Rare earth elements (REE) and yttrium in stream waters, stream sediments, and Fe–Mn oxyhydroxides: Fractionation, speciation, and controls over REE+Y patterns in the surface environment

Leybourne, Matthew I.; Johannesson, Karen H.

doi:10.1016/j.gca.2008.09.022

Cited by 246 publications

(100 citation statements)

References 112 publications

(180 reference statements)

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“…The water soluble and/or exchangeable fractions are commonly targeted for studying biogeochemical cycling (e.g. Drouet et al, 2007;Fang et al, 2007;Frei et al, 2009;Leybourne and Johannesson, 2008;Loell et al, 2011;Miller et al, 1993;Poszwa et al, 2000;Tyler, 2004) …”

Section: Estimating Element Bioavailability In Soilmentioning

confidence: 99%

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Ryan

Snoeck

Crowley

et al. 2018

Applied Geochemistry

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Section: Estimating Element Bioavailability In Soilmentioning

confidence: 99%

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Ryan

Snoeck

Crowley

et al. 2018

Applied Geochemistry

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“…Fe and Mn oxides tend to retain up to 70 % of total Ce in soils, and soils rich in these oxides may display a positive Ce-anomaly (Xing &Dudas, 1993 andLeybourne &Johannesson , 2008).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Distribution and fractionation of the rare earth elements in Brazilian soils

Paye

Mello

Mascarenhas

et al. 2016

Journal of Geochemical Exploration

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The distribution and fractionation of Sc, Y and 14 rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) were investigated in 144 samples (topsoil and subsoil) from 88 sites distributed across Brazil. Although, a wide range of natural variability in REE content was observed, overall the REE median contents were relatively low compared with those reported in soils form other parts of the world. The REE contents in Brazilian soils showed significant correlation mainly with Fe, Mn and Ti oxides, as well as organic matter. REE distribution in soils basically depend on the parent material, while fractionation of individual REEs depend on soil characteristics that are partly influenced by pedogenic process. Soils developed from alkaline igneous rocks showed the highest average content of REEs followed by sedimentary rocks, unconsolidated clay sediments, metamorphic rocks, basic igneous rocks, unconsolidated sand and silt sediments, and acid igneous rocks. REE normalized patterns varied significantly within each geological formation, except for soils derived from alkaline igneous rocks. The greatest variations were observed in the light REEs. Graphic inspection using exploratory data analysis tools such as Q-Q normal plots and boxplots was effective to recognize patterns and identify different data groups, determine threshold values and thus define the range of the background REE variability. The data set generated in this study may be used as a preliminary reference for regulatory actions in the Brazilian environmental legislation.

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“…The Eu anom aly in the ex am ined stream wa ters was highly vari able and Eu/Eu * NASC ra tios var ied from 0.92 to 29.70 with a (Leybourne and Johannesson, 2008). These au thors also sug gest that Eu is rel a tively more mo bile com pared to other REE and is more eas ily re leased from min er als and rocks.…”

Section: Europium Positive Anomaly In Gd-un Con Tam I Nated Riversmentioning

confidence: 82%

“…0.253 µg/L) were found in about 500 circumneutral pH stream wa ters of East ern Can ada (Leybourne and Johannesson, 2008). For com par i son, Gd and Eu con cen tra tions were in the range of 0.001 to 0.026 µg/L (mean of 0.006 µg/L) and 0.001 to 0.024 µg/L (exclud ing an out lier of 0.110 µg/L), re spec tively.…”

Section: Geochemistry Of Watersmentioning

confidence: 95%

The use of gadolinium and europium concentrations as contaminant tracers in the Nida River watershed in south-central Poland

Migaszewski

Gałuszka

2015

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1 Jan Kochanowski Uni ver sity, Fac ulty of Math e mat ics and Nat u ral Sci ences, OEwiêtokrzyska 15G, 25-406 Kielce, Po land Migaszewski, Z.M., Ga³uszka, A., 2016. The use of gad o lin ium and eu ro pium con cen tra tions as con tam i nant trac ers in the Nida River wa ter shed in south-cen tral Po land. Geo log i cal Quar terly, 60 (1): 67-76, doi: 10.7306/gq.1241 This pa per pres ents the re sults of rare earth el e ment (REE) de ter mi na tions in the Nowiny wastewater treat ment plant (NWWTP) effluents and Nida River sys tem wa ters of the south east ern Kielce Re gion (south-cen tral Po land). Of the REE exam ined, gad o lin ium and eu ro pium turned out to be very use ful for pin point ing anthropogenic and geogenic sources. Anthropogenic gad o lin ium (Gd anth ), used as a con trast ing agent in mag netic res o nance im ag ing (MRI), is re leased from the NWWTP into the river drain age sys tem. This micropollutant is traced down stream over the dis tance of about 15 km. This river stretch is char ac ter ized by a strong pos i tive NASC-nor mal ized Gd anth anom aly with the Gd NASC /Gd NASC * ra tio above 1.1 (1.80-15.57) and the Gd anth in put vary ing from 44 to 94%. Two ad di tional pos i tive Gd anth anom a lies re corded in the rivers Bobrza and Nida point out to mix ing of effluents de rived from the NWWTP and other lo cal wastewater treat ment plants. In con trast, the Gd anth -un con tam i nated wa ters up stream, or down stream far away from the NWWTP dis play a dis tinct pos i tive NASC-nor mal ized Eu anom aly high lighted by a high Eu/Eu* ra tio in the range of 2.87 to 29.70. The lack of Gd anth anom aly upstream from the NWWTP also in di cates that there is no leak age of mu nic i pal sew age from the san i tary col lec tor sewer into the Silnica River. Thus Gd as a con tam i nant may be ef fec tively used as a tracer in sim i lar pol lu tion stud ies be cause it is rel atively sim ple and cost-ef fec tive to dis crim i nate be tween con tam i nant con cen tra tions and nor mal back ground con cen tra tions. Key words: rare earth el e ments, wastewater ef flu ent, Nida River drain age sys tem, anthropogenic gad o lin ium, geogenic euro pium.

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Rare earth elements (REE) and yttrium in stream waters, stream sediments, and Fe–Mn oxyhydroxides: Fractionation, speciation, and controls over REE+Y patterns in the surface environment

Cited by 246 publications

References 112 publications

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

87Sr/86Sr and trace element mapping of geosphere-hydrosphere-biosphere interactions: A case study in Ireland

Distribution and fractionation of the rare earth elements in Brazilian soils

The use of gadolinium and europium concentrations as contaminant tracers in the Nida River watershed in south-central Poland

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