Search Results - "Patchineelam, S. R"

Geochemical behavior of rare earth elements (REE) in urban reservoirs: the case of Funil Reservoir, Rio de Janeiro State, Brazil by Santos-Neves, J. M. C. O., Patchineelam, S. R., Araujo, D. F., Godoy, J. M. O., Almeida, A. C.

“…Rare earth elements (REE) have unique chemical properties, which allow their use as geochemical tracers. In this context, the present study aims to assess the…”
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Carbon accumulation and storage capacity in mangrove sediments three decades after deforestation within a eutrophic bay by Pérez, A., Machado, W., Gutiérrez, D., Borges, A.C., Patchineelam, S.R., Sanders, C.J.

“…A dated sediment core from an eutrophic mangrove area presented non-significant differences in carbon accumulation rates before (55.7±10.2gm−2yr−1) and after…”
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Pyritization of trace metals in mangrove sediments by Andrade, R. A, Sanders, C. J, Boaventura, G, Patchineelam, S. R

“…The present study investigates the levels of Mn, Zn, Ni, and Co pyritization in mangrove sediments along distinct sedimentary zones in Enseada das Graças, a…”
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Rare Earth Element and Radionuclide Distribution in Surface Sediments Along an Estuarine System Affected by Fertilizer Industry Contamination by Sanders, L. M., Luiz-Silva, W., Machado, W., Sanders, C. J., Marotta, H., Enrich-Prast, A., Bosco-Santos, A., Boden, A., Silva-Filho, E. V., Santos, I. R., Patchineelam, S. R.

“…Site-specific contamination related to fertilizer industry activity was demonstrated by light rare earth element (REE) anomalies (sum of La, Ce, Pr, Nd, Sm,…”
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Eutrophication history of Guanabara Bay (SE Brazil) recorded by phosphorus flux to sediments from a degraded mangrove area by Borges, A.C., Sanders, C.J., Santos, H.L.R., Araripe, D.R., Machado, W., Patchineelam, S.R.

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Removal of Zinc from Tidal Water by Sediments of a Mangrove Ecosystem: A Radiotracer Study by Machado, E. C, Machado, W, Bellido, L. F, Patchineelam, S. R, Bellido, A. V. B

“…The removal of ⁶⁵Zn from tidal water by underlaying sediment cores collected in a mangrove forest and a tidal creek that drains this forest in Sepetiba Bay (SE…”
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Coupled anthropogenic anomalies of radionuclides and major elements in estuarine sediments by Machado, W., Luiz-Silva, W., Sanders, C.J., Patchineelam, S.R.

“…Concentrations of fertilizer industry-derived P (up to 3.4%), Ca (up to 6.1%), 226Ra (up to 744 Bq kg −1) and 210Pb (up to 1317 Bq kg −1) at least one order of…”
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Contrasting mercury and manganese deposition in a mangrove-dominated estuary (Guaratuba Bay, Brazil) by Sanders, C. J., Santos, I. R., Silva-Filho, E. V., Patchineelam, S. R.

“…Sediment cores were taken at seven sites along the mangrove-bound Guaratuba Bay estuary (southern Brazil), with the purpose of assessing conditions controlling…”
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Biogeochemistry of mangrove soil organic matter : a comparison between Rhizophora and Avicennia soils in South-eastern Brazil by LACERDA, L. D, ITTEKKOT, V, PATCHINEELAM, S. R

“…Soil core samples from Rhizophora mangle L. and Avicennia schaueriana Stapf & Leech forests from south-eastern Brazil were analysed for their total organic…”
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Trace and major elements in geological samples from Itingusssú River Basin, Sepetiba Bay––Rio de Janeiro by Araripe, D. R., Bellido, A. V. B., Patchineelam, S. R., Latini, R. M., Bellido, L. F., Fávaro, D. I. T.

“…s The Itingussú drainage basin is situated at 22°44′–22°55′ SL and 44°53′–43°55′ WL, in Coroa-Grande district, Sepetiba Bay, southwest of Rio de Janeiro,…”
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Anthropogenic source assessment of 226Ra and 210Pb in a sediment core from the Cubatão River estuary (SE Brazil) by Sanders, L. M., Sanders, C. J., Luiz-Silva, W., Machado, W., Silva-Filho, E. V., Patchineelam, S. R.

“…A sediment core from an estuarine area receiving drainage from the highly industrialized Cubatão River basin (SE Brazil) showed 226 Ra and 210 Pb activities up…”
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Intertidal mangrove mudflat 240+239Pu signatures, confirming a 210Pb geochronology on the southeastern coast of Brazil by Sanders, C. J., Smoak, J. M., Sanders, L. M., Waters, M. N., Patchineelam, S. R., Ketterer, M. E.

“…A sediment core was taken to determine if sediment accumulation rates could be conducted using 240+239 Pu signatures in the coastal mangrove mudflats of…”
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An assessment of the pollution of heavy metals in Jacarepagua basin, rio de Janeiro, Brazil: A statistical approach by Fernandez, Horst-M., Conti, Luis Fernando C., Patchineelam, Sambasiva R.

“…The paper presents the metal pollution assessment of Jacarepaguá basin rivers and lagoons based on statistical analysis of metal concentration in bottom…”
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Sediment accumulation rates along the inner eastern Brazilian continental shelf by Patchineelam, S. R., Smoak, J. M.

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Intertidal mangrove mudflat [sup.240+239]Pu signatures, confirming a [sup.210]Pb geochronology on the southeastern coast of Brazil by Sanders, C.J, Smoak, J.M, Sanders, L.M, Waters, M.N, Patchineelam, S.R, Ketterer, M.E

“…A sediment core was taken to determine if sediment accumulation rates could be conducted using [sup.240+239]Pu signatures in the coastal mangrove mudflats of…”
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Cesium, manganese and cobalt water–sediment transfer kinetics and diffusion into mangrove sediments inferred by radiotracer experiments by Machado, E. C., Machado, W., Bellido, A. V. B., Bellido, L. F., Patchineelam, S. R.

“…A study on the trace elements transfer from tidal water to mangrove sediments from Guanabara Bay (southeastern Brazil) was performed in laboratory microcosms…”
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Phosphorus fractionation in surface sediments of the Amazon continental shelf by Silveira, I. M. O., Patchineelam, S. R.

“…The aim of this study is to separate various fractions of phosphorus in surface sediments of the Amazon continental shelf and compare them with other areas of…”
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Trace and major elements in rock samples from Itingussú River Basin, Coroa-Grande, Rio de Janeiro by Araripe, D. R., Bellido, L. F., Patchineelam, S. R., Bellido, A. V. B., Guimar?es, M. T., Vasconcellos, M. B. A.

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Sediment accumulation rates along the inner eastern Brazilian continental shelf by Patchineelam, SR, Smoak, J M

“…Box cores were collected close to river mouths along the eastern Brazilian shelf at water depths of 10-30 m. One core was taken from more than 1000 m depth at…”
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Cultural impact on the geochemistry of sediments in jacarepaguá lagoon, Rio de Janeiro, Brazil by Fernandes, Horst Monken, Cardoso, Katia, Godoy, José Marcos de O., Patchineelam, Sambasiva Rao

“…This paper addresses the heavy metal pollution development in Jacarepaguá coastal lagoon, by means of sediment core analysis. Sedimentation rate and sediment…”
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