"tailings samples surficial"

Geochemistry of thallium in lead-zinc tailings

Samples of tailings were collected from the surface (0–100 mm) at 16 locations within the TSF and analysed ... Na, Pb, S, Sb, Se, Tl and Zn. A summary of the results for the analysis of surficial tailings (0–100 mm) for selected analytes is presented in Table 3. Table 3 Results for analysis of water leachates of surface tailings Analyte ...

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Surficial geologic maps along the riparian zone of ...

2019-12-5 · Surficial geologic maps along the riparian zone of the ... Photograph of fluvial mill tailings, upper Animas River, and geochemical profile 7. Photograph of overbank deposits along the Animas River at Elk Park, and geochemical profile ... indicated in blue) for examples of surficial

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Factors affecting methylmercury distribution in surficial ...

2008-3-25 · Factors affecting methylmercury distribution in surficial, acidic, base-metal mine tailings. Winch S(1), Praharaj T, Fortin D, Lean DR. Author information: (1)Department of Earth Science, University of Ottawa, Marion Hall, 140 Louis Pasteur, Ottawa, ON, Canada K1N 6N5. [email protected]

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Environmental Chemistry

2019-3-20 · Samples collected included big tailings (a surficial grab sample and a 60 cm core), flat tailings (4 grab samples at a variety of depths and a 120 cm core), surficial sediments (0–2 cm depth, collected from 8.0, 8.1, and 22 km downstream of the tailings piles), and an off-site control collected 1.8 km to the NW of the tailings.

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Uranium in Different Samples from Eastern Macedonia – A ...

2020-4-2 · Surficial weathering of iron sulfide mine tailings under semi-arid ... Transformation is nearly complete in surficial samples. Trends in molecular-scale alteration were co-located with a decrease in pH from 7.3 to 2.3, and shifts in Fe and S lability as measured via chemical extraction. Initial weathering

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Impact of Pb-Zn mining activity on surficial sediments of ...

in eastern Macedonia, with part of the Sasa mine tailings dam collapsing and causing an intensive flow of tailings through the Kamenica valley. Between 70,000 and 100,000 m3 of tailings material was discharged into Lake Kalimanci, causing significant ecological damage. 2.3. Sampling methods Seven surface sediment samples were collected from Lake

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Surficial weathering of iron sulfide mine ...

2014-9-15 · The IKMHSS tailings weathering profile was collected by excavating a pit to ca. 1 m to expose the redox boundary between oxic and sulfide-stable tailings. Samples were collected and composited across the pit faces for discrete depth intervals on the basis of morphological transitions (color, consistency, Fig. 1B).

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A Geometallurgical Approach to Tailings Management: An ...

At the Old Tailings Dam (OTD), Savage River, Western Tasmania, 38 Mt of pyritic tailings were deposited (1967 to 1982) and have since been generating acid and metalliferous drainage (AMD). Mineral chemistry analysis confirmed high concentrations of refractory cobalt in pyrite (up to 3 wt %). This study sought to determine, through a series of bench scale tests, if Co could be liberated using ...

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Mobility and accessibility of Zn, Pb, and As in abandoned ...

2020-5-6 · Zinc presented higher variability in surficial samples of both tailings, probably caused by sorption processes in surficial environments. Average concentrations of Zn, Pb, and As in agricultural soils suggested a high potential of both ecologic and health risks. SEP results indicated that Zn was mainly present in mobile forms, suggesting that ...

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Surficial weathering of iron sulfide mine ...

The IKMHSS tailings weathering profile was collected by excavating a pit to ca. 1 m to expose the redox boundary between oxic and sulfide-stable tailings. Samples were collected and composited across the pit faces for discrete depth intervals on the basis of morphological transitions (color, consistency, Fig 1B).

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Table A-1: Process Tailings Fluids, Water Soluble Metals ...

2021-1-4 · Sample ID EC pH HC O 3 4 CO 3 OH Tota l Alk Cl SO Cl:S O 4 F NO 3-N mS/c m - mg CaCO 3/kg mg/ kg mg/ kg - mg/ kg mg /kg Slimes Surficial 3.89 7.7 94 <5 <5 94 4,564 3,177 1.44 4 39 Slimes 300 mm 2.60 7.8 104 <5 <5 104 2,171 3,673 0.59 8 21 Sand Surficial 0.37 7.8 …

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Geochemical weathering increases lead bioaccessibility in ...

2012-5-18 · Anglesite, the most bioavailable mineral species of lead identified in this study, was enriched in surficial tailings samples, where Pb concentrations in the clay size fraction were 2–3 times higher by mass relative to bulk. A mobile and bioaccessible Pb phase accumulates in surficial tailings, with a corresponding increase in risk of human ...

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Surficial weathering of iron sulfide mine tailings under ...

In sulfide-rich ore tailings, propagation to depth of the oxidative weathering front controls the depth-variation in speciation of major and trace elements. Despite the prevalence of surficial mine waste deposits in arid regions of the globe, few prior studies have been conducted to resolve the near-surface profile of sulfide ore tailings ...

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HIGH GRADE GOLD TAILINGS INTERSECTED ...

2015-3-20 · 1m long samples are well suited for estimation resources of the mineralised tailings Samples quality was assured by adjusting the drilling parameters for peters Obtained samples were weighted in the lab which was used as non-direct control of a possible sample losses Aspects of the determination of

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Tailings Storage Facility Conceptual Closure Plan ...

2016-2-4 · Tailings Storage Facility Conceptual Closure Plan Alternatives Assessment . ... The removal of the supernatant pond will allow the surficial layer of high fines tailings beneath ... settlement testing of high fines tailings based on site specific tailings samples has …

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The Investigation of an Alternative Tailings Deposition ...

2020-3-25 · JEB/Sue Tailings PSD. Cigar Lake Tailings PSD (2015-2016) 0 10 20 30 40 50 60 70 80 90 100 100 10 1 0.1 0.01 0.001 Percent Passing (%) Grain Size Diameter (mm) Jeb Pit - Tailings Particle Size Distribution. TMF13-01 SA18A TMF13-02 SA08B TMF13-03 SA03 TMF13-05 SA10 TMF13-06 SA05 TMF13-07 SA08 TMF13-08 SA02 TMF13-09 SA01 TMF13-09 SA03 TMF13-10 ...

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APPENDIX B

2013-4-30 · Surficial tailings water samples will be collected from the following locations: Clarification Canal (sampling site CLC452) – This site will be sampled quarterly and was selected to show the quality of the tailings water as it returns from the top of the Tailings Impoundment. ...

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Geoenvironmental Characterization of Sulfide …

2019-3-5 · Spain has a long mining tradition dating from pre-historic times up to the present day. The cessation of mining activity has generated a large amount of mine wastes, most of which represent geochemical hazards. Mine tailings are watery …

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Surficial weathering of iron sulfide mine ...

Surficial weathering of iron sulfide mine tailings under semi-arid climate. Download. Related Papers. An integrated geochemical and mineralogical approach for the evaluation of arsenic mobility in mining soils. By annibale mottana, Gianfelice Cinque, and Giovanna Armiento.

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CharlestonProceedings--Section B--1404_Smith

Leaching of surficial samples indicates that there is a large reservoir of readily water-soluble material yielding elevated metal concentrations and high acidity that could degrade water quality. However, the river-water-quality data indicate that there is no measurable effect from the fluvial tailings deposit.

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Uranium in Different Samples from Eastern Macedonia – A ...

2014-1-1 · Materials and methods 2.1 Sampling and sample preparation Six surficial samples from the Sasa tailings dam were taken in October 2003. The surfaicial samples were collected in plastic bags and stored in the laboratory at 4 o C. The samples were dried at 50 o C for 48 hours. They were than sieved through a 0.315 mm polyethylene sieve and ...

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The distribution of Rare Earth Elements (REE) in surficial ...

2012-10-28 · dam collapsed and caused an intensive flow of tailings dam material through the Kamenica valley. Between 70,000 and 100,000 m 3 of tailings dam material was discharged into Lake Kalimanci, causing significant ecological damage (Rogan Šmuc, et al., 2009). Sampling methods 17 surficial sediment samples from Lake Kalimanci were

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Geochemical interactions between ...

2011-1-25 · Process-affected water was collected from a discharge line feeding directly into the South Tailings Pond. Samples were collected August 25, 2008 and stored sealed, in the dark, at 4 °C. In addition, a simplified synthetic or simulated process-affected water was created, based upon the chemical composition of STP process-affected water averaged ...

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PubMed

Digital elevation models of abandoned tailings were obtained using photogrammetry with UAV. A total of 37 surficial samples were collected from mine tailings to determine elemental concentrations (As, Cu, Pb, W, Zn) using portable X-ray fluorescence. Higher concentrations were …

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6 Seepage Assessment for Tailings Storage Facilities ...

2021-10-1 · 6 Seepage Assessment for Tailings Storage Facilities. An assessment of the quantity of seepage from a tailings facility, both during operations and in closure, requires insight to the hydraulic properties of the deposited tailings, pond geometry, recharge rates on exposed beaches in the facility, structure of the dam and its seepage control ...

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Factors affecting methylmercury distribution in surficial ...

2008-3-25 · Tailings were sampled from three abandoned tailings dump sites (Kam Kotia, Broulan and Potter), and one operational metallurgical facility (Kidd Metallurgical Division) in August, 2004 ().Sampling was limited to the surficial layers of the tailings, just above the water table. 50 mL polypropylene Falcon tubes were used to collect tailings from sampling pits at 5 cm intervals up to ~ 40 cm depth.

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Geochemical Stability of Oil Sands Tailings in Mine ...

Oil sands surface mining in Alberta has generated over a billion cubic metres of waste, known as tailings, consisting of sands, silts, clays, and process-affected water that contains toxic organic compounds and chemical constituents. All of these tailings will eventually be reclaimed and integrated into one of two types of mine closure landforms: end pit lakes (EPLs) or terrestrial landforms ...

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Surficial weathering of iron sulfide mine tailings under ...

2020-4-2 · Surficial weathering of iron sulfide mine tailings under semi-arid ... Transformation is nearly complete in surficial samples. Trends in molecular-scale alteration were co-located with a decrease in pH from 7.3 to 2.3, and shifts in Fe and S lability as measured via chemical extraction. Initial weathering

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APPENDIX 5-1 Waste Characterisation Report

2021-1-4 · Tailings Characterisation There will be three tailings streams generated from processing of the ore. Bench scale tailings have been produced and these have undergone preliminary characterisation. Further analysis of more representative pilot plant batches is to …

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Surficial geochemistry and bioaccessibility ...

PDF | Tellurium (Te) is a critical element owing to its use in solar technology. However, some forms are highly toxic. Few studies have examined Te... | Find, read and cite all the research you ...

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