Relação solo-paisagem em um transecto da depressão periférica e do planalto ocidental, região de Rio Claro (SP)

As unidades de paisagens naturais se diferenciam pelo relevo, clima, cobertura vegetal, solos ou até mesmo pelo arranjo estrutural e do tipo de litologia. A caracterização pedológica e o entendimento das relações entre pedologia, geologia e geomorfologia são importantes para a compreensão da distribuição dos solos numa paisagem. Considerando esta como sendo uma combinação dinâmica e instável de elementos físicos, biológicos e antrópicos, e estando em constante evolução, realizou-se o estudo das características químicas, físicas, mineralógicas e morfológicas das coberturas superficiais de uma mesma Unidade Fisiográfica na região do Planalto Ocidental e da Depressão Periférica Paulista nas proximidades de Rio Claro – SP, para a compreensão de suas relações genéticas e cronológicas na evolução das paisagens da área. Para isso foram comparados os solos de dois transectos dentro dos compartimentos, levantando e analisando as características citadas para que se possa obter informações que permitiram o diagnóstico da evolução da área, visando contribuir para o avanço das coberturas superficiais e sua relação com a evolução da paisagem. Foi possível compreender determinados processos e produtos que deram origem às coberturas superficiais e consequentemente a algumas paisagens representativas da Quadrícula de São Carlos a partir dos métodos empregados. O estudo das coberturas de alteração intempérica da região centro-oeste paulista, e seu reconhecimento, são fundamentais para o ordenamento territorial e seu planejamento regional

Estudo da inflexão da Serra do Garrote e sua influência na zona de falha de Vazante (MG)

The Vazante Fault Zone (VFZ), located northwestward of Minas Gerais, host the largest zinc deposit known in the Brazilian territory. This structure is hosted in Vazante’s Group rocks, a metassedimentary sequence of marine environment. Near Vazante is situated the south end of the VFZ. To the west, occur the Serra do Garrote inflexion, characterized by a curvature in the contact of Formations Serra do Garrote and Serra do Poço Verde. This structure is through the analysis of aerial imagery of the region and represented in the published geological maps. The objective of this work is to understand what causes this inflexion and determine whether it affects the VZF, causing a shift in the same, and possibly, in the mineralization as well. To this end, it was done a mapping work in the region covering the Serra do Garrote inflexion and the south end of the VFZ, in 1:25.000 scale, supplemented by petrographic description of thin section and geologic sections, with cooperated to the understanding of the structural evolution of the region. Data analysis allowed the identification of six deformation phases. The D1 an D2 phases generated the main foliation. The D3 phase generate kink bands folds, with NS axis and vertical axial plane. The fourth phase is responsible for generating the Vazante Fault Zone. The fifth phase produces low angle folds and shear zones, subparallel to S1//S2. The last phase generates folds with NW axis and vertical axial plane, with causes the inflection of lithologic contactas. Field observations also make possible the conclusion that the Vazante Fault Zone presents a south continuation, which is affected by deformation associated to D6 phase attributing to the trace of the VFZ a curved geometry, similar to that exhibited by lithologic contacts between units of the map

Avaliação da vulnerabilidade a contaminação das águas subterrâneas do aquífero Rio Claro na mineração Mandu, distrito de Ajapi - Rio Claro-SP

Groundwater in the Rio Claro district is predominantly extracted from low productivity wells on the Itararé Aquifer, from depths greater than 150 m. These factors in conjunction with increasing demand for water supply have stimulated many industries to exploit the Rio Claro Aquifer, constituted by Cenozoic sediments of the Rio Claro Formation, where hydraulic properties are poorly known. For this reason, it is necessary to study the possible vulnerable to contamination punctual locations of the aquifer, in order to enable proper management of these groundwater reserves and to allow continuity of supply. Thus, this study aims to assess the vulnerability to groundwater on contamination Rio Claro Aquifer, punctually in Mandu mining site area, located in the District of Ajapi, Rio Claro - SP, the company which operates and sells industrial sand. The risk of groundwater contamination depends on the relationship between the hydrogeological characteristics of the aquifer layer (vulnerability to contamination) and the pollutant load. To evaluate the susceptibility to contamination it was applied the method GOD (FOSTER and HIRATA, 1987; FOSTER et. al., 2002) and, in addition, field and laboratory tests were performed to chacacterize the granulometry of the strata, hydraulic conductivity and some physical indices to make the evaluation more assertive and detailed. Punctual contamination vulnerability found in the aquifer Rio Claro, was moderate, which means that the aquifer is vulnerable to some contaminants, but when continuously discharged or leached. Thus, Mandu mining has a great role on preventing the emission of contaminants in the process of extraction and processing of sand... (Complete abstract click electronic access below)

Avaliação das taxas de erosão química e física na bacia hidrográfica do Ribeirão Jacutinga (SP)

Currently with the growing technological advancement and global, new areas are being devastated, and as a result, the erosion became more frequent causing loss of soil, infiltration capacity of the surface and weathering of rocks. In this way, environmental studies are increasingly frequent to understand the environment in which we live, but also to avoid any degradation of the same and of finite natural resources, which are essential for human life. From this, this work has as main goal, analyzing the rates of chemical and mechanical erosive watershed of Ribeirão Jacutinga, at its mouth, in the city of Rio Claro, supporting environmental studies and sustainable development today. Order to reach these values were measured and total dissolved solids in suspension in the stream during the months from January to July 2012. As results included higher rates of both physical and chemical weathering in the rainy months, especially january

Diagnóstico ambiental das áreas de expansão urbana do município de Jaguariúna - SP

The spatial chaotic urban growth is an increasing and common problem in Brazilian cities, especially in the State of São Paulo. In order to assist the territorial expansion planning, the present study aimed to conduct the environmental diagnosis of urban expansion areas in the City of Jaguariúna – SP, bounded by the Municipal Plan. From the preparation and analysis of thematic maps, literature review and field analysis, data were collected for use and occupation, geology, geomorphology, pedology, vegetation, water resources and features surrounding the five urban sprawl existing areas. It was noted, in general, that these areas are suitable for urban occupation, since they show flat geomorphology characteristics, with flattened, medium to large hills, slightly undulated, with low slope, and soils that do not present risks to the deployment of buildings, once properly managed. It was also observed a few water bodies crossing these areas and a few areas with native vegetation beyond permanent protection areas along the rivers. By the analysis of these areas and their surroundings, it was possible to determine on which area the urbanization process can occur more quickly. Thus, the study allows the City of Jaguariúna to perform a more effective occupation planning in these areas, always aiming the sustainable development and, consequently, the improvement in population’s quality of life, as well as the maintenance of environmental quality.

Reconstrução paleogeográfica da área da bacia do rio Jequitaí - MG

Os solos, assim como as rochas, materiais inconsolidados e regolíticos, apresentam propriedades e características específicas, relativas a seus ambientes de formação. A partir de então o solo torna-se uma fonte de informação de toda a história evolutiva de uma região em seus mais variados parâmetros. Uma das formas de entender essa evolução dinâmica da paisagem é gerando um modelo de paleosuperfícies a partir da interpolação de confluências de drenagem. O trabalho objetivou reconstruir a paleogeografia da área inserida na bacia do Rio Jequitaí, a partir do Método de Isobases Confluentes, procurando analisar e identificar a evolução dos solos. A área está localizada na região centro-norte de Minas Gerais, sendo o Rio Jequitaí um afluente do Alto Rio São Francisco. O trabalho consistiu, na primeira etapa, em levantamento biblio/cartográfico da área em estudo. Durante esse levantamento, além de detectar as características físicas, bióticas e sócio-econômicas de modo a completar, reorganizar e adequar as informações da área, foi levantado um banco de dados base para a geração das Isobases, o qual foi constituído por modelos digitais de elevação (DEM) do programa ASTER e de dados vetoriais da principal rede de drenagem da bacia do Jequitaí. Na segunda etapa, as paleosuperfícies foram geradas usando aplicativos do programa ArcGis da ESRI. O produto final são as proto-superfícies para cada ordem de confluência. Assim no término do trabalho tem-se uma reconstrução da paleopaisagem correspondente, bem como das pro-estruturas equivalentes às condições de equilíbrio dinâmico daquele momento. A partir dos resultados obtidos foi possível concluir que a metodologia das Isobases Confluentes permite correlacionar os dados palinológicos, geocronológicos e geomorfológicos obtidos durante o estudo, para a reconstrução dos ambientes... (Resumo completo, clicar acesso eletrônico abaixo)

Identificação e mapeamento da dinâmica fluvial com fins à avaliação da sensibilidade ao derrame de óleo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise geomorfológica e de impactos ambientais da microbacia do Córrego Wenzel - Rio Claro/SP

This study aimed to survey and analyze the geomorphological aspects of watershed stream Wenzel in Rio Claro, as well as anthropogenic incidents about which he eventually causing serious environmental impacts. All these changes in the natural environment are generated from the constant development of the urban environment, which ends up leaving aside factors relevant to the natural order and that over time they become problems to humans. As various forms of environmental degradation occurring on some form of relief, geomorphology can make a major contribution in this field, since the analysis of the hydrographic network can lead to understanding and explanation of numerous geomorphological issues because the waterways are process morphogenetic the most active in the terrestrial landscape sculpture. The research with a systems approach and vision interrelated aspects in question may even serve as a basis for practical planning and urban management, in addition to detailed study of the area, which is of paramount importance to the local society

Mapeamento geológico-geomorfológico na região de Quirinópolis-GO

Geological and geomorphological mapping is an important tool for the characterization of physical environment, thus enabling the planning and use of areas more efficiently. This work represents a geological- geomorphologic mapping on the scale of 1:20.000 in the rural area of Quirinópolis – GO town, where outcrop rocks of Paraná Sedimentary Basin, specifically the Bauru Group. Through the methodology of analysis of integrated elements of the physical environment, it was possible to delineate geological- geomorphological five units, which were characterized as lithology, topography, soil conditions, and operating processes, and the development of weathering profiles bring of great importance for planning of land use as occupation thus avoiding further degradation of the physical environment

Proposta de recuperação e manejo de nascente em área rural do município de Álvares Machado – SP

The lack of proper planning in intervention works of runoff water on rural properties and rural public roads leads to economic damage and loss of environmental quality. The impact of the action without technical base is soil erosion, siltation of water sources, loss of the quality and availability of water, invalidating areas for cultivation and livestock. The conservation of headwaters requires beyond regeneration of the environmental characteristics the repair and management of the degraded watercourse in order to control erosion. This graduate work in Environmental Engineering from Universidade Estadual Paulista Julio de Mesquita Filho - UNESP Presidente Prudente proposes a headwater recuperation and management in rural area of Álvares Machado municipality, São Paulo State, through the method of deep drainage applied to the case of a rural road near the outcrop of water. This technique consists in the installation of draining structures in sub-areas of the road surface, or sub-gutter and/or in the platform border in order to conduct the underground flow of water and reduce the loss of sediment in water flow. Therefore, was performed a historic study of use and occupation of land in the municipality of Álvares Machado, portraying transformations of the landscape caused by human action. Geology, geomorphology, pedology and hydrogeology data were collected from the study area in order to establish the conditions that led into the current situation of degradation and formulate an effective intervention strategy for civil works

Investigação sobre deformação neotectônica no lineamento Guapiara, região de Ourinhos, Fartura-SP e Santo Antonio da Platina - PR

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Subsídios para o plano de manejo da futura Estação Ecológica Santa Elisa

O presente estudo tem como objetivo reunir os dados existentes sobre a área da futura Estação Ecológica Santa Elisa, localizada no Centro Experimental Central do Instituto Agronômico (IAC), em Campinas – SP. Assim, foram reunidos dados sobre os aspectos bióticos (fauna e flora) e abióticos (clima, geologia e geomorfologia, hidrografia e solos), resultando em uma caracterização da área como forma de subsídio para o plano de manejo. Através de saídas a campo foram levantados problemas que prejudicam a caracterização de uma estação ecológica, surgindo assim um segundo objetivo, adequar a área da futura unidade para o melhor enquadramento em tal categoria. Foram então elaborados projetos para melhorar o estado de conservação da futura unidade, sempre levando em consideração a falta de recursos. Sendo assim recomenda-se parcerias com universidades para que dessa forma se consiga implantar os projetos e realizar pesquisas de forma mais econômica. Embora o IAC tenha um histórico de pesquisas voltado apenas para a agricultura, a preocupação ambiental vem aumentando e a criação dessa unidade de conservação garante que se continue preservando os remanescentes presentes no IAC mesmo após a mudança de sua gestão.

A antropogeomorfologia na bacia do Córrego do Cavalheiro - Analândia/SP: uma avaliação da dinâmica do uso da terra e sua adequabilidade a legislação ambiental e a capacidade de uso

The assessment of land use dynamic can be an instrument for analysis in anthropogeomorphology, which would allow one to verify the human geomorphological actions and its various implications in changing the original morphology for the creation of a human morphology. This study aimed to consider the land use dynamics and its interference in the morphology of Cavalheiro Stream Basin. From this assessment, to understand the implications of land use in the creation of a human morphology, as well as to analyze if the current use is in accordance with the legal restrictions placed by ongoing environmental legislation and with the ability to land use. The chosen of this studied area was due to assumptions raised by Pinton (2007) for changes in the dynamic of rainwater erosion of this area caused by human actions, specially the cultivation of sugar cane in morphologies that are unfit for it. The search took as methodological support the principles that concern the General Systems Theory, trying to see the watershed as an open system. The geomorphological data, of land use and of legal restrictions to the use and occupation of land, were collected from different cartographic techniques. Besides, it was developed a sketch map of land use capacity by adapting the technique proposed by Lepsch (1983). This way, the data obtained in this survey are considered capable to provide subsidies for the identification of changes in original morphology of the Cavalheiro Stream Basin and the genesis of a human morphology, as well as conflicts and adjustments of current land use in environmental system and on the legal restrictions outlined in the ongoing environmental legislation, contributing to a proper environmental planning with the characteristics of the physical environmental system of this basin

Identificação e caracterização de unidades geomorfológicas na bacia do baixo paranapanema

Os processos geomorfológicos são responsáveis pelas formas do relevo, constituindo uma das dimensões do substrato físico para o desenvolvimento das atividades antrópicas. O conhecimento e a identificação dos mecanismos destes processos podem contribuir para o entendimento das dinâmicas naturais e das ações humanas sobre a superfície terrestre. Desta forma, objetivo desse trabalho de pesquisa foi identificar e caracterizar as principais unidades geomorfológicas do baixo curso do rio Paranapanema, a partir da utilização dos Sistemas de Informação Geográfica (SIG) e do uso de geotecnologias. No SIG foram realizadas as seguintes etapas da pesquisa: processamento digital das imagens de radar, georreferenciamento dos dados, delimitação e compilação da área de estudo e elaboração dos mapas temáticos. Os procedimentos metodológicos adotados fundamentaram-se basicamente nos conceitos de morfoestrutura e morfoescultura para classificação e taxonomia do relevo, desenvolvidos por Jurandir L. S. Ross (1992). As classes de dissecação do relevo, carta clinográfica e hipsometria da bacia foram obtidas a partir do processamento de cartas topográficas e imagens de radar da missão SRTM. Os resultados apresentados na forma de mapas, gráficos e tabelas permitiram analisar e caracterizar os processos geomorfológicos atuantes na bacia do baixo Paranapanema, com maior riqueza de detalhe (1: 250 000)

Análise comparativa de concepções de cartografia geomorfológica aplicada a ambientes litorâneos

The intense urbanization in coastal environments can cause environmental changes due to the susceptibility of these areas. It is therefore of utmost importance to understand the environmental quality of coastal area and the geomorphological features are essential to make it possible, as well as the geomorphological maps that are used as an instrument to analyze the relief. However, there is no standardization among the geomorphological mapping techniques, since the proposals vary according to the taxonomy of the relief, the adopted scale and the objective of the researcher. This paper aims to carry out geomorphological mappings of sectors of the city of Mongaguá, in São Paulo state, according to the conceptions of Verstappen and Zuidam (1975) and Gustavsson, Kolstrup and Seijmonsbergen (2006), seeking to verify the possibilities and constraints that each one can provide for environmental management. Verstappen and Zuidam’s design (1975) is a classical international bibliography proposal indicating the symbols and colors that will be used to represent the relief according to the origin shape of the geomorphological features; Gustavsson, Kolstrup and Seijmonsbergen's conception (2006) is a latest international proposal which also uses symbols and colors that can be combined to represent various forms of relief, coming from different origins. The mappings in this research are although not presented as a mainstream map, but as a cartographic representation in which the symbols are superimposed on the digital ortophoto map to provide the reader an association between symbolism and the relief represented. The result is a comparative analysis among the symbols that were used in each mapping, in which is discussed what design is the most appropriate, considering the adopted scale and the geomorphological features of the mapped area