728 resultados para lagoa Mirim
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This work discusses the analysis of microartifacts as a means to study the process of sculpturing of slopes actants of slopes actants of sculpturing in the archaeological site Lagoa do Camargo. Microartifacts have specific characteristics of transportation and deposition, that helps identifying shaping and sculpturing processes of slopes. The methogology used for analysis of microartifacts is based in Dunnel and Stein's theory (1989) that defines microartifacts as artifacts with reduced size - between 2mm and 0,25mm. According to the authors, an artifact is any object that presents attributes consequent of human activity, in other words, artificial. Also is used the protocol of Vance (1989), that proposed the analysis only the fraction between 0,5mm and 0,250 mm. For disclosure and preservation of archaeological patrimony in the city of Rio Claro, is intended development activities with schools of municipal education system, abour the subject Patrimonial Education, with the methodology adopted by the Institute for National Artistic and Historical Patrimony (IPHAN). Demonstrate and emphasize the importance of cultural patrimony within the local community provides the (re) cognition of these areas as conservation areas, which can be incorporated by this population as areas of collective interest
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A tectono-stratigraphic study of bivalve coquina-reservoir of Linguado Field allowed to identify two trends of permoporosity development. The delineation of these depositional-diagenetic traps were made through structural and stratigrafic cross-sections and maps. It resulted in the identification of shelf-ramp systems (tilted to SSE), it tickens from 60 to 70 meters and ends against an antithetic fault. The main coquina is bounded by fine siliciclastic units, white clay (low Gamma Ray values) or shale (high Gamma Ray values) lithologies, influencing diagenesis of basal or top coquina limestones (cimented, non-porous). Also in the middle of coquina-reservoir the “clayer” material is also associated with cemented carbonates, with also compartimentalize the reservoir into two subzones. The coquina porosity of the subzones is taken from density-neutron logs, while induction log estimates permeabilities and fluid saturations. It’s noticed the porosity development into pairs, good one followed by a regular/poor one and vice versa. These pairs form verticals succession, pair cycles where porosity improves or decreases upwards. These two scales of pore heterogeneity impose strong layering to the reservoir, and influences fluid saturations, oil-water contacts and porosity cut-offs. In a cross-section with density and induction logs, it can be observed the porosity variation along the shelf-ramp coquina (between 3LI_0004_RJS e 3RJS_0157C_RJ), the porosity is better developed in a downdip direction in the case of the two shelf wells, and also be the three ramp wells. The southern west downdip, 3RJS_0157C_RJ well, has best porosity pairs-cycles; however, its lowest structural conditions favour water saturation. Therefore it is fundamental for reservoir fluid evaluation a cross-plot analysis of RHOB-NPHI and Induction logs
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This paper have to objective understand the dynamics of the insertion of a portion of the prudentinos young at work and the respective framing assigned to them by the Foundation of Presidente Prudente Mirim / SP. In the course of this research, we evaluate the issue, through a quantitative survey and qualitative survey of the entity as well as demographic information query the database of public agencies that, shielded by the literature of the subject of the work, explain some features of reality these young people, for example, the conditions they face in search of his achievement as a worker in the learning situation
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O presente estudo teve como objetivos principais analisar a biodiversidade de macroinvertebrados bentônicos em diferentes pontos localizados no fundo da Lagoa do Mian, zona de desembocadura do rio Paranapanema, na Represa de Jurumirim, Estado de São Paulo. Nove pontos de amostragem ao longo da lagoa foram selecionados, distribuídos em três transectos. Cada transecto possuía um ponto na margem direita, um ponto na margem esquerda e um ponto no meio. As coletas foram realizadas em dois períodos do ano, um em março e outro em agosto, para fins de comparação. 2009 representou um ano atípico com relação aos níveis pluviométricos, ocorrendo chuvas intensas no período de julho (um mês tipicamente seco). Foram medidas as variáveis físico-químicas da água, tais como: transparência, profundidade, oxigênio dissolvido, pH, condutividade elétrica e temperatura. Foram recolhidas amostras do sedimento para análise da fauna bentônica e análise do sedimento (quantidade de matéria orgânica presente e granulometria) utilizando-se a draga de Petersen. O material foi triado sob microscópio estereoscópico. A seguir, foi feita a identificação e contagem dos indivíduos. Medidas de densidade, abundância relativa, riqueza, diversidade e equitabilidade foram calculadas. A análise mostrou maior abundância dos táxons no mês de agosto, apontando para a predominância de alguns grupos, como Chaoboridae, Nematoda, Oligochaeta e Chironomidae, este último apenas no segundo mês de coleta. A distribuição dos organismos foi mais significativamente influenciada pela a condutividade elétrica da água, pela transparência, pelo oxigênio dissolvido e por características do sedimento
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The city of São Paulo has, since the beginning of the expansion of its urban sprawl, represented relations of conflicts and contradictions between society and nature. Once the way society relates to nature is defined by how the social agents themselves correlate in certain social and historical contexts, the ways of interaction between the social and natural elements will be different according to the forms of production and appropriation of the urban space. Even more evident is the case of the great national metropolis, given its demographic dimensions and historical conditions, the process of urban expansion follows a logic where spaces of better quality for housing are occupied by those of better financial conditions. Thus, although there are exceptions, the poorest people live in places less desirable, in less resilient environments of lower environmental quality, relating to nature and its phenomena with greater risks. These risks are reflected here as recurring flooding, mudslides and landslides for which the rain is constantly blamed. So we have a situation where it is clear that a weather phenomenon differently interacts with different social groups. In this context, the study was conducted to compare extreme events occurred in two regions of São Paulo: the Freguesia do O, in the north side, and M'Boi Mirim, in the south side. Both are regions with large number of risk areas and are in the same urban climate unit. However, they present different conditions of social vulnerability. With the investigation of each extreme rain event occurred in the two regions, in the period of 2000-2010, supplemented by field research, we tried to observe how far the rain, with his intensity and volume, can, in fact, be related to the accidents.
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The act of containing water is one of the most practiced by the civilizations along history, in the will to increase the offer of water to many uses. The raise of environmental worries surround many human activities has given a big attention to dams. Indeed, the environmental consequences about dams are proporcional to their size, what gives to the big dams a more detailed Project and a bigger political concerning that increases the built, estability and maintenance of them. Then, the projects of medium and small dams are weak, limitaded to handbooks, textbooks and empirical recommendations, while the constructions of small dams are growing everytime more. With that being said, the present work intends to analise the geological and geotechnical conditionants that can cause break of small earth dams by making a case study in the Jaguari Mirim Watershed, located in the city of São João da Boa Vista (SP), and can be used to encourage the concern with small dams. In the area of study were identificaded, from satellite images, 248 dams. The map of physiographical compartmentalization defined by Pilachevsky (2013) was used to define the locations in the study área that would have bigger risk to the break of dams. Then, 9 of this dams were analised in field research, using references made by Cerri, Reis e Giordano (2011) and the risk of the analised dams were defined. A study about this type of structure is highly necessary to avoid big damages. An analysis of the geological and geotechnical conditionants that can cause break of dams guides the project in a way to avoid adverse consequences, especially when integrated with locacional conditions observed in the place of the dam’s building
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The Lagoa Feia Group (Early Cretaceous) is widely distributed around the Campos Basin, forming deep prospects in the basin. It has two large coquinas platforms shellfish, and the lower deck constituent important reservoir in the southwestern of this basin, a producer of oil in the trend-Badejo-Linguado-Pampo. Due to the rising national energy demand is necessary to see the incorporation of technical knowledge and training of human resources in the knowledge of petroleum reservoirs. In this sense, the Pampo Field, as well as other fields of the trend, fall as interesting target area for study. Accumulations of hydrocarbons are partitioning structural - stratigraphic only for the three fields. They are mixed origin of traps, with influence of structural, stratigraphic and diagenetic. With the development of catchment areas of the latter condition has manifested itself in such a way to verify parts with nonproducing wells, which are observed in the intervals coquinas are closed, with reduced thickness and / or low quality porous. The understanding of these accumulations, by testing structural, stratigraphic and reservoir and the use of geological and geophysical techniques, will bring a better understanding of the portions relating to economic accumulation or subeconomic development of hydrocarbons in this region, contributing to the scientific knowledge of the Pampo Field.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The location of Jundiai-Mirim river basin, close to large urban centers and industrial parks, has contributed to the appreciation of their lands. Consequently, the region has an intense process of urbanization that resulted in an increasing environmental disturbance in the forest areas. Given the need to preserve existing natural vegetation, because the watershed is the source of water used to supply Jundiai, SP, this study evaluated changes in the environmental quality of the watershed forest fragments between 1972 and 2013. The environment quality was determined by evaluating nine indicators of environmental disturbance, obtained by techniques of Geoprocessing and integrated by Multicriteria Analysis. The results showed a constant tendency of deteriorating the environmental quality of natural vegetation between 1972 and 2013, attributed to the intense process of occupation of the watershed. It is concluded that: (a) urbanization and deforestation of natural vegetation were primarily responsible for changes in environmental quality; (b) there is a need to create public policies to preserve the natural vegetation in the watershed.
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Maintenance of agricultural diversity in rural settlements – a case study in Moji-Mirim, São Paulo, Brazil. This paper investigated whether farmers, when established in rural settlements, keep some traditional features with regard to crops diversity and circulation of planting material. Its aims were to make an ethnobotanical survey of species and varieties and analyze the dinamics of seeds and propagules circulation. A total of 139 varieties of food crops (55 species/28 families) were found, being 87% of them intended for self-consumption; 54% of varieties come from Minas Gerais, home state of most respondents. The number of varieties grown per household ranged from 17 to 54. The informal and free circulation of planting material is the most important way of acquisition. The circulation network is very active, showing a potential for the management of crops diversity, with emphasis on the contribution of settlers to the maintenance and valorization of traditional varieties.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)