Galena weathering under simulated calcareous soil conditions

Lara, René H.; Briones, Roberto; Monroy, Marcos; Mullet, Martine; Humbert, Bernard; Dossot, Manuel; Naja, Ghinwa; Cruz, Roel

doi:10.1016/j.scitotenv.2011.06.055

Cited by 19 publications

(14 citation statements)

References 40 publications

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“…On the other hand, it can be suggested that the cerussite in the S.76 yellow glaze most probably has a secondary origin as a weathering product of galena (Lara et al . ) because, as previously explained, the glaze was severely weathered due to soluble carbonates.…”

Section: Resultsmentioning

confidence: 58%

A Technological Study of the Elamite Polychrome Glazed Bricks at Susa, South‐Western Iran

Holakooei

2013

Archaeometry

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This study investigated the technological features of the Neo-Elamite glazed bricks discovered at the Acropolis of Susa, south-western Iran, by conducting micro-Raman spectroscopy, differential thermal analysis/thermogravimetry (DTA/TG), X-ray diffraction (XRD) and scanning electron microscopy–energy-dispersive X-ray spectroscopy (SEM–EDS). The results showed that calcium antimonate white and lead antimonate yellow were used as opacifiers in the white, yellow and green glazes, and that green and turquoise glazes were achieved using copper. Coloured glazes were separated by a Si-rich brown glaze to prevent them from running together during firing. The glazed bricks most probably were not fired at temperatures higher than 900°C

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Section: Resultsmentioning

confidence: 58%

A Technological Study of the Elamite Polychrome Glazed Bricks at Susa, South‐Western Iran

Holakooei

2013

Archaeometry

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“…4). During sulphide weathering in calcareous soils, PbS is first oxidized to anglesite (PbSO 4 )-like phases that are subsequently converted into cerussite (PbCO 3 )-like phases (Lara et al 2011). However, cerussite is the most mobile and bioavailable lead phase in soils, and about 40 years after liming, this mineral must have been removed from soil.…”

Section: The Ph and Element Concentrations Of Soilsmentioning

confidence: 99%

Geochemical background of potentially toxic trace elements in reclaimed soils of the abandoned pyrite–uranium mine (south-central Poland)

Gałuszka

Migaszewski

Duczmal-Czernikiewicz

et al. 2016

Int. J. Environ. Sci. Technol.

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Spatial distribution patterns of As, Ba, Cd, Cr, Cu, Mn, Ni, Pb, U and Zn were determined in topsoil samples collected after 40 years of chemical remediation conducted in the inoperative ''Staszic'' pyrite-uranium mine in the Holy Cross Mountains, south-central Poland. Soil samples were taken from 58 sites using a systematic random sampling design. Selected samples were subjected to an X-ray diffractometry analysis on bulk soils and separated clay fractions. Hematite, goethite and gypsum are common mineral phases in soil samples. Technogenic soils developed on reclaimed mine spoils show uniform spatial element distribution patterns and additionally a distinct enrichment in As, Pb, Mn, U and Zn. Mineral and chemical composition of soils vs. rocks points to the lithogenic source of the determined elements. The results of chemical analysis have been used for evaluation of geochemical background of trace elements in the study area with the iterative 2r-technique. This investigation shows that using mean crustal element concentrations (Clarke values) as proxies of threshold values in soils are not useful for determination of strongly positive geochemical anomalies. A modified enrichment factor, i.e. a local enrichment factor, is proposed for identification of sites where soils are contaminated.

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“…In contrast, significant mobility of Pb under our experimental conditions seems difficult due to pH effect. The Pb-bearing phases solubility is typically considered low at pH *8.0 in almost all systems (Badawy et al 2002;Stumm and Morgan 2012) and, therefore, progressive Pb accumulation in soils due to coprecipitation or other reactions seems feasible in the study area (Kempton and Atkins 2000), as shown above (Pb values above 100 mg kg -1 , Fig. 5b).…”

Section: Total and Bioaccessible Concentration Of As And Pb In Soilmentioning

confidence: 67%

“…These solutions lead to the formation of bioaccessible/bioavailable metalbearing phases (e.g., PbSO 4 , PbCO 3 ) or metals sorbed to organic matter in polluted soils (Denys et al 2007;AlAbed et al 2007;García-Meza et al 2011;Lara et al 2011). Scientific studies in the Durango area have dealt with prospective geological studies (e.g., Barton et al 2000;Alva-Valdivia et al 2001;Boyce and Hodges 2005).…”

Section: Introductionmentioning

confidence: 99%

Total and bioaccessible arsenic and lead in soils impacted by mining exploitation of Fe-oxide-rich ore deposit at Cerro de Mercado, Durango, Mexico

et al. 2014

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Total and bioaccessible concentrations of arsenic (As) and lead (Pb), as well as their bearing phases in the adjacent soil area (residential area) of the historic and active Fe-oxide-rich mining district of Cerro de Mercado, Durango (Mexico), were evaluated. Results indicated the presence of arsenopyrite, galena, and As-bearing phases in ultrafine (\10 lm), fine (10-20 lm) and large (20-80 lm) particle sizes. Total concentrations ranged from 55 to 221 mg kg -1 As, near active and old tailings impoundments, exceeding 2.5-10 times the US EPA and ATSDR trigger level for residential soil remediation (20 mg kg -1 ). The corresponding bioaccessible fractions ranged from 0.7 to 18 %. Analyses by ATR-FTIR showed the presence of As sorbed onto iron-oxide-rich materials. Total Pb concentrations ranged from 22.3 to 107 mg kg -1 , below the US EPA trigger level (400 mg kg -1 ). The corresponding bioaccessible fractions ranged from 2.1 to 16 %. Total and bioaccessible results indicated that further studies of As are required whereas Pb bioaccessibility values were under the reference concentrations established by Mexican guidelines for implementing a remediation strategy, suggesting that environmental impact occurs mainly for As. Arsenic and Pb dispersion from their pollution sources (historic and active tailing impoundments, waste rock dumps), was mainly associated with airborne particles transport in SW-NE direction impacting the adjacent soil area at the Cerro de Mercado mining district. Finally, an environmental impact assessment should be done in the studied area.

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Galena weathering under simulated calcareous soil conditions

Cited by 19 publications

References 40 publications

A Technological Study of the Elamite Polychrome Glazed Bricks at Susa, South‐Western Iran

A Technological Study of the Elamite Polychrome Glazed Bricks at Susa, South‐Western Iran

Geochemical background of potentially toxic trace elements in reclaimed soils of the abandoned pyrite–uranium mine (south-central Poland)

Total and bioaccessible arsenic and lead in soils impacted by mining exploitation of Fe-oxide-rich ore deposit at Cerro de Mercado, Durango, Mexico

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