de diversos puntos tanto de gestión como de producción durante de los últimos 100 años. Todo esto ha supuesto una mejora significativa en la caracterización geológica del Delta del Besòs lo que nos ha llevado a mejorar su caracterización hidrogeológica.
La modelització hidrogeològica tridimensional dels mitjans sedimentaris que solen constituir aqüífers importants (p.ex. sediments al·luvials, deltes) és complexa. Això es deu principalment a tres factors: (1) l'heterogeneïtat natural intrínseca del medi, (2) la necessitat d'integrar un model geològic tridimensional que representi adequadament l’heterogeneïtat en els processos de modelització hidrogeològica i (3) l'escassetat d'eines apropiades per gestionar grans quantitats de dades hidrogeològiques espai-temporals. El primer objectiu d'aquesta tesi ha estat el desenvolupament d'una plataforma software en un entorn GIS que faciliti la realització de models hidrogeològics 3D. Està composta per una base de dades geoespacial i un conjunt d'eines que permeten que l’usuari gestioni, visualitzar, analitzi, interpreti i pre-post processi les dades emmagatzemades en la base de dades. El model de bases de dades proposada en aquesta tesi (HYDOR) s'ha implementat en una base de dades geoespacial de tipus Personal Geodatabase (ArcGIS , ESRI), que permet la integració d'un ampli rang de tipus d'informació hidrogeològica procedents de diverses fonts i formats en una estructura coherent i lògica. Les diferents eines desenvolupades per l’explotació de les dades emmagatzemades a la base de dades s'han implementat com una extensió d’ArcMap (ESRI). Aquestes eines es reagrupen en tres barres diferents. La primera barra d'eines, HEROS, ens permet analitzar i interpretar les dades geològiques emmagatzemades a la base de dades, permetent alhora la creació de models geològics tridimensionals. També s'han desenvolupat eines que permeten visualitzar la informació geològica aportada pels sondejos en forma de columna estratigràfica, així com generar automàticament perfils geològics per mostrar diferents columnes estratigràfiques de sondejos preseleccionats. A la pantalla del mateix perfil geològic també apareix informació útil com són els resultats dels assaigs geofísics o les unitats geològiques definides. Aquest entorn és òptim perquè l'usuari analitzi i defineixi les superfícies de correlació, les diferents unitats geològiques i les possibles falles. Els elements espacials definits es poden visualitzar en tres dimensions. Finalment, una altra eina ens proporciona la parametrització hidràulica inicial de les diferents unitats geològiques (per al model hidrogeològic) partint de les seves característiques texturals. La segona barra d' eines, QUIMET, inclou un ampli rang de metodologies de consulta, interpretació i comparació de diferents paràmetres hidroquímics. A més a més, també ens permet desenvolupar un anàlisi estadístic complet en el que s'inclouen, entre altres, anàlisis estadístics univariant, bivariant i generació de matrius de correlació de diferents compostos químics. L'última barra d' eines, HYYH, s'ha dissenyat per a visualitzar i analitzar les dades hidrogeològiques, entre d’altres, els procedents d'assajos hidràulics. Amb aquestes eines es poden generar mapes d'isolínies i altres representacions espacials que permeten visualitzar la profunditat o l'espessor dels aqüífers. De la mateixa manera, es poden obtenir mapes piezomètrics per a un interval de temps i de punts determinats per l'usuari. Finalment, una altra eina ens permet consultar les interpretacions procedents d'assajos hidràulics. La informació obtinguda de totes aquestes eines s'emmagatzema a la base de dades, constituint d'aquesta manera una base per a futures interpretacions. El segon objectiu d'aquesta tesi és l'aplicació d'aquesta plataforma software a la gestió de les dades disponibles de l'àrea urbana de Barcelona (NE de Espanya), obtenint una apropiada eina de gestió dels recursos hídrics d’aquesta zona, tant en termes de qualitat com de quantitat. Concretament a la zona del Delta del Besòs (NE de Barcelona), l'aplicació d'aquesta plataforma de gestió ens ha facilitat (1) la delimitació d'unitats geològiques basades en criteris d’estratigrafia seqüencial, (2) la generació d'un model geològic tridimensional de fàcies basat en aquests criteris estratigràfics i (3) l'ús del model geològic obtingut per a establir la distribució espacial dels paràmetres hidràulics que ens han servit per generar un model hidrogeològic consistenet del complex deltaic. Aquest model s'ha calibrat amb dades incloses a la base de dades i que procedeixen de diversos punts, tant de gestió com de producció, durant els últims 100 anys. Tot això ha suposat una millora significativa de la caracterització geològica del Delta del Besòs, el que ens ha portat a millorar la seva caracterització hidrogeològica.
Borge, Hans. "Fault controlled pressure modelling in sedimentary basins /". Doctoral thesis, Norwegian University of Science and Technology, Department of Mathematical Sciences, 2000. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1763.
Testo completoThe starting point for this Dr. Ing. thesis was the requirement for models describing basin scale overpressure for use in basin modelling studies. It is necessary to identify, understand and describe both the generating mechanisms and the fluid flow in sedimentary basins in order to meet this requirement.
All of the models developed are based upon a study area consisting of fault bounded pressure compartments. A reservoir simulator has applied a lateral cross fault transmissibility model and by defining the overpressure history in some of the pressure compartments it has been possible to model the overpressure through geological time. A simpler model estimating the present day overpressure distribution based upon the same fault transmissibility model is developed. This model is able to provide a snapshot of the main present day pressure trends. This model has further been developed to a full pseudo 3D-pressure simulator including generation and dissipation of pressure through time. Due to the quantification of generation and dissipation of overpressure it is possible to model hydraulic fracturing and leakage through the overlying seals. In addition to the models describing the overpressure, an algorithm that converts the pressure compartments into a quadrangle grid system is developed.
The main part of the work in this thesis deals with quantifying basin scale generation and dissipation of overpressure. Different models are developed based upon the available literature and knowledge achieved during this work. All the models used are thoroughly described. The pressure simulator PRESSIM is developed in order to test, improve and reject different models. Several simulations of the overpressure history in the North Viking Graben and the Haltenbanken area offshore Norway are presented. The modelled overpressures are calibrated to the observed pressures revealed by exploration wells. In general, the results are very satisfactory due to relatively small deviations between the modelled and observed overpressures. The simulations provide an increased knowledge of the mechanisms generating and dissipating the overpressure and form a good basis for discussing the nature of the overpressure. In addition, the results suggest which mechanisms are the most important in the different parts of the basin. The pressure simulator PRESSIM can be used to test and verify alternative pressure generation models and flow descriptions in a basin. It is possible to model the position and timing of the hydraulic fracturing because the pressure simulations are based upon a water budget for each pressure compartment.
Dempsey, Alexandra C. "Global Evaluation of Platform-Top Sedimentary Features". NSUWorks, 2013. http://nsuworks.nova.edu/occ_stuetd/170.
Testo completoCromack, Marianne. "A glacial sedimentary system in northwest Spitzbergen". Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/268051.
Testo completoMorgan, Ruth. "Forensic geoscience : sedimentary materials in forensic enquiry". Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439810.
Testo completoHolden, Vanessa Judith Claire. "Sedimentary accretion of the north Sefton coast". Thesis, Lancaster University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493264.
Testo completoPaulsen, Geir. "GPU Computing for Efficient Sedimentary Basin Simulations". Thesis, KTH, Numerisk analys, NA, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148169.
Testo completoDen här uppsatsen presenterar PDEer som beskriver sedimentering av ett system av diffusion och transport ekvationer. Dessa PDEerna blir implementerade med en halvimplicit metod och löst med en grafikprocessor (GPU). Ekvationerna är lösta med iterativa lösare (CG och BiCGStab) från mjukvaran ViennaCL. Tidsmätningarna från dessa operationerna blir jämförda med en CPU-implementation. För användandet av de iterativa lösarna blir en gles matris och en vektor på höger sida satt. Den glesa matrisen och vektorn blir effektivt uppdaterat av GPUen. De implicita termerna blir lagrat i den glesa matrisen och de explicita termerna i vektorn på höger sida. Den glesa matrisen är sparat i det komprimerade glesa rad (CSR) formatet. Algoritmer för att uppdatera den glesa matrisen för PDEs som har Neumann, eller Neumann och Dirichlet randvillkor blir presenterade. Eftersom värdena i den glesa matrisen beror på värdena från det förra resultatet, måste den glesa matrisen uppdateras ofta. Avsevärt med tid sparas av att uppdatera den glesa matrisen på GPUen istället för på CPUen (långsamma data överföringar mellan CPU och GPU reduceras). Accelerationen för GPU-implementationen konstaterades vara 8-10 och 12-18 för GPUena GTX 590 och K20m beroende på storleken på rutnätet. Den höga accelerationen beror på att CPU-modellen som användes till tidmätning är en äldre modell. Om en nyare CPU modell användes, ville accelerationen bli lägre. På grund av begränsad tillgång till nyare hårdvara, har inte mer exakta värden för acceleration kunnat uppdrivas. Indikationer visar dock att GPU-implementationen är snabbare än den sekventiella CPU-implementationen.
Lee, Simon Edward. "Sedimentary processes recorded by continental slope morphology". Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398697.
Testo completoAlzaylaie, Marwan. "Stiffness and strength of Dubai sedimentary rock". Phd thesis, Institut und Versuchsanstalt für Geotechnik der Technischen Universität Darmstadt, 2018. https://tuprints.ulb.tu-darmstadt.de/8153/1/Alzaylaie%282017%29_DissNr102.pdf.
Testo completoDI, CAPUA ANDREA. "Volcanism vs tectonics in the sedimentary record". Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/75294.
Testo completoSieger, Danielle. "Re-examination of changes in fluvial stacking pattern across the p-t boundary in the central transantarctic mountains, Antarctica". Thesis, The University of Wisconsin - Milwaukee, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1548394.
Testo completoA change in fluvial style and a change in the stacking pattern of fluvial channel sandstone bodies occur across the Buckley□Fremouw formational contact in the central Transantarctic Mountains in Antarctica. Strata in the Buckley Formation are characterized by thick floodplain deposits in the Middle to Upper Permian Buckley Formation; whereas, stacked interconnected sandstone bodies occur in the Triassic Fremouw Formation (Barrett et al., 1986; Isbell & Macdonald, 1991a, 1991b; Collinson et al., 1994; Isbell et al., 1997; 2005). Such changes in fluvial stacking patterns have been attributed to changes in the creation of accommodation within basins due to changes in relative sea level, changes in accommodation due to tectonism, and changes in sediment flux associated with loss of vegetation and increased erosion rates following the end-Permian mass extinction event. To explain the changes in the Buckley-Fremouw Formation in Antarctica, Isbell & Macdonald (1991a, 1991b) and Isbell et al. (1997) argued for changing tectonic conditions in the basin while Retallack et al. (2006) suggested the changes were associated with the P□T mass extinction event causing the loss of peat forming plants. This study found that the change in the accommodation across the PTB was a result of tectonism based on evidence of changing sandstone composition, changing paleocurrent orientations, and changing fluvial stacking patterns between the Buckley Formation and the Fremouw Formation. This suggests differential subsidence in the Transantarctic foreland basin with an under-filled basin in the Late Permian changing to an over-filled basin in the Early Triassic.
Morse, Trevor John. "Biostratigraphical constraints (calcareous nannofossils) on the Late Cretaceous to Late Miocene evolution of S.W. Cyprus". Thesis, Durham University, 1996. http://etheses.dur.ac.uk/1565/.
Testo completoCoolidge, Kyle Marvin. "Phosphorus Cycling in Maine Lakes: A Sedimentary Analysis". Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/CoolidgeKM2004.pdf.
Testo completoMcCarthy, Laura Anne. "South Australian sedimentary opals : evidence for syngenetic deposition /". Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09SB/09sbm1234.pdf.
Testo completoFerrero, Charlie David. "Stochastic modelling of thermal histories in sedimentary basins". Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408156.
Testo completoMalik, Qamar Mehboob. "Electrical and transport properties of sedimentary reservoir rocks". Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266398.
Testo completoHusain, Mohd Lokman bin. "Salt marsh sedimentary response to sea level rise". Thesis, University of Hull, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384865.
Testo completoEdwards, G. R. H. "Inverse modelling of extensional sedimentary basins and margins". Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598779.
Testo completoSin, Fung-siu Iris, e 冼鳳笑. "Offshore sedimentary environments in Mirs Bay, Hong Kong". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221610.
Testo completoHattum, Marco Willem Alexander van. "Provenance of Cenozoic sedimentary rocks of northern Borneo". Thesis, Royal Holloway, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423143.
Testo completoHutchison, John. "Structural studies of sulphur-rich sedimentary organic matter". Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303759.
Testo completoLofts, Jeremy C. "Integrated geochemical-geophysical studies of sedimentary reservoir rocks". Thesis, University of Leicester, 1993. http://hdl.handle.net/2381/35058.
Testo completoParke, Jeffrey Robert. "Active tectonic and sedimentary processes in Western Turkey". Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621363.
Testo completoSin, Fung-siu Iris. "Offshore sedimentary environments in Mirs Bay, Hong Kong /". Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021181.
Testo completoChernoff, Carlotta. "Origin and redistribution of metals in sedimentary rocks". Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/289837.
Testo completoZacharias, Angélica Álida [UNESP]. "Preenchimento de vales incisos por associações de fácies estuarinas, formação Rio Bonito, nordeste do Paraná". Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/92857.
Testo completoAgência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP)
A Formação Rio Bonito é a unidade inferior do Grupo Guatá, Eopermiana da Bacia do Paraná. Compreende, da base para o topo, os membros Triunfo, Paraguaçu e Siderópolis. No Estado do Paraná, a espessura da Formação Rio Bonito diminui para norte, principalmente em conseqüência do adelgaçamento e acunhamento do Membro Triunfo, que desaparece no sul do Estado de São Paulo. Para investigar estas variações de espessura e de fácies na Formação Rio Bonito, foi escolhida uma área no nordeste do Estado do Paraná onde a unidade apresenta bons afloramentos e poços para correlação, além de existirem importantes ocorrências de carvão. Para atingir os objetivos propostos, foram levantados perfis estratigráficos verticais e confeccionadas seções estratigráficas, levantados dados de paleocorrentes, caracterizadas associações de fácies sedimentares, correlacionados dados de superfície com os de perfis de poços, interpretados os paleoambientes de sedimentação e comparado o empilhamento estratigráfico da área estudada com o de áreas adjacentes. Cinco associações de fácies foram caracterizadas, permitindo constatar que a parte inferior da Formação Rio Bonito no nordeste do Estado do Paraná apresenta espessuras variáveis por ser o produto de preenchimento sedimentar uma sobre superfície deposicional irregular. Devido à existência de paleovales na superfície do topo do Grupo Itararé, de estruturas sedimentares produzidas por correntes de maré e de paleocorrentes bipolares para norte e sul, a parte inferior da Formação Rio Bonito foi interpretada como produto de preenchimento de vales incisos por depósitos aluviais e de canais de maré (associações de fácies 1 e 2, Membro Triunfo), sobrepostos retrogradacionalmente por lamitos e arenitos de canais de maré da zona central do estuário (associação de fácies 3)...
The Rio Bonito Formation is the lowermost unit of the Guatá Group, Early Permian of the Paraná Basin. It comprises from the bottom to the top, the Triunfo, Paraguaçu and Siderópolis Members. In the State of Paraná, the thickness of the Rio Bonito Formation decreases northwards, mainly because of the thinning and wedging out of the Triunfo Member, which disappears in the south of the State of São Paulo. To investigate thickness and facies variations in the Rio Bonito Formation, an area in the northeast of the State of Paraná was chosen wherein the unit presents good outcrops and wells for correlation, besides the existence of important coal beds. To reach the proposed objectives, vertical stratigraphic profiles and stratigraphic sections were made, paleocurrents data were obtainded, sedimentary facies were characterized, correlation between surface and well profile data were performed, sedimentation paleoenvironments were interpreted and the local stratigraphic succession correlated with adjacent areas. Five facies associations were characterized, being possible to observe that the thickness variations of the Rio Bonito Formation in the northeast of the State of Paraná resulted from sedimentation on an irregular depositional surface. Due to the existence of paleovalleys and the sedimentary structures produced by tide currents and bipolar paleocurrents towards the north and south, the lower portion of the Rio Bonito Formation was interpreted as a product of incised-valleys filled-up by estuarine alluvial and tidal channels deposits (facies associations 1 and 2, Triunfo Member). The succession is retrogradational and the basal section is overlayed by mudstones and sandstones of tidal-channels from the innermost portion of the estuary (facies association 3)...(Complete abstract click electronic access below)
Ertel, John Richard. "The lignin geochemistry of sedimentary and aquatic humic substances /". Thesis, Connect to this title online; UW restricted, 1985. http://hdl.handle.net/1773/11002.
Testo completoTunnicliffe, Jon Francis. "Holocene sedimentary history of Chilliwack Valley, Northern Cascade Mountains". Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/526.
Testo completoRooney, Alan. "Re-Os geochronology and geochemistry of Proterozoic sedimentary successions". Thesis, Durham University, 2011. http://etheses.dur.ac.uk/621/.
Testo completoHolt, Peter Jonathan. "Subsidence mechanisms of sedimentary basins developed over accretionary crust". Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3584/.
Testo completoYang, Xin-She. "Mathematical modelling of compaction and diagenesis in sedimentary basins". Thesis, University of Oxford, 1997. http://ora.ox.ac.uk/objects/uuid:0bdc6c43-4534-4f08-97e2-8a33d6b13e61.
Testo completo