Clay minerals control rare earth elements (REE) fractionation in Brazilian mangrove soils

Andrade, Gabriel Ramatis Pugliese; Cuadros, Javier; Barbosa, Jorge Marcos Peniche; Vidal‐Torrado, Pablo

doi:10.1016/j.catena.2021.105855

Cited by 25 publications

(14 citation statements)

References 78 publications

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“…Fractionation of REEs has also been defined by some authors using a scale of 1; a ratio equal to 1 was stated to be an indication of no fraction, whereas a ratio < 1 indicates depletion, and a ratio > 1 implies enrichment of REEs [ 12 , 35 ]. In support of the aforementioned, multi-elemental ratios R(M/L) and R(H/M) with positive and negative values signify fractionation patterns enriched with lighter rare earth elements (MREEs and LREEs), and depletion of HREEs [ 36 , 37 ]. In another study, in the Pichavaram mangrove ecosystem, similar findings were reported on REE fractionation, with an insight into higher concentrations of lighter REEs being linked to clay-silt sediment composition in the mangrove ecosystem [ 37 , 38 ].…”

Section: Discussionmentioning

confidence: 95%

“…In support of the aforementioned, multi-elemental ratios R(M/L) and R(H/M) with positive and negative values signify fractionation patterns enriched with lighter rare earth elements (MREEs and LREEs), and depletion of HREEs [ 36 , 37 ]. In another study, in the Pichavaram mangrove ecosystem, similar findings were reported on REE fractionation, with an insight into higher concentrations of lighter REEs being linked to clay-silt sediment composition in the mangrove ecosystem [ 37 , 38 ]. This was supported by the positive correlation (r = 0.58) between the clay silt grain size type and the lighter REEs.…”

Section: Discussionmentioning

confidence: 95%

“…Nonetheless, it is critical to note that deposition of sediment in a high-sediment regime and rapid burial could lead to a reduced time frame of exposure to REEs in dissolved form with sediment. This causes a restriction in the capacity of adsorption of the sediment and the possibility of REE depletion, leading to dissimilarities in concentrations of REEs in mangrove sediment [ 11 , 37 ].…”

Section: Discussionmentioning

confidence: 99%

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Rare Earth Elements and Bioavailability in Northern and Southern Central Red Sea Mangroves, Saudi Arabia

Aljahdali

Alhassan

2022

Molecules

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Different hypotheses have been tested about the fractionation and bioavailability of rare earth elements (REE) in mangrove ecosystems. Rare earth elements and bioavailability in the mangrove ecosystem have been of significant concern and are recognized globally as emerging pollutants. Bioavailability and fractionation of rare earth elements were assessed in Jazan and AlWajah mangrove ecosystems. Comparisons between rare earth elements, multi-elemental ratios, geo-accumulation index (Igeo), and bio-concentration factor (BCF) for the two mangroves and the influence of sediment grain size types on concentrations of rare earth elements were carried out. A substantial difference in mean concentrations (mg/kg) of REE (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) was established, except for mean concentrations of Eu, Gd, Tb, Tm, and Lu. In addition, concentrations of REEs were higher in the Jazan mangrove ecosystem. However, REE composition in the two mangroves was dominated by the lighter REE (LREE and MREE), and formed the major contribution to the total sum of REE at 10.2–78.4%, which was greater than the HREE contribution of 11.3–12.9%. The Post Archean Australian Shale (PAAS) normalized values revealed that lighter REE (LREE and MREE) were steadily enriched above heavy REE. More so, low and negative values of R(H/M) were recorded in the Al Wajah mangrove, indicating higher HREE depletion there. The values of BCF for REEs were less than 1 for all the REEs determined; the recorded BCF for Lu (0.33) and Tm (0.32) were the highest, while the lowest BCF recorded was for Nd (0.09). There is a need for periodic monitoring of REE concentrations in the mangroves to keep track of the sources of this metal contamination and develop conservation and control strategies for these important ecosystems.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

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Rare Earth Elements and Bioavailability in Northern and Southern Central Red Sea Mangroves, Saudi Arabia

Aljahdali

Alhassan

2022

Molecules

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“…Chemical weathering influences the abundance and behavior of rare earth elements (Casse et al, 2019). Clay minerals, one of the major host minerals of rare earth elements, are created in large quantities during chemical weathering, affecting the enrichment and migration of rare earth elements (Yang et al, 2019;Andrade et al, 2022).…”

Section: Chemical Weathering On Rare Earth Elements Behavioursmentioning

confidence: 99%

“…During the formation of the paleosol, the warm and humid climatic conditions enhanced the mobility of the rare earth elements, and the active rare earth elements were enriched and preserved by simultaneously composing complex ions linked to other stable matter in the form of hydroxyl or heteronuclear multiple complex associations. This resulted in intense leaching of carbonate, which led to the relative enrichment of the rare earth elements component (Zhang et al, 2009;Andrade et al, 2022). Minor differences exist between the loess and paleosol in the Menyuan Basin, reflecting poor pedogenesis by weathering in the survey region.…”

Section: Chemical Weathering On Rare Earth Elements Behavioursmentioning

confidence: 99%

Rare earth elements in aeolian loess sediments from Menyuan Basin, northeastern Tibetan plateau: Implications for provenance

Chongyi¹,

Peng²,

Zhang³

et al. 2023

Front. Environ. Sci.

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Aeolian loess is a widespread deposit in mid-latitude arid and semiarid regions that has been extensively investigated in arid Central Asia and the Chinese Loess Plateau. The northeastern Tibetan Plateau is crucial to the release, transport, and accumulation of aeolian sediments because of its vast environmental differences, but relatively little research has been conducted on the loess here. To further deepen our understanding of the loess source in this region, we selected the Menyuan Basin as the study area for this loess tracing research. Through our investigation of the indicators and distribution characteristics of rare earth elements in the Yahecun (YHC) loess-paleosol profile of the Menyuan Basin, the following conclusions were drawn: 1) the indices and distribution curves of rare earth elements in the diverse strata of the YHC profile were not significantly distinct and were comparable to those of loess from other locations in northwestern China, revealing a general association with loess in arid northwestern China; 2) the influence of chemical weathering and particle diameter on rare earth elements in the loess of the study area was minimal, and Menyuan loess rare earth elements contained considerable information regarding their source; and 3) a comparison of the (La/Yb)N, δEu, (La/Sm)N, and (Gd/Yb)N parameters of potential source areas indicates that arid Central Asia, dominated by the Qaidam Desert, is the primary source area of the Menyuan loess, and dust particles released from these deserts are transported to the Menyuan Basin by the Westerlies and deposited to form loess. Additionally, the Badain Jaran Desert is an essential source of material for the Menyuan loess by winter winds, and some Tengger Desert materials are also transported to the Menyuan Basin by winter winds, but the material transported from the Tengger Desert has a negligible contribution.

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Geochemical behavior of rare earth elements in agricultural soils along the Syr Darya River within the Aral Sea Basin

Li,

Saparov,

Zeng

et al. 2024

Environ Monit Assess

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Clay minerals control rare earth elements (REE) fractionation in Brazilian mangrove soils

Cited by 25 publications

References 78 publications

Rare Earth Elements and Bioavailability in Northern and Southern Central Red Sea Mangroves, Saudi Arabia

Rare Earth Elements and Bioavailability in Northern and Southern Central Red Sea Mangroves, Saudi Arabia

Rare earth elements in aeolian loess sediments from Menyuan Basin, northeastern Tibetan plateau: Implications for provenance

Geochemical behavior of rare earth elements in agricultural soils along the Syr Darya River within the Aral Sea Basin

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