A5045762235- Geological formations and processes
- Geography and Environmental Studies
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Geological Modeling and Analysis
- Geochemistry and Geologic Mapping
- Rock Mechanics and Modeling
- Geotechnical Engineering and Soil Stabilization
- Geological and Geophysical Studies
- Hydraulic Fracturing and Reservoir Analysis
- Geological and Geophysical Studies Worldwide
- High-Velocity Impact and Material Behavior
- Drilling and Well Engineering
- Seismic Imaging and Inversion Techniques
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Soil Mechanics
- High-pressure geophysics and materials
- Metallurgical Processes and Thermodynamics
- Marine and Offshore Engineering Studies
- Landslides and related hazards
- Fish biology, ecology, and behavior
- Silicone and Siloxane Chemistry
- Geological and Tectonic Studies in Latin America
- Linguistics and Language Studies
- Injection Molding Process and Properties
Universidade Federal de Ouro Preto
2011-2024
Faculdade de Tecnologia e Ciências
2021
Faculdades Integradas de Taquara
2021
Escola Superior de Ciências da Saúde
2013
Union zur Förderung von Oel- und Proteinpflanzen e.V.
2007
Sociedade Brasileira de Geofísica
2004
The style of deformation rocks from basin-infilling sequences in positively inverted natural basins was discussed upon the results laboratory experiments carried out sandboxes with sand packs laid down space between two wooden blocks. simulated stages crustal extension leading to (1) a half graben due above listric extensional detachment, blocks simulating footwall and hanging wall, or (2) graben, external margins that drifted apart horizontal detachment. Combinations different angles were...
A evolução da bacia Potiguar, na Margem Equatorial Brasileira, apesar de constituir objeto inúmeros estudos continua palco controvérsias, em especial, no que diz respeito a sua extremidade sudoeste, o Graben Apodi. Com intuito caracterizar geometria Falha Apodi e entender mecanismo formação dobras suas adjacências, foram analisados seções sísmicas reflexão dados poços. Confeccionaram-se mapas contorno estrutural isópacas Formação Pendência, sin-tectônica. análise das revelou variações Apodi,...
O Cone do Amazonas, situado na porção profunda da bacia Foz Margem Equatorial Brasileira, constitui um dos maiores leques submarinos mundo. É caracterizado por processos de argilocinese e pela presença sistema falhas distensivo compressivo conectado entre si descolamento basal. Nesse trabalho, re-examinaram-se seis linhas sísmicas reflexão com o objetivo contribuir para melhor conhecimento tectônica gravitacional, idade controversa. A análise das feições sismoestratigráficas permitiu...
Sandbox experiments with different boundary conditions demonstrate that antiformal stacks result from a forward-breaking thrust sequence. An obstacle blocks forward propagation and transfers the deformation back to hinterland in previously formed true duplex. In hinterland, continued shortening causes faults merge toward tectonic transport direction until older thrusts override younger thrusts. using thin sand layers or high basal friction, is accommodated by cyclic process of thrusting,...
Analogue experiments were carried out to get insights into the processes governing positive inversion during foreland propagating thrust tectonics in southern Serra do Espinhaço, a Brasiliano/Panafrican foldthrust belt southeast Brazil. In particular, model listric half-grabens inverted by applying contractional displacement footwall blocks. We investigated two different conditions half-grabens: (i) extensional and detachments at same level (ii) positions. The models revealed that...
A evolução de riftes oblíquos é analisada neste artigo pela realização modelos físicos, em escala. O intuito foi analisar a fase rifte da Bacia Santos, examinando influência estrutura preexistente do embasamento. Para refinar as informações obtidas, empregou-se tecnologia particle image velocimetry. Desenvolveram-se três experimentos caixas acrílico, com dimensões internas 37 cm x 41 07 (largura comprimento altura), empregando-se areia e silicone para crosta rúptil dúctil, respectivamente....
Com o intuito de se determinarem as propriedades friccionais da areia quartzo empregada em modelagens físico-analógicas foram desenvolvidos dois ensaios laboratório. No primeiro, estimou-se coeficiente atrito interno a partir do ângulo mergulho falhas empurrão, caixas areia, e, no segundo, realizaram-se medições um ring-shear tester. Nesse aparelho, determinaram-se propriedades, separadamente, para areias tingidas diferentes cores, tinta Acrilex. Os valores revelaram-se mais altos e preciso...
Localizada na porção central do estado da Bahia, a Bacia de Irecê exibe as mais significativas exposições coberturas neoproterozoicas norte Cráton São Francisco. Apesar grande quantidade estudos geológicos ali realizados, restam ainda várias questões em aberto, especial no que tange à evolução tectônica cinturão epidérmico antepaís envolve rochas bacia. No sentido contribuir para o entendimento tal evolução, este trabalho revisa os principais elementos estruturais bacia e adjacências...
Scaled sandbox models are used to simulate the development of ´basement´-controlled, salients. We investigate controlling factors on closed curvatures in map-view, considering constant both sand pack thickness and space between obstacles. These compared with Fundão-Cambotas Fault System Proterozoic fold-thrust belt Quadrilátero Ferrífero region, along southeastern margin São Francisco craton. In experiments, a pronounced curvature resulted from margin-controlled salient process presence (i)...
This study aimed to understand the 2D kinematic processes associated with development of fault-propagation folds in contractional systems. Analogue models were used analyse influence of, and interplay among, various parameters, including: (1) analogue material (quartz sand v. glass microspheres); (2) mechanical stratigraphy (anisotropic two different analogue-packs); (3) initial thickness analogue-pack. Each model was analysed using particle image velocimetry quantify spatial temporal...
Structural and microstructural studies have been carried out to assess the structural evolution of Au, Ag Pb lode occurrences that spread among Serrita Parnamirim municipalities, Pernambuco, Brazil.These are hosted in metassediments, correlated Salgueiro Group, granodiorites from Suite, Piancó-Alto Brígida Domain, southwestern Zona Transversal, Borborema Province.The metassediments underwent four deformation phases switched compressional strike-slip tectonics.The first two developed a...
We compare the deformation patterns produced by sand and a mica mixture (14:1 ratio of to weight) while simulating basin fill in extension inversion models analyze potential for applications that require strong elasto-frictional plastic analogue material physical models. Sand have nearly equal angles internal friction, but deforms at significantly lower level peak shear stress. In extension, experiments show fewer normal faults. During inversion, most striking difference between is related...
Esta pesquisa demonstra um sistema de Realidade Aumentada desenvolvido para auxiliar no treinamento pessoas, quanto a execução serviços montagem e manutenção equipamentos. Atualmente, realização manutenções desta natureza, é necessário locomoção do especialista até o local onde se encontra equipamento. No contexto da pandemia COVID-19 presença física deste profissional traz riscos à saúde, principalmente as pessoas que encontram local, além empecilhos, como tempo dinheiro...
Glass microbeads are frequently used in analog physical modeling to simulate weak detachment zones but have been neglected models of thrust wedges. Microbeads differ from quartz sand grain shape and low angle internal friction. In this study, we compared the structural characteristics To obtain a better picture their mechanical behavior, determined frictional properties using polarizing scanning electron microscopy ring-shear tests, respectively. We built shortening experiments with...
Sandbox analogue models were used to investigate the structural evolution of Água Fria Range region, located in northeast Cabral Range, at east portion São Francisco Craton, central Brazil. We effect different material during progressive shortening a previous extensional basin, consisting horst and grabens detaching above an intracrustal décollement. The study focused on double vergent reverse faults basement high, Boqueirão High, hinterland fault-related folds, both post-rift sequence....
The mine of Piteiras in the emerald district Itabira-Nova Era, Minas Gerais, was investigated terms geology, mineralogy and genesis. mineralization is concentrated a two to four meters wide hundreds meter long tabular body metaultramafic schists composed variable amounts phlogopite Mg-hornblende. strongly sheared intruded by syntectonic albite-rich pegmatites. country rocks are paragneisses belonging metavulcanossedimentary sequence possible Archean age, metamorphosed under conditions...
This work aims to describe the results of physical experiments on propagation staircase thrusts. Kinetic and geometric features these thrust faults have been largely simulated in sandbox computer modeling which hanging-wall flat has positioned layers, are situated at model top. The models employed present studies follow theoretical assumptions put into an interlayered incompetent rock bed. Several boundary conditions were applied eight experiments, influence that had was analyzed. Such...
In order to analyze the effect of a moving wall on experimental thrust systems, progressive evolutionof antiformal stacks was simulated in sandbox models. The rigid, acrylic substituted byanalogue material. Different boundary conditions demonstrated that physical models use thehabitual stiff obstructs development real architecture compressional tectonics.
Experiments were undertaken to investigate the structural evolution of transpressional Cambotas Shear Zone, also known as Fault, which integrates strongly curved Fundao-Cambotas Thrust System at eastern portion Quadrilatero Ferrifero. The formation Zone was simulated in three physical models by translation a block supposed reproduce reactivation preexisting structures, and curvatures fold-thrust belts. An orocline, associated thrust fault foreland, offered most satisfying simulation study...
Em experimentos de areia foram simulados sistemas falhas distensivos e inversão tectônica positiva,com o objetivo discutir paradigma do movimento relativo blocos falhas. Os sistemas, querepresentam hemigrabens com falha borda lístrica, simulados, em diferentes modelos, comtranslação bloco teto muro. demonstraram que móvel uma falhanormal lístrica influencia na arquitetura dos estruturais. bacia extensional, ângulo demergulho das internas, antitéticas, é mais baixo quando móvel. Isto ocorre,...