Applied Geophysics
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Processamento e modelagem de dados geofísicos e imagens ASTER aplicados à interpretação geológica e prospecção mineral na Província Aurífera de Alta Floresta, MT / Processing and modeling of geophysical data and ASTER images applied to geological interpretation and mineral exploration in the Alta Floresta Gold Province, MT
The Alta Floresta Gold Province (AFGP) is located in the central-southern Amazon craton between the limits of the Ventuari-Tapajos (1.95-1.8 Ga) and Rio Negro-Juruena (1.8-1.55 Ga) provinces. In its eastern segment there are more than one hundred gold deposits hosted in volcanic and plutonic rocks and concentrated along the Peru-Trairao Belt in a NW-SE direc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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2. Análise estatística da concentração de potássio obtida por aerolevantamentos geofísicos em diferentes formações geológicas na Região de Santa Maria (RS)
The present work was developed in outcrops of Santa Maria region, southern Brazil, Rio Grande do Sul State. Statistic evaluations were applied in different rock types. The possibility to distinguish different geologic units, sedimentary and volcanic (acid and basic types) by means of the statistic analyses from the use of airborne gamma-ray spectrometry inte
Publicado em: 2010
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3. Airborne geophysical and geological data applied to the selection of groudwater potential areas in crystalline rocks of Ceara, Brazil / Dados aerogeofisicos e geologicos aplicados a seleção de areas favoraveis para agua subterranea no dominio cristalino do Ceara, Brasil
The location of water well in Northeast Brazil is usually based on the interpretation of structural lineaments in aerial-photographs and electromagnetic and electrical resistivity ground geophysics surveys. However, the success of these techniques is variable, and the small coverage area is another limitation. This Thesis favors a different approach, the use
Publicado em: 2008
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4. GeofÃsica aplicada na avaliaÃÃo de recursos hÃdricos subterrÃneos e meio ambiente da zona costeira do campo petrolÃfero de fazenda Alegre, norte Capixaba EspÃrito Santo / Applied geophysics in the assessment of groundwater resources and environment of the coastal zone of the oilfield of farm Alegre, EspÃrito Santo north Capixaba
Esta dissertaÃÃo tem como objetivo avaliar as potencialidades dos recursos hÃdricos subterrÃneos da zona costeira do Campo PetrolÃfero de Fazenda Alegre, situado na regiÃo setentrional do EspÃrito Santo, utilizando tÃcnicas de geofÃsica integrada aos aspectos hidrogeolÃgicos, visando à sua utilizaÃÃo futura no processo de recuperaÃÃo suplement
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2007
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5. Caracterização geofísica de alvos rasos com aplicações no planejamento urbano e meio ambiente: estudo sobre o sítio controlado do IAG/USP / Geophysics characterization of shallow targets with applications in the urban planning and environmental: Study on the Shallow Geophysical Test Site of IAG/USP.
The implantation of the Shallow Geophysical Test Site (SCGR) of the Astronomy, Geophysics and Atmospheric Sciences Institute (IAG), from University of Sao Paulo (USP), is a mark in national geophysical history. It is the first site Shallow geophysical study site installed in Brazil. This Test Site is located next to Physics Institute in front of IAG/USP, com
Publicado em: 2007
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6. Um estudo do imageamento geoelétrico na investigação rasa / A study of the geoelectrical resistivity imaging for shallow investigations
Este trabalho trata do estudo detalhado e com profundidade das metodologias de aquisição, processamento e interpretação de dados de caminhamentos elétricos, sob o enfoque de investigações voltadas a objetivos rasos. Nas técnicas de aquisição 2D (caminhamentos) foram utilizados os arranjos dipolo-dipolo, pólo-dipolo, pólo-pólo e Wenner, permitind
Publicado em: 2007
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7. Spatial analysis of plutonics bodies of mineiro belt trough integration of geological, airbone geophysical data and geochemical data / Analise espacial dos corpos plutonicos do cinturão mineiro atraves da integração de dados geologicos, aerogeofisicos e geoquimicos
Airborne geophysical data acquired over the Mineiro Belt in the southern portion of the São Francisco Craton, Minas Gerais, Brazil display patterns not previously identified by geological field mapping. The lack of rock exposures and connections among rock formations at surface poses problems for regional geologic mapping and interpretation, which are diffi
Publicado em: 2006
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8. Razão de Poisson da crosta superior da região de Porangatu, Goiás, Província Tocantins: um estudo por refração sísmica
This work presents a refined seismic model of compressional waves (Vp) showing the distribution of Poisson ratio along the upper crust of central Tocantins Province, central Brazil, based on two dimensional modelling of the Porangatu seismic refraction data. The Porangatu seismic line begins in the Araguaia Belt (FXA) and continues through the western portio
Publicado em: 2006
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9. Global optimization using dense trajectories and applications / Otimização global usando trajetorias densas e aplicações
In this work a new global optimization method is defined combining deterministic and stochastic ideas. For this, we use a strategy to escape of local minimums established in following the trajectory of the Lissajous curve, a dense and smooth curve in an limited box ?. The global algorithm is applied in a geophysical problem, known as the Common Reflection Su
Publicado em: 2005
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10. Dinâmica Costeira dos Campos petrolíferos Macau/Serra, litoral setentrional do Estado do Rio Grande do Norte
This thesis describes the general behavior of the northern shore of the State of Rio Grande do Norte relating beach profile morphology with hydrodynamic and sedimentological parameters. The Macau and Serra Oil Field are inserted on this area and are under accelerated coastal erosion. At these oil fields are installed oil wells from PETROBRAS, nowadays locate
Publicado em: 2005
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11. ContribuiÃÃo Ãs tÃcnicas de locaÃÃo de poÃos em terrenos de rochas cristalinas no semi-Ãrido brasileiro
Geological and geophysical studies were accomplished in the areas of Carnaubeira da Penha and Alagoinha in the semi-arid region of Pernambuco where Neo and Mesoproterozoic crystalline rocks occur. The study aimed at a better understanding of the variables upon which well yields are dependent in hard rock territories, in order to improve well site selection t
Publicado em: 2004
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12. Ensaios não convencionais para determinação da tenacidade à fratura em rochas: análise e comparação / Non-conventional tests for determining the fracture toughness in rocks: analysis and comparison
Since early 1970 s new fracture mechanics concepts have been developed to explain rock fracture behavior. Fracture toughness has been measured and considered as an important intrinsic property of rock indicating the magnitude of fracture strength or its ability to resist crack propagation. Rock fracture mechanics has been widely applied to tectonics, energy
Publicado em: 2004