Lead isotope trends and metal sources in the Mississippi Valley-type districts from the mid-continent United States

Potra, Adriana; Garmon, William Travis; Samuelsen, John R.; Wulff, Andrew; Pollock, Erik D.

doi:10.1016/j.gexplo.2018.07.002

Cited by 14 publications

(6 citation statements)

References 44 publications

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“…Studies show that the highest concentrations of Zn, Cd, and Pb in purple moorgrass tissues were found in zone I, which is closest to the tailing landfill. Similar correlations confirming the impact of the distance from the tailing landfill on trace element content in plants were reported by Potra et al [28]. Further studies by Karna and Hettiarachchi [35] and Karbowska et al [5], indicate that the concentration of heavy metals in the soil and their uptake by plants largely depends on the distance from the emitter.…”

Section: Discussionsupporting

confidence: 83%

“…Lead content in the investigated forest area reached the maximum value in zone S, where it amounted to 2696.3 mg • kg -1 dry weight of the soil. Lead content in the soil reported in this study was slightly lower than that reported by Potra et al [28] for contaminated soils in the Olkusz area, which was 2936 mg • kg -1 dry weight of the soil. According to Pająk et al [30] in the area of nonferrous metal works in Olkusz, the maximum lead content in cultivated soils was about 421 mg • kg -1 dry weight of the soil and was much lower compared to the amount in zone S of the analysed area.…”

Section: Discussioncontrasting

confidence: 76%

“…The lowest concentration of zinc, cadmium and lead was observed in zone III, most distant from the tailing landfill (over 300 m) which indicated lower impact of dust, eolian and water erosion. The impact of distance from the tailing landfill on contamination of the adjacent soils has also been confirmed by Potra et al [28].…”

Section: Discussionsupporting

confidence: 52%

“…the impact of the tailing landfill (dust fall) and coating with tailing sediment. Contamination of soils with several metals at the same time is very typical of areas affected by industrial immission, therefore even the lowest content of one metal exceeding the allowable content qualifies such soil as contaminated [4,18,28]. In the investigated area, cadmium was the most frequent contaminant.…”

Section: Discussionmentioning

confidence: 87%

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Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill

et al. 2018

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The paper presents concentrations and correlations between Zn, Cd and Pb in the aboveground parts of purple moor-grass (Molinia caerulea L.) in forest soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill at Mining & Metallurgy Enterprise “Bolesław” SA in Bukowno. Field observations have indicated that purple moor-grass, which occurs as one of the few vascular plants in locations with tailing mud, is probably a species with high adaptability to conditions in contaminated environments. The research was carried out in a network of 20 regular monitoring sites. At these sites, a detailed inventory of purple moor-grass was carried out and samples of the aboveground parts of the plants were collected from the leaves and ears and from the soil at a depth of 0-20 cm. It was found that there was no significant correlation between the concentration of heavy metals in the soils and aboveground parts of the plants in the most heavily contaminated zones. This may indicate the existence of mechanisms limiting uptake of heavy metals by this species, and therefore the need for further research in the context of its suitability for biological regeneration of tailing landfills and phytosanitary protection of adjoining areas.

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Section: Discussionsupporting

confidence: 83%

Section: Discussioncontrasting

confidence: 76%

Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 87%

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Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill

et al. 2018

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“…Fluid flow through confined aquifers in the Ouachita Mountains and the Ozark Plateaus is very likely. Available Pb isotopic data for samples of sphalerite ore from the Northern Arkansas and Tri-State Mining districts [9,28] and for various rock units [9][10][11][12][13][14] have been incorporated into this study for a comprehensive understanding of the MVT ores.…”

Section: Introductionmentioning

confidence: 99%

Radiogenic Pb Enrichment of Mississippi Valley-Type Metallic Ore Deposits, Southern Ozarks: Constraints Based on Geochemical Studies of Source Rocks and Their Diagenetic History

et al. 2021

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Southern Ozark Mississippi Valley-type ores are enriched in radiogenic Pb, with isotopic signatures suggesting that metals were supplied by two end-member components. While the less radiogenic component appears to be derived from various shale and sandstone units, the source of the more radiogenic component has not yet been identified. Analyses of cherts from the Early Ordovician Cotter Dolomite and tripolitic chert from the Early Mississippian Boone Formation contain highly radiogenic Pb, with isotopic ratios comparable to those of ores. However, most samples have lower 208Pb/204Pb and 207Pb/204Pb for a given 206Pb/204Pb compared to ores. These relationships demonstrate that the enriched Pb isotopic values of the ore array cannot be related to the host and regional lithologies sampled, suggesting that the source of high ratios may lay further afield. The slope of the linear trend defined by the Pb isotope ratios of ores corresponds to an age of about 1.19 Ga. Therefore, an alternative for the linear array is the involvement of Precambrian basement in supplying ore Pb. Rare earth element patterns show that diagenetic processes involving the action of groundwater and hydrothermal fluids affected the sampled lithologies to various degrees, with Cotter Dolomite having experienced the highest degree of alteration.

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North African Mississippi Valley‐Type Deposit and Its Link with the Alpine Chain Evolution

BOUABDELLAH

2023

Metallic Resources 2

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Lead isotope trends and metal sources in the Mississippi Valley-type districts from the mid-continent United States

Cited by 14 publications

References 44 publications

Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill

Content of Zn, Cd and Pb in purple moor-grass in soils heavily contaminated with heavy metals around a zinc and lead ore tailing landfill

Radiogenic Pb Enrichment of Mississippi Valley-Type Metallic Ore Deposits, Southern Ozarks: Constraints Based on Geochemical Studies of Source Rocks and Their Diagenetic History

North African Mississippi Valley‐Type Deposit and Its Link with the Alpine Chain Evolution

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