Geomorphologic Analysis
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. 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
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14. Influência do uso da terra na incidência de processos de dinâmica superficial na região de Marília (SP)
The study area comprises the western portion of the Marília Plateau, State of São Paulo, southeastern Brazil, whose geological substrate encompasses Cretaceous sedimentary rocks of the Bauru Group and local Cenozoic units like colluvium aprons, fluvial terrace deposits, in situ regoliths, and modern alluvial deposits. In a geomorphologic sense, the study a
Publicado em: 2008
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15. A história do intemperismo na Província Borborema Oriental, Nordeste do Brasil: implicações paleoclimáticas e tectônicas
Until some years ago, weathering geochronology was primarily based on the K-Ar and 40Ar/39Ar dating of supergene minerals. Recent advances in the analysis of supergene goethite by the (U-Th)/He method expanded the number of suitable minerals for such purpose, as well as the time of application for weathering geochronology. This study represents the first sys
Publicado em: 2008
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16. A planície aluvial do médio rio araguaia: processos geomorfológicos e suas implicações ambientais / The alluvial plain of the middle Araguaia River: geomorphological processes and their environmental implications
The Araguaia River is the most important fluvial system of South America. With an area of 380.000Km, its includes two phytogeography regions that have a good part of planet biodiversity: Cerrado, in the south, and Amazonia Forest, in the north of Brazil. The high level of Cerrado ecosystem destruction and changes in the land using, after 1965, promoted an in
Publicado em: 2006
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17. Caracterização geomorfológica e paleogeográfica da plataforma continental adjacente a foz do Rio Apodi-Mossoró, RN/Brasil
As bacias marginais brasileiras têm um grande potencial gerador e acumulador de petróleo, em geral associados a um sistema de vales incisos que são desenvolvidos em resposta a queda do nível do mar. Esses sistemas estão diretamente relacionados com atividades econômicas desenvolvidas em regiões costeiras, como portos para indústria petrolífera, sali
Publicado em: 2006
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18. Invertebrados de cavernas do Distrito Federal: diversidade, distribuição temporal e espacial
There are 4,153 registered caves in Brazil, but most cave studies has been done by observant cavers rather than part of surveying programs. A correlate problem is the lack of ertebrates were sampled by active seach (hand collecting and the register of rganisms) and by baited pitfall traps. The number of traps varied among caves due to their morphological and
Publicado em: 2006
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19. Análise multitemporal dos elementos geoambientais da região da Ponta do Tubarão, área de influência dos campos petrolíferos de Macau e Serra, município de Macau/RN
The study area is inserted in Ponta do Tubarão region, Macau City, setentrional littoral of Rio Grande do Norte State, composed of Tertiary and Quatemary sedimentary rocks and sediments. This region is characterized for the intense action of the coastal processes, causing the morphologic instability in part of the area, beyond the interference of human acti
Publicado em: 2004
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20. Avaliação de imagens QUICKBIRD na análise geográfica de um setor da Mata Atlântica do Rio Grande do Sul / Geographic analysis of a Mata Atlântica site in Rio Grande do Sul state - Brazil using QUICKBIRD imagery.
In 1994, the Center for Research and Nature Conservation (PRÓ-MATA) was created, looking forward to develop studies and actions for the protection and recovery of the ecosystems from a sector of "Mata Atlântica" in Rio Grande do Sul, Brazil. PRÓ-MATA was conceived from the cooperation between the Catholic University of Rio Grande do Sul (PUCRS - Pontifíc
Publicado em: 2003
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21. DistribuiÃÃo de Plantas Lenhosas e RelaÃÃes HistÃricas entre a AmazÃnia, a Floresta AtlÃntica Costeira e os Brejos de Altitude do Nordeste Brasileiro
In Brazil the geomorphologic evolution imposed by the Quaternary climatic fluctuation account for part of the actual biota distribution. Here we used parsimony analysis of endemicity (PAE) to analyze, from a historical approach, the distribution pattern of the flora at the Centro de Endemismo Pernambuco. Three most parsimonious cladograms were found. The Nel
Publicado em: 2002
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22. Aspectos Morfo-Dinâmicos daComplexo Lagunar Nísia Floresta-Papeba-Guaraíras, Região Costeira Sul Oriental Do RN
This dissertation presents the results of research developed in the Nísia Floresta-Papeba-Guaraíras Lagoon Complex, located on the south coast of the Rio Grande do Norte State. The main objectives of this dissertation were the stratrigraphic characterization, in detail scale, of the and the coastal dynamics study of the lagoonal deposits sedimentation, as
Publicado em: 2000
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23. Floristica e caracterização das comunidades vegetais da planice costeira de Picinguaba, Ubatuba-SP
In the present study, we examine a better floristic, base of the severa I communities better delimited that compose the vegetation complex of the coastal plain of Picinguaba. That plain possesses about 8 Krn2, situated in the township of Ubatuba, northern coast of the State of São Paulo, (23°20 -23°22 S /44°48 -44°52 W). This area is a Unit of Conservat
Publicado em: 1999