Sediment cores
Detection of Tephra Layers in Antarctic Sediment Cores with Hyperspectral Imaging
... lake sediment records from several ice-free environments in the South Shetlands [38 – ...The sediment cores were sealed in the field using specific plastic caps and tape and stored at a constant ...
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Consistently dated Atlantic sediment cores over the last 40 thousand years
... ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining the possibility of rapid climate shifts in response to anthropogenic greenhouse ...
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Distribution and partitioning of heavy metals in estuarine sediment cores and implications for the use of sediment quality standards
... in sediment cores collected from three estuaries (Thames, Medway and Blackwater) in south-east ...with sediment quality values (SQVs) to determine the potential ecotoxicological risk to ...
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Metals in Sediment Cores from Nine Coastal Lagoons in Central Vietnam
... of sediment cores from nine coastal lagoons of central Vietnam (Lang Co, Truong Giang, An Khe, Nuoc Man, Nuoc Ngot, Thi Nai, O Loan, Thuy Trieu and Dam Nai) were sampled in 2008 and analyzed to assess metal ...
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J. Braz. Chem. Soc. vol.24 número2
... the sediment cores were higher than TEL and lower than PEL, and were therefore in the transition zone where toxicity effects on biota cannot be reliably ...the sediment cores exceeded the PEL ...
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Geochronology and heavy metal flux to Guanabara Bay, Rio de Janeiro state: a preliminary study
... the sediment record (Li et ...estuarine sediment cores have been used increasingly over the last 30 years as a means of understanding environmental change within contributing catchments (Vaalgamaa ...
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J. Braz. Chem. Soc. vol.13 número1
... collect sediment cores from study ...Three cores were collected from Lake 1, three from Lake 2 and one from Lake ...The cores were sectioned into 2cm slices, and the central part of each slice ...
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J. Braz. Chem. Soc. vol.25 número1
... the sediment coincides with a period of major changes in the PSR system, with the construction of water power plants, the beginning of water transposition from the PSR to the Guandu River (to feed the Rio de ...
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Is it possible to use "twin cores" as a unique sedimentary record? An experimental design based on sediment color
... Sedimentary cores are widely used for studying Quaternary ...of sediment that is available is proportional to the diameter of the core, which is rarely bigger than 15 ...more sediment is to use two ...
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J. Braz. Chem. Soc. vol.25 número8
... Four sediment cores were collected from IGB using a 1 m long Kullemberg-type sediment profiler (Husky-Duck, ...The cores were sliced in 2-cm intervals until 20 cm, and from this depth on, 5-cm ...
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A 350 ka record of climate change from Lake El'gygytgyn, Far East Russian Arctic: refining the pattern of climate modes by means of cluster analysis
... the sediment cores PG1351 and Lz1024 from Lake El’gygytgyn, Chukotka peninsula, Far East Russian Arctic, were subject to a hierarchical agglomerative cluster analysis in order to refine and extend the ...
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J. Braz. Chem. Soc. vol.15 número6
... This study was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil, as part of the PRONEX Program, 46.6090/2001-3 and Fundação de Amparo a Pesquisa do Estado do Rio de Janeiro ...
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Climate change forces new ecological states in tropical Andean lakes.
... Total sediment chlorins were analyzed by reflectance spectroscopy using a Model 6500 series Rapid Content Analyzer (FOSS NIRSystems ...mesh) sediment samples were run through a predictive model based on 35 ...
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Towards an improved organic carbon budget for the western Barents Sea shelf
... (sub-)recent sediment studies, we pro- vide a regional picture of the (marine and terrigenous) or- ganic carbon fractions and marine paleoproductivity changes in the MIZ beyond core ...of sediment ...
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J. Braz. Chem. Soc. vol.25 número4
... and sediment cores obtained from five sampling sites in the Preto, Turvo, and Grande Rivers during the wet and dry ...for sediment quality, particularly for Cr and Mn, indicate the need for ...
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Multi-decadal atmospheric and marine climate variability in southern Iberia during the mid- to late-Holocene
... ODP-161-976A the initial age model of Jiménez-Amat and Zahn (2015) was shifted significantly within the studied section by about 700 years. The reason for this shift are the new AMS 14 C dates accomplished dur- ing this ...
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Carbonate sedimentation and effects of eutrophication observed at the Kališta subaquatic springs in Lake Ohrid (Macedonia)
... a slight decrease in carbonate, an increase in Fe and Si con- tent as well as in diatom content, and a sewage smell upon core opening. The lower carbonate content in the few coarse layers in Unit L is interpreted as a ...
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Braz. j. oceanogr. vol.57 número3
... Sediment cores are an essential tool for the analysis of the dynamics of mangrove ...a sediment bank; T2) a smooth cordgrass Spartina alterniflora bank; T3) an active mangrove progradation fringe ...
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Dicionário e cores
... com as particularidades de cada cultura, ou seja, conotativamente e subjetivamente. Por consegüinte, a percepção das cores será representada lingüisticamente de forma diferenciada de uma cultura para outra. Com ...
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Planificação As cores
... Inicia-se amanhã com o acolhimento das crianças no tapete. Quando já se encontra o grupo reunido canta-se a canção do Bom Dia e em seguida procedesse à marcação das presenças. De imediato estabelece-se um pequeno ...
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