Deposit River
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Propriedades mecânicas e análise microestrutural de um concreto produzido com agregado da região Amazônica brasileira
RESUMO Em virtude da escassez de agregado em algumas regiões na Amazônia, o presente trabalho tem como objetivo, avaliar as propriedades de concretos produzidos com agregado proveniente do leito do rio Oiapoque. Fazendo um estudo comparativo relacionando as características entre os agregados graúdos utilizados na construção civil, em especial o materia
Matéria (Rio J.). Publicado em: 25/11/2019
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2. Late Quaternary vegetation dynamics from central parts of the Madeira River in Brazil
The present study reconstructs the paleovegetation of a varzea (seasonally flooded) forest in the central parts of the Madeira River floodplain in Brazil using palynological data. Forty-nine cut-bank sediment samples from the Madeira River were processed in the study; from these, ten samples contained pollen: two contained pollen from the Middle Pleniglacial
Acta Bot. Bras.. Publicado em: 2015-03
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3. Impactos socioambientais e implicações à saúde do trabalhador: o caso do garimpo de esmeraldas em Campos Verdes-GO / Socio-environmental Impacts and its implication to the health of mining workes: The case of the mining emerald in Campos Verdes-GO
This research aims at analyzing the socio-environmental problem and the consequences to the workers at the emerald mining fields located in Campos Verdes to the north of the state of Goias Brazil. The area being studied is situated between the parallels 14.25 and 14.30 degrees of south latitude and the meridians of 49.55 and 50.55 degrees of west longitude,
Publicado em: 2009
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4. CompreensÃo da evoluÃÃo das encostas do mÃdio vale do rio Marrecas (planalto basÃltico - SW PR) atravÃs da caracterizaÃÃo de depÃsitos de colÃvio / Understanding the evolution of hilllside middle river valley Teal (plateau basalt - SW PR) through the characterization of colluvial deposits
The object of this research is to understand the evolution of the slopes of the middle valley of Marrecas River, established in basaltic rocks, located in southwestern of Paranà state, through the characterization of two colluvial deposits. Colluviums deposits are set on the slopes of the urban area in Francisco BeltrÃo, one of them located in the Hill of
Publicado em: 2009
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5. Estudo integrado de análogo a reservatórios petrolíferos fluviais: caracterização, parametrização e modelagem tridimensional de depósitos recentes do Rio Assu (Rio Grande do Norte/Brasil)
This work shows a integrated study of modern analog to fluvial reservoirs of Açu Formation (Unit 3). The modern analog studied has been Assu River located in the same named city, Rio Grande do Norte State, Northeast of Brazil. It has been developed a new methodology to parameterizating the fluvial geological bodies by GPR profile (by central frequency anten
Publicado em: 2008
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6. A Disputa da Argila pelos ArtesÃos do Alto Do Moura â Caruaru â PE
On the formation of the earthly crust, several minerals gather and make up different kinds of rocks. Nature itself is in charge of consuming the rocks which are on the surface, by elaborating several relievo physionomies. Drainage is separated by hydrographic basins. Ipojuca river hydrographic basin, created thanks to the great failure known as Pernambucano
Publicado em: 2007
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7. Produção de sedimentos em áreas urbanas: o caso da Microbacia do Córrego do Pau DAlho. Guarulhos, SP
This work presents the research results about sediment yield related to actual land use in Pau dAlho watershed, about 0, 51 km2, located at Cabuçu region, Guarulhos, SP. The research was conducted by an Engineering Geology approach encompassing technogenic sediment deposits survey, the environment characterization and the history of land use that originated
Publicado em: 2007
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8. O QuaternÃrio do Parque Nacional Serra da Capivara, PiauÃ, Brasil: morfoestratigrafia, sedimentologia, geocronologia e paleoambientes
The Serra da Capivara National Park is internationally recognized because it houses the most important concentration of rock paintings and archeological sites in the American continent. Vestiges of human occupation are distributed in 1.000 archeological sites many times located in Quaternary sediments, with few researches realized until the moment. The objec
Publicado em: 2007
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9. Integration of remote sensing (SRTM and RADARSAT-1) geology, gravimetry and magnetometry date as an aid to a morphostructural study in the Uatumã River area, Amazon Basin / Integração de dados de sensoriamento remoto (SRTM e RADARSAT-1), geologia, gravimentria e magnetometria para estudo morfoestrutural da área do Rio Uatumã, Bacia do Amazonas
Drainage network automatically extracted from a SRTM digital elevation model was combined with geologic, gravity and magnetometry data for morphostructural study in the region of the Uatumã River, Amazonas Sedimentary Basin. Data interpretation allowed the identification of different drainage patterns, including trellis, pinnate, contorted, annular and angu
Publicado em: 2006
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10. Caracterização de argilas de utilização na industria ceramica por espectroscopia de reflectancia
Clays are among the ver) important primary, raw materiais due to their broad spectrum uses in the industIy. In the specific case of the ceramic industl) , cIays are used in many fields, incIuding the manufacturing of porcelains, pottery, chimney-flue tile, roofing tile, conduit, light-weight aggregate, floor tile, sewer pipe, drain tile and so on. The charac
Publicado em: 2003
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11. Estudo geológico e geofísico da falha de carnaubais, Bacia Potiguar-RN, e implicações neotectônicas
The segment of Carnaubais Fault located in the southeasthern portion of Guamaré Graben (Potiguar Basin) was studied. Several structures were detected and some of them strongly suggest that the last movements in Carnaubais Fault are of Neotectonic age. The study comprises an integrated interpretation of geologic, geomorphologic and geophysical data (gravimet
Publicado em: 1998
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12. Geoquimica e impacto ambiental do arsenio no Vale do Ribeira (SP-PR)
The sedimentary and volcanic rocks of the Ribeira Valley, in the Apiaf FoId Belt, host a variety of PbZn deposits, which were formed by singenetic (Perau-type) and epigenetic (Panelas-type) models. Long-term mining activities originated a toxic contamination by arsenic in the stream sediments of the Ribeira de Iguape river that drains the region. The purpose
Publicado em: 1997