Erosive Processes
Mostrando 13-24 de 65 artigos, teses e dissertações.
-
13. Geobiologia do Atol das Rocas, Atlântico Sul Equatorial
This thesis approaches the geobiology of the only Atoll in the South Atlantic Ocean. Different classifications were made for Rocas Reef Complex along the nineteenth and twentieth century, which are evaluated historically. Biogeomorphological analysis and mapping of the reef units were done on the Rocas Atoll for the comprehension of the sedimentary dynamic a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
-
14. CARACTERÍSTICAS GEOAMBIENTAIS DO MUNICÍPIO DE JAGUARIBE CE E SUAS IMPLICAÇÕES NOS PROCESSOS DE DEGRADAÇÃO AMBIENTAL
The degradation of the natural resources worries studious of diverse areas of the knowledge and the population, in general. In semi-arid regions, as the north-eastern Brazilian, this problematic is aggravated due to the natural vulnerability ally to the process of use and occupation of the land. In the State of the Ceará, the areas more affected by the degr
Publicado em: 2009
-
15. Caracterização ambiental de bancos areno-lamosos nos campos petrolíferos de Macau e Serra (RN), como subsídio às medidas mitigadoras ao processo erosivo
On Rio Grande do Norte northern coast the process of sediment transport are intensely controlled by wind and sea (waves and currents) action, causing erosion and shoreline morphological instability. Due to the importance of such coastal zone it was realized the multi-spectral mapping and physical-chemical characterization of mudflats and mangroves aiming to
Publicado em: 2009
-
16. Geotechnical site characterization and study of an erosion process caused by urban setting / Investigação geotécnica e estudo de um processo erosivo causado por ocupação urbana
This dissertation presents geotechnical site characterization results of an erosion process area, in Bauru city, inland of São Paulo State, Brazil. The objective is to characterize the local soil and define the major causing factors for the erosion process evolution, which initiated with deforestation, soil sealing and discharge of pluvial and sewer water.
Publicado em: 2009
-
17. Monitoramento por dgps e análise dos processos erosivos da linha de costa na praia de Pirangi do Norte - Parnamirim / RN
Through out the course of a steady increase in search and recovery of space in the coastal zone, there is also an expanding concern about the erosion processes of this area. The main problem in coastal areas is that urbanization occurs in a disorderly fashion and unsustainable, further aggravating the problems of coastal dynamics. The study area of this work
Publicado em: 2009
-
18. Gênese, distribuição e caracterização dos espongilitos do noroeste de Minas Gerais
This study relates to the spongillites deposits that occurs in shallow ponds on a karstic planation surface developed on rocks of the Neoproterozoic São Francisco Supergroup. Cenozoic siliciclastics sediments are related to this surface and Mesozoic Areado Group rocks occur adjacent to the deposits. Field studies associated with the analysis of multispectra
Publicado em: 2009
-
19. Análise integrada do meio físico como subsídio ao diagnóstico de processos erosivos na bacia do ribeirão Extrema em Anápolis (GO) / Integraded analysis of physical medium as subsidy to the diagnosis of erosive processes basin of Extrema large Anópolis (GO)
Atualmente, em escala variável, as cidades brasileiras apresentam problemas comuns, derivados das intensas modificações sofridas em décadas anteriores e agravados ao longo dos anos, pela falta de planejamento e controle da utilização da terra. Na cidade de Anápolis-GO, o uso das terras, não levou em consideração as fragilidades do meio físico em q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/11/2008
-
20. O litoral de JoÃo Pessoa (PB), frente ao problema da erosÃo costeira
The JoÃo Pessoa- PB coast like other places of the Brazilian Northeastern, show erosive problems associated to natural process and a urban disorder occupation, that happened from the 70 decade, of last century, when the city began expanding towards the beaches. This work was onjective to classify the study area in relation to coastal erosion vulnerability.
Publicado em: 2008
-
21. Mapeamento geomorfolÃgico e de processos erosivos da bacia hidrogrÃfica do rio Botafogo â PE utilizando tÃcnicas de geoprocessamento
This work presents the result of geomorphological and sedimentlogical studies and also erosion processes at the Botafogo Watershade, located 40 km north of Recife, Pernambuco State, Northeastern Brazil. In order to treat and analyse cartographic charts and remote sensing products , geoprocessing techniques were used. The data were validated and taken togethe
Publicado em: 2008
-
22. Mapeamento geotécnico da bacia córrego da Barra, aplicação do penetrômetro de impacto em estudos de processos erosivos São Pedro - SP - escala 1:10.000 / Engineering geological mapping of the Barra stream basin using soil penetrometer in the study of erosive processes in São Pedro - SP - scale: 1:10.000
Este trabalho consiste em um mapeamento geotécnico da bacia do córrego da Barra, localizada no município São Pedro, no Estado de São Paulo, apresentando uma área aproximada de 56,5 KM POT.2. Para realização deste trabalho, efetuou-se um levantamento dos trabalhos anteriores realizados na área, fotointerpretação, e trabalhos de campo. Foram elabora
Publicado em: 2008
-
23. Water level behavior evaluation in upstream tailing dam. / Avaliação do comportamento do nível dágua em barragem de contenção de rejeito alteada a montante.
Among the main building methods of tailings dams, the upstream method is undoubtedly the most vulnerable to the occurrence of the failure originated by the power of seepage groundwater through the embankment. In a reservoir-dam system having low cohesion slimes, such as tailings dams, the power of seepage groundwater benefits the installation of internal ero
Publicado em: 2008
-
24. AVALIAÇÃO DO TRANSPORTE DO HERBICIDA PARAQUAT EM SOLOS DO CAMPO EXPERIMENTAL DE BOM JARDIM, RJ / EVALUATION OF TRANSPORT OF HERBICIDE PARAQUAT IN SOILS OF EXPERIMENTAL FIELD OF BOM JARDIM, RJ
This paper presents results of a study, performed in the laboratory, on the mobility of the herbicide Paraquat, investigated from its percolation through soils samples withdrawn from the Experimental Field of Bom Jardim, RJ. It was determined the physical, chemical and mineralogical properties of samples collected in such manner to form a profile of ground l
Publicado em: 2008