Origin of the anomalies in light and middle REE in sediments of an estuary affected by phosphogypsum wastes (south-western Spain)

Borrego, J.; López-González, N.; Carro, B.; Lozano-Soria, O.

doi:10.1016/j.marpolbul.2004.07.009

Cited by 67 publications

(49 citation statements)

References 23 publications

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“…REEs are useful for interpretation of diagenetic redox conditions in palaeoenvironmnental research (Shields and Stille, 2001), monitoring detrital sediment sources (Grousset et al, 1998), and elucidating seawater circulation patterns (Tachikawa et al, 1999), hydrothermal fluxes (German et al, 1999), and the historic oxygenation of the oceans (Henderson, 1984;Murray et al, 1992). They are also important tools for identifying anthropogenic effects on intertidal sediment, especially those caused by unnatural liquid or solid inputs which modify the geochemical characteristics of the sediment (Borrego et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture

Zhang

Gao

Chen

2014

Ecotoxicology and Environmental Safety

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a b s t r a c tSurface sediments from intertidal Bohai Bay were assessed using a four-step sequential extraction procedure to determine their concentrations of rare earth elements (REEs) and the chemical forms in which those elements were present. The normalized ratios La/Gd and La/Yb showed that LREE contents were not significantly higher than the middle REEs or HREE contents. A negative Ce anomaly and positive Eu were observed in sand and silty sand sediments, whereas no significant Ce or Eu anomaly was found in clayey silt sediments. Residual fraction of REEs accounted for the majority of their total concentrations. Middle REEs were more easily leached than other REEs, especially in clayey silt sediment. REEs contents in the surface sediment from the intertidal Bohai Sea were consistent with data from the upper continental crust and China shallow sea sediments, indicating that they were generally unaffected by heavily anthropogenic effects from adjacent areas.

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Section: Introductionmentioning

confidence: 99%

Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture

Zhang

Gao

Chen

2014

Ecotoxicology and Environmental Safety

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“…1215-1227 c Indian Academy of Sciences in petroleum cracking catalysis, for the production of light weight hydrocarbons such as gasoline and fuel oil (Olmez et al 1991). High concentrations of REEs were reported by Borrego et al (2004) in Tinto and Odiel estuaries in Spain, due to the waste from the fertilizer industries. Dudas and Pawluk (1977) found high concentrations of heavy metals and REEs in cultivated soils and in cereal crops of Alberts, Canada.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of REEs in a tropical estuary and adjacent continental shelf of southwest coast of India: Evidence from anomalies

2012

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The distribution and accumulation of the rare earth elements (REE) in the sediments of the Cochin Estuary and adjacent continental shelf were investigated. The rare earth elements like La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and the heavy metals like Mg, V, Cr, Mn, Fe, Cu, Zn, U, Th were analysed by using standard analytical methods. The Post-Archean Australian Shale composition was used to normalise the rare earth elements. It was found that the sediments were more enriched with the lighter rare earth elements than the heavier ones. The positive correlation between the concentrations of REE, Fe and Mn could explain the precipitation of oxyhydroxides in the study area. The factor analysis and correlation analysis suggest common sources of origin for the REEs. From the Ce-anomalies calculated, it was found that an oxic environment predominates in all stations except the station No. 2. The Eu-anomaly gave an idea that the origin of REEs may be from the feldspar. The parameters like total organic carbon, U/Th ratio, authigenic U, Cu/Zn, V/Cr ratios revealed the oxic environment and thus the depositional behaviour of REEs in the region.

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“…The Ag and Cu are mostly dispersed by winds, and they have not been exposed to acid dissolution that is often experienced in temperate systems with low-pH water (Borrego et al, 2004). Moreover, the Cu content was lower in this arid system than in other systems affected by Ag and Au mines, such as the sediments of the Leichhardt River, Australia (Taylor and Hudson-Edwards, 2008) and sediments of the Vaal River (Blesbokspruit, South Africa; Roychoudhury and Starke, 2006), where Cu and Ni are significantly enriched.…”

Section: Arroyo Sediments (Transport Of Elements)mentioning

confidence: 88%

Sediment accumulation of Ag, Cu, and Ni through a semi-arid basin as a by-product of the El Triunfo gold mine, Baja California Sur, Mexico.

Marmolejo-Rodríguez

Millán-Gómez

Sánchez-González

2013

Journal of Iberian Geology

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Origin of the anomalies in light and middle REE in sediments of an estuary affected by phosphogypsum wastes (south-western Spain)

Cited by 67 publications

References 23 publications

Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture

Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture

Behaviour of REEs in a tropical estuary and adjacent continental shelf of southwest coast of India: Evidence from anomalies

Sediment accumulation of Ag, Cu, and Ni through a semi-arid basin as a by-product of the El Triunfo gold mine, Baja California Sur, Mexico.

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