ICP-OES Method for the Determination of Fe, Co, …
The proposed ICP-OES method was successfully applied to the quantitative analysis of real ore samples containing Fe, Co, Mn, Cu, Pb, and Zn. Good agreement was found for the analytical results of ...
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The Kupferschiefer Cu–Ag ore deposits in Poland: a re …
In the ore bodies, Cu, Ag, Pb, and Zn are significantly above the typical background contents, implying that these metals have been introduced. Metal contents in the RF are within the range of background contents of the Ks, suggesting that the metal source is external to the Ks. The RF–copper zones are coincident with underlying buried ...
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Contrasting regimes of Cu, Zn and Pb transport in ore …
The range in simulated Zn and Pb concentrations of the model fluids compares well with those of natural hydrothermal fluids, suggesting that the model can be used to evaluate hydrothermal ore-forming processes in Nature. The modeling reveals two different modes of Cu, Pb and Zn complexing in sulfur-saturated hydrothermal solutions.
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Gold Royalty Announces Agreement to Acquire Vares …
Silver equivalent (AgEq) –was calculated using conversion factors of 31.1 for Zn, 24.88 for Pb, 80.0 for Au, 1.87 for BaSO4, 80.87 for Cu, 80.87 for Sb, and recoveries of 90% for all elements.
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Evolution of the hydrothermal ore-forming system of Ashele VMS-type Cu
Altai orogenic belt is an important Cu-Pb-Zn-Au-Fe polymetallic province in northwest China, with plenty of VMS deposits and ore resources (Fig. 1 a), which is an ideal place and natural laboratory for studying VMS deposits (Windley et al., 2002, Xiao et al., 2004, Yang et al., 2018b).The Ashele Cu-Zn deposit is the largest and most typical VMS …
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(PDF) Recovery of Lead and Zinc from Zinc Plant Leach …
Concentration of (a) Pb and (b) Zn dissolved in the leaching solution as a function of time when zinc plant leach residues (ZPLRs) were leached without and with zero-valent aluminum (ZVAl). +7
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A review of the geological characteristics and spatiotemporal
The 26 Au–Cu–Pb–Zn orebodies in the ore district occur in the rhyolite porphyry and Ashele Formation tuff beneath the rhyolite porphyry (Fig. 3 a). The L1 orebody is the largest, with a length of 490 m and a thickness of 0.69–81.00 m, and it extends downward to a depth of 485 m. ... Timing of copper–gold ore deposits. Table 1 provides ...
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Ore Geology Reviews
1. Introduction. Skarn deposits are typically developed within or adjacent to hypabyssal intrusions of carbonate rocks (Meinert et al., 2005).They represent an important source of Cu–Fe–Au, Pb–Zn–Ag, and W–Sn globally (Einaudi et al., 1981, Meinert, 1992).Vein-type Pb–Zn ± Ag mineralization commonly develops in the distal zones of …
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Ore-forming material sources of the Jurassic Cu–Pb–Zn …
The Jurassic Cu–Pb–Zn deposits in the Qin–Hang ore belt mainly include the Dexing, Qibaoshan, Shuikoushan, Baoshan, Huangshaping, Tongshanling and Dabaoshan (Table 1).These deposits can be further divided into two sub-types according to their major mineralizing elements: 1) Cu-dominated deposits, including the Dexing, …
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Assessment of vertical contamination of Cd, Pb and Zn in …
Concentrations of trace elements (Cd, Co, Cr, Cu, Ni, Pb and Zn) and major elements (Ca, Mg, K, Fe, Al and Mn) as well as pHKCl and total organic carbon (TOC) were measured on 22 profiles located in a 3 km radius of a former ore treatment plant in Wallonia (Belgium). The enrichment factor (EF), vertical impoverishment factor (VIF) and …
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Genesis of the Huangshaping W–Mo–Cu–Pb–Zn
The Huangshaping polymetallic deposit is located in southeastern Hunan Province, China. It is a world-class W–Mo–Pb–Zn–Cu skarn deposit in the Nanling Range Metallogenic Belt, with estimated reserves of 74.31 Mt of W–Mo ore at 0.28% WO 3 and 0.07% Mo, 22.43 Mt of Pb–Zn ore at 3.6% Pb and 8.00% Zn, and 20.35 Mt of Cu ore at …
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Heavy metals reshaping the structure and function of …
Long-term large-scale ore smelting has caused serious environmental problems, especially over HM load in various habitats for plants and microorganisms. Through our preliminary investigation, it is confirmed that the major HMs posing threats in the area are Cu, Cd, Zn, and Pb (Qian et al., 2022). In all 7 sampling sites, samples …
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Trace- and rare-earth element geochemistry and Pb–Pb
Black shale is an important host for redox-sensitive metals, such as Mo, Ni, V, U, Re, and a number of other metals including Cu, Pb, Zn, Au, Ag, Hg, Sb, etc. in various geological periods and settings (Holland 1979; Coveney et al. 1992; Pasava 1993).Metal-enriched black shale of Early Cambrian age occurs over several thousands of kilometers …
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Nanobubble assisted flotation separation of complex …
Drill core sulfide ore samples (weighing about 60 kg) were received from Garpenberg, Boliden Mineral AB, Sweden. Garpenberg is an underground mine where the complex Zn-Pb-Ag-Cu-Au ore (Table 2) is mined from 500 to 1400 m below the ground. The core samples were initially crushed to
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Geology and C-O-S-Pb isotopes of the Fangyangshan Cu-Pb-Zn …
The Fangyangshan sulfides have relatively narrow ranges of 206 Pb/ 204 Pb (18.2984–19.0819), 207 Pb/ 204 Pb (15.7731–15.8107) and 208 Pb/ 204 Pb (38.6550–39.3092) (Table 4), suggesting that either the lead (and probably other ore metals) were from the same source or the different-sourced lead was homogenized …
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Woodlawn Zn-Pb-Cu sulfide deposit, New South Wales, …
At the start of production in 1978, in situ ore reserves amenable to open-cut mining totaled 6.3 million metric tons of complex ore with an average grade of 1.7 percent Cu, 5.5 percent Pb, 14.4 percent Zn, and 89 ppm Ag, and 3.7 million metric tons of stockwork copper ore averaging 1.9 percent Cu.The deposit occurs in Middle to Upper Silurian ...
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Sulfide remobilization and trace element redistribution …
The Xitieshan Pb–Zn deposit, located in Qinghai Province, western China, is the third largest Pb–Zn deposit in China, with a total Pb–Zn metal reserve of 6.4 million tons.
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Voltammetric Quantification of Zn and Cu, Together with Hg and Pb
The detection limits for Cu, Hg, Pb and Zn, using a vibrating electrode and 30 s of deposition time, were 0.2 µg L −1 for Hg, 0.3 µg L −1 for Pb and 0.4 µg L −1 for Zn and Cu, respectively. The proposed DPASV methods were successfully applied to the determination of Cu, Hg, Pb, and Zn in a certified reference fresh water, river, tap ...
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Accumulation of Cu, Zn, Pb, and Cd in edible parts of four commonly
Soil heavy metal pollution resulting from human activities is causing major concern due to its potential risk. In this study, four crop species with different cultivars were planted in 2 levels (heavily and slightly) of heavy metal contaminated soils, and the accumulation of Cu, Zn, Pb, and Cd in the edible parts of the crops were investigated.
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Determination of contamination sources and geochemical …
A waste rock dump and a tailings dump are present in the northern area, whereas seepages from the adit and goaf are present in the southern area (Fig. 1).Contaminants in the seepages include Al, As, Cd, Cu, Fe, Mn, Pb, and Zn [10], which contaminate the creek in the mine area.Although passive treatment facilities …
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[PDF] Trace-element contents and partitioning of elements in ore …
The Se, Cd, Mn, Sn, Ag, Co and Ni contents of ore minerals from the CSA Cu-Pb-Zn deposit at Cobar, New South Wales, Australia have been determined. The temperature of ore formation and the partitioning of Se, Mn and Cd between sphalerite and galena do not show a correlation; the trace elements in these mineral phases do not seem to indicate …
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Evolution of an ancient VMS ore-forming system recorded
1. Introduction. Volcanogenic massive sulfide (VMS) deposits are one of the most important sources of metals (mainly Cu, Zn, Pb ± Au) in the world (Mercier-Langevin et al., 2011, Hannington, 2014, de Ronde et al., 2019).Metallogenesis of this kind of deposit is often complex and multistage, making it difficult for ore geologists to obtain detailed …
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Nanobubble assisted flotation separation of complex Pb–Cu–Zn …
Drill core sulfide ore samples (weighing about 60 kg) were received from Garpenberg, Boliden Mineral AB, Sweden. Garpenberg is an underground mine where the complex Zn-Pb-Ag-Cu-Au ore (Table 2) is mined from 500 to 1400 m below the ground. The core samples were initially crushed to −3 mm using a laboratory jaw crusher for the …
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Geochemical contrasts between Late Triassic ore-bearing …
The Weibao copper–lead–zinc skarn deposit is located in the northern East Kunlun terrane, NW China. Igneous intrusions in this deposit consist of barren diorite porphyry (U–Pb zircon age of 232.0 ± 2.0 Ma) and ore-bearing quartz diorite and pyroxene diorite (U–Pb zircon ages of 223.3 ± 1.5 and 224.6 ± 2.9 Ma, respectively). Whole-rock …
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Remediation mechanism of Cu, Zn, As, Cd, and Pb …
1. Introduction. Due to the rapid development of industrial and agricultural activities, heavy metals have been widely detected in the soil (Liu et al., 2020b).Owing to the persistence, high toxicity, and non-biodegradability, heavy metal contaminated soil has been considered as an increasingly severe environmental problem (Liu et al., …
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Tin mineralization in the Dajing tin–polymetallic deposit, …
Dajing is a large-scale tin–polymetallic deposit that hosts the largest tin mine in North China. It is a hydrothermal vein-type deposit containing Sn, Cu, Pb, Zn, Ag, and minor components Co and In. The deposit consists of more than 690 veins hosted within Upper Permian sedimentary rocks. Three mineralization stages and six ore types are ...
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Origin of epithermal Ag–Au–Cu–Pb–Zn mineralization in Guanajuato
The Guanajuato mining district is one of the largest silver producers in Mexico, which has been in constant operation for over 450 years. Historic production has been approximately 34,000 tons of silver and 170 tons of gold (Endeavour Silver 2010).. The Guanajuato ore deposit is a low- to intermediate-sulfidation epithermal deposit (the …
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Leaching of Cu, Zn, and Pb from Sulfidic Tailings Under the …
The imbalance between raw materials of high economic importance and their supply has increased the search for new approaches to obtain valuable elements from mining tailings. In this study, the extraction of copper, zinc, and lead from sulfidic tailing in sulfate–chloride media was investigated. A 33 Box–Behnken design was applied to …
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Tracing the ore-formation history of the shear-zone …
The original ore-fluid of the Huogeqi Cu–Pb–Zn deposit in Inner Mongolia, northern China, was enriched in heavy oxygen isotopes with δ 18 O values ranging from 9.9 to 11.4 per mil, which is characteristic of the metamorphic devolatilization of pelitic rocks. The δD values determined by direct measurement of syn-ore hydrothermal tremolite …
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Sediment-hosted Zn–Pb–Cu deposits in the Central African Copperbelt
Kipushi ( Fig. 2, Fig. 3) is the most significant Zn– (Cu)–Pb carbonate-hosted deposit in the Copperbelt of Central Africa with total metal production of 6,622,116 tons Zn and 4,082,275 tons Cu from 1922 to 1993 when operations were suspended. The in-situ ore grades averaged 11.03 wt.% Zn and 6.80 wt.% Cu.
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