Sediment Deposit
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Application of the fundamental parameter method to the assessment of major and trace elements in soil and sediments from Osamu Utsumi uranium mine by WDXRF
Abstract Wavelength dispersive X-ray fluorescence spectrometry (WDXRF) is a suitable technique for the characterization of contaminated mining sites, providing a quick and reliable screening for areas of significant contamination. This study established and validated a non-destructive methodology for quantitative simultaneous determination of major and minor
REM, Int. Eng. J.. Publicado em: 16/09/2019
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2. Distribution patterns of meiofauna on a tropical macrotidal sandy beach, with special focus on nematodes (Caixa d’Água, Amazon Coast, Brazil)
Abstract Spatial distribution patterns (both horizontal and vertical) of meiofauna, with special focus on nematodes, on a tropical macrotidal beach across different climatic periods were analyzed in this study. Samplings were carried out at five stations in the intertidal zone in June (rainy season) and December (dry season), 2011. At each station, three sam
Braz. j. oceanogr.. Publicado em: 13/06/2019
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3. Contamination and Soil Biological Properties in the Serra Pelada Mine - Amazonia, Brazil
ABSTRACT Discovered in 1980 and unleashed an utter gold rush of the modern era, Serra Pelada was the largest open-air mine in Brazil. About 80,000 gold prospectors worked there until 1984, when the gold pits were flooded. The environmental impact caused by mining inflicted irreversible damage to the ecosystem, with the formation of a large lake and piles of
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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4. 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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5. Arquitetura deposicional de um sistema de lençol de areia eólica : a Bacia Bauru na região de Marília (SP) / Depositional architecture of an aeolian sand sheet system : the Bauru basin on Marília (SP)
O principal objetivo deste trabalho é a caracterização estratigráfica da bacia Bauru nas proximidades do município de Marília (SP) através da análise das diferentes litofácies e superfícies limitantes de diversas escalas. O trabalho inclui também a análise dos paleossolos como elemento arquitetural, e a geofísica de poços que proporcionaram um
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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6. Os Nematoda da plataforma continental ao largo do sistema estuarino de Santos / Nematoda of the continental shelf off Santos estuarine system
To assess the influence of Santos estuarine system on the nematodes of the adjacent continental shelf, the density, composition and generic diversity of this group were analyzed and related to the sediment type, organic matter content and phytopigments biomass. The sediment was collected at six stations, in the winter of 2005 and summer of 2006, with a box-c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/03/2011
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7. Os Nematoda da plataforma continental da região sudeste brasileira sob a influência da Água Central do Atlântico Sul: Cabo Frio (RJ) e Ubatuba (SP) / The Nematoda of the continental shelf of the Brazil\ s southern region under the influence of the South Atlantic Central Water intrusion: Cabo Frio (RJ) and Ubatuba (SP)
Meiofauna is an important component of the marine benthic ecosystem as its densities are usually high in continental shelf sediments and respond quickly to environmental changes. Nematoda is the dominant group among meiofauna organisms, is highly diverse and can be used, as well as meiofauna, as a tool for natural and anthropogenic impacts monitoring. This s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/09/2009
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8. 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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9. Sismoestratigrafia do cretÃceo superior/ neÃgeno nas bacias de Pernambuco e da ParaÃba, NE do Brasil
This work presents the mapping of seismic sequences from the albian portion of the offshore basins of Pernambuco and Paraiba embasado in individualizaÃÃes of fÃcies and interpretation of seismic maps of isÃcronas. In Basin of Pernambuco were mapped four disagreements and four sequences (A, B, C, D), the basin of Paraiba has three disagreements, a surface
Publicado em: 2008
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10. Ocean outfall of Santoss sewage: contribution on the sediment of fund to Al, Mg, K, Ca, Fe, Ti, Na, Si, Ba, Cu, Zn, Cr, Mn, Co, Ni e S / Emissário submarino de Santos: contribuição nos sedimentos de fundo para Al, Mg, K, Ca, Fe, Ti, Na, Si, Ba, Cu, Zn, Cr, Mn, Co, Ni e S
After the construction of the Ocean Outfall of Santoss sewage, all of Santoss and part of São Vicentes effluents started to be discarded in the Santos Bay after Preconditioning. In light of that aspect, CETESB began a monitoring control of the materials dumped through the emissary. In this dissertation sediments samples in the environment of that monitoring
Publicado em: 2008
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11. 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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12. Macozoobenthic community structure in the region influenced by Almirante Barroso Terminal (TEBAR) in the São Sebastião Channel (SP, Brasil) / Estrutura da comunidade macrozoobentônica na região de influência do Terminal Almirante Barroso (TEBAR) no Canal de São Sebastião (SP, Brasil)
A study of benthic macrofauna was carried out along the São Sebastião Channel (SSC) during summer and winter of 2005. Sediment samples were undertaken (van Veen grab 0.03 m2) to chemical and biological analysis, in an area influenced by anthropogenic activities. The stations nearby the Terminal Almirante Barroso (TEBAR) oil terminal, Araçá sewage system
Publicado em: 2007