Coastal Geology
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Geomorfologia, estratigrafia de sequências e potencial de preservação dos sistemas Laguna Barreira do Quaternário Costeiro do Rio Grande do Sul.
The stratigraphic record of Rio Grande do Sul Coastal Plain embraces four high-frequency depositional sequences corresponding to four barrier-lagoon systems (I to IV). These sequences have been developed during the Pleistocene and Holocene, in response to glacioeustatic cycles of 100 ka. The Holocene coastal system, related to the younger sequence (IV), exhi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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2. Morfodinâmica associada entre duna, praia e zona submarina como subsídio a adequada ocupação do espaço costeiro na Praia do Peró - RJ. / Morphodynamics associated between dune, beach and underwater area as an aid to proper occupation of coastal space in Praia do Pero - RJ.
The coastline offers a veritable mosaic of diversity in coastal landforms, which enable the development of a number of different economic activities. Coastal environments are highly dynamic and involve a complex series of continental and oceanic processes. The beach of Pero, located between Cape Buzios and Cabo Frio, Rio coast, appears as an area distinct fr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2011
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3. Evolução tectono-estratigráfica e paleoclimática da formação maricá (Escudo Sul-Rio-Grandense, Brasil) : um exercício de geologia histórica e análise integrada de uma bacia sedimentar neoproterozóica
Significant improvement in the knowledge concerning the Neoproterozoic Maricá Formation of the Sul-riograndense Shield, southern Brazil, was obtained in the latest years. This contribution synthesizes recent data obtained though an integrated analysis of the lowermost unit of the “Camaquã Basin”. Stratigraphic and paleocurrent analyses, petrography, Sr
Publicado em: 2010
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4. Caracterização dos tabuleiros pré-litorâneos do Estado do Ceará / Characterization of pre-boards the coastal State of Ceará
A zona costeira cearense tem aproximadamente 600 km de extensão, distribuída em diversas unidades geoambientais. O foco deste trabalho são os Tabuleiros Pré-Litorâneos, moldados em rochas da Formação Barreiras, de Paleodunas e Dunas. O plano amostral é composto de 71 poços rasos totalizando 360 amostras distribuídas por toda zona de Tabuleiros. Por
Publicado em: 2009
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5. A erosão costeira e sua influência sobre a atividade petrolífera: alternativas sustentáveis na mitigação de impactos ambientais
The study area consist in high sensitivity environments located on the northern coast of Rio Grande do Norte, Northeast Brazil. The barrier island are the main geomorphological features on the coastal landscape, being naturally instable and surrounded by industrial activities like oil fields, salt industry, shrimp farms and urban areas sometimes installed pa
Publicado em: 2009
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6. Relação solo-relevo-substrato geológico na planíce costeira de Bertioga (SP) / Soil-relief-geologic substract relationship on the coastal plain of Bertioga (SP)
Knowledge of the chronology, relief, geology and soils in sedimentary coastal environments is relevant for their interpretation, reconstitution and conservation. In Bertioga, São Paulo State Brazil, several sections of the Pleistocene and Holocene morphostratigraphic costal plain units are preserved in the landscape. This thesis seeks the perception of the
Publicado em: 2009
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7. Sediment distribution model in marine shelf area : a cambrian example from the Sergipano Belt (Lagarto Formation, Estancia Domain, Sergipe) / Modelo de distribuição de sedimento em area de plataforma marinha : um exemplo do cambriano da faixa sergipana (Formação Lagarto, Dominio Estancia, Sergipe)
Coastal areas of wave-influenced tidal plains are not well known in recent and ancient depositional systems. The Lagarto Formation represents one of these mixed depositional systems influenced both by tide and wave activities. This work describes the sediments in this system, interprets the depositional processes and defines a distributional model of sedimen
Publicado em: 2008
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8. Biodisponibilidade de mercurio e outros metais-traço em sedimentos do Rio Cubatão, Sistema Estuarino de Santos-Cubatão (SP) / Bioavailability of mercury and other trace-metals in sediments of Cubatão River, Santos-Cubatão Estuarine System (SP)
Coastal-estuarine ecosystems from the south of São Paulo State are presently degraded specially in Cubatão municipality, in consequence of population concentration and, industrial and petrochemical complexes. These environmental impacts have begun in the 1950s after the construction of the largest Latin America petrochemical complex in the Cubatão city.
Publicado em: 2007
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9. Distribuição de mercúrio total como indicador de poluição urbana e industrial na costa brasileira
The monitoring of the pollution status of the Brazilian coast is hampered by the lack of a consistent environmental indicator. We propose Hg as an environmental proxy to anthropogenic pollution of coastal regions due to its absence in the Brazilian geology, its ubiquity in anthropogenic effluents, and its toxicity. Available data suggest Hg "backgrounds" in
Química Nova. Publicado em: 2004-10
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10. "O povo da lagoa: uso do SIG para modelamento e simulação na área arqueológica do Camacho" / "The people of the Lagoon: using GIS for modelling and simulation in the Camacho Archaeological Area"
Data from the Camacho region, southern coast of the Santa Catarina state, southern Brazil, were collected and combined in the GIS GRASS. This region is a coastal plain, with many lagoons, and was occupied by a prehistoric population at least from c. 5,000 years before present (BP) to 1,000 years BP. In this period, the local mean sea level had fallen c. 2 m.
Publicado em: 2004
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11. Modelagem e desenvolvimento de um banco de dados geográficos : aplicação à elaboração de mapas de sensibilidade ambiental ao derramamento de óleo na área costeira entre galinhos e São Bento do Norte-RN
The area between Galinhos and São Bento do Norte beaches, located in the northern coast of the Rio Grande do Norte State is submitted to intense and constant processes of littoral and aeolian transport, causing erosion, alterations in the sediments balance and modifications in the shoreline. Beyond these natural factors, the human interference is huge in th
Publicado em: 2002
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12. Cartografia temporal e análise geoambiental da dinâmica da foz do Rio Piranhas-Açu, regiao de Macau-RN, com base em imagens Landast 5-MT
This work embraces the application of Landsat 5-TM digital images, comprising August 2 1989 and September 22 1998, for temporal mapping and geoenvironmental analysis of the dynamic of Piranhas-Açu river mouth, situated in the Macau (RN) region. After treatment using several digital processing techniques (e.g. colour composition in RGB, ratio of bands, princ
Publicado em: 2001