— This study aimed at elucidating the groundwater and surface water pollution resulting from water-rock interaction, mine tailings, and mining activities at Küre (Kastamonu) sulfidic Pb-Zn-Cu mine ...
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— The Coringa gold-silver (Cu-Pb-Zn) deposit, in southeastern of Tapajós Mineral Province, is hosted in felsic volcanic rocks the Vila Riozinho Formation (1996 ± …
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— The western or upper lens is Zn-rich (6 to 7% Zn, ∼ 0.3% Cu and < 1% Pb) and, based on stratigraphic correlation, is interpreted to represent the continuation of the Tazakourt orebody. The eastern or lower lens is Cu-rich (2 to 3% Cu, < 1% Zn, < 1% Pb and ∼ 600 to 700 ppm Co). Total reserves at Tazakourt are estimated at 10 Mt grading …
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— The results from this study suggest that mature SSMSW compost with concentrations of Cu, Pb, Mo, and Zn of 311, 223, 17, and 767 mg/kg, respectively, could be used as a soil conditioner without ...
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— Mesozoic magmatism and timing of epigenetic Pb-Zn-Ag mineralization in the western Fortymile mining district, east-central Alaska: Zircon U-Pb geochronology, whole-rock geochemistry, and Pb isotopes
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Standard Electrode Potentials. To measure the potential of the Cu/Cu 2 + couple, we can construct a galvanic cell analogous to the one shown in Figure (PageIndex{3}) but containing a Cu/Cu 2 + couple in the sample compartment instead of Zn/Zn 2 +.When we close the circuit this time, the measured potential for the cell is negative (−0.34 V) rather …
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— 1. Introduction. Globally, epithermal deposits host significant amounts of Cu, Pb, and Zn as well as other economically important elements such as In and Te (Hedenquist et al., 2000; Sillitoe and Hedenquist, 2003).These metals commonly occur in sulfides, mainly as chalcopyrite (CuFeS 2), galena (PbS), and sphalerite (ZnS); …
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— In the main stage Cu-Pb-Zn mineralization, Cu was precipitated prior to Pb and Zn. The Cu mineralization in the mylonites is dominated by stockworks while breccia mineralization is common in Pb-Zn ores and the fragments are cemented by sphalerite, galena, and pyrrhotite (Zhong et al., 2012). Ore fabrics and mineral assemblages of Cu …
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Description. Handheld Mineral Analyzer is our top of the line mineral analyzer and spectrometer for field use. Analyzes elements Mg to U down to 1 ppm with 0.05% …
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— The Guanajuato epithermal district is one of the largest silver producers in Mexico. Mineralization occurs along three main vein systems trending dominantly northwest–southeast: the central Veta Madre, the La Luz system to the northwest, and the Sierra system to the east. Mineralization consists dominantly of silver sulfides and …
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— The Baoshan Cu Pb Zn skarn deposit is located in southern Hunan province at about 30 km west of the Chenzhou city in the western Nanling Range, west of the Chenzhou–Linwu fault (Fig. 1 c). It is a skarn-hydrothermal type Cu-polymetallic deposit with metal reserves of 238,700 t at an average grade of 1.28 % Cu, 470,700 t at an …
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— The Lower Changjiang (Yangzi/Yangtze River) metallogenic belt, east central China: intrusion- and wall rock-hosted Cu–Fe–Au, Mo, Zn, Pb, Ag deposits. Author links open overlay panel ... particularly with respect to association with small, shallow ... Geological Team 321, 1990. Copper and gold deposits of the Tongling district. …
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Semantic Scholar extracted view of "Middle Triassic Cu–Pb–Zn Skarn mineralization in the Wulonggou gold ore field, Eastern Kunlun Orogen, NW China: Insights from phlogopite Ar–Ar and zircon U–Pb dating and Sr–Nd–Pb–Hf isotopes" by Jia–Jie Xiong et al.
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— Metal Equivalent Grade versus NSR for Poly-Metallics. Many of the mining studies that I have worked on were deposits containing multiple recoverable metals. For …
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— Within the SCB, the Nanling Metallogenic Belt (NMB) is best known for its world-class W-Sn-Pb-Zn polymetallic mineralization, with about 73 % of W, 85 % of Sn, 30 % of Pb, and 22 % of Zn reserves in China (Fig. 1, Wang et al., 2007).The Dafang Au-Ag-Zn-Pb deposit is situated in southern Hunan Province, the central part of NMB.
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Pipe-shaped zones of altered rock containing disseminated and stockwork vein mineralization underlie each of the several Archean volcanogenic Cu-Zn ore lenses at the Millenbach mine. The rocks and mineralization have been metamorphosed first to hornblende hornfels assemblages, then retrograded to greenschist facies assemblages, …
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— The Mount Isa Cu-Pb-Zn deposit is hosted in the ca. 1650 Ma Urquhart Shale of the Mount Isa Group (Fig. 1).The Urquhart Shale is composed of highly interlayered fine-grained carbonaceous and dolomitic sediments, pyritic shales and various tuffaceous beds (Neudert and Russell, 1981).Sedimentological and microfossil data suggest the Urquhart …
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— Sulfur and chlorine are the two most important ligands accounting for metal transport in the upper crust. In this study, four metal- and sulfur-saturated model fluids with varying salinities and redox states were simulated in the Fe-Cu-Pb-Zn-Au-S-C-H-O system, over a wide pressure-temperature (P-T) range (50–650 °C, 0.8–5.0 kbar), in order to …
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— Ages and Sources of Components of Zn-Pb, Cu, Precious Metal, and Platinum Group Element Deposits in the Goodsprings District, Clark County, Nevada ... and gold ± silver deposits that are spatially associated with Late Triassic porphyritic intrusions. The district encompasses ~500 km 2 although the distribution of all deposits has been ...
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— The Ayawilca deposit in Pasco, Peru, represents the most significant recent base-metal discovery in the central Andes and one of the largest undeveloped In resources globally. As of 2018, it hosts an 11.7 Mt indicated resource grading 6.9% Zn, 0.16% Pb, 15 g/t Ag, and 84 g/t In, an additional 45.0 Mt inferred resource grading 5.6% Zn, 0.23% Pb, …
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— Semantic Scholar extracted view of "The Lower Changjiang (Yangzi/Yangtze River) metallogenic belt, east central China: intrusion- and wall rock-hosted Cu–Fe–Au, Mo, Zn, Pb, Ag deposits" by Yuanming Pan et al.
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— The Tiemurt Pb-Zn-Cu deposit (metal reserve: 0.29 Mt (Pb + Zn) and 0.14 Mt Cu) is hosted in the Kangbutiebao Formation volcanic-sedimentary rocks in the Chinese Altay Orogen, NW China. ... The generation and accretion/assemblage of these terranes resulted from a complex series of opening and closing of small ocean basins, and the …
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— The minerals exploration undercover relies on the understanding of the ore-forming processes and the associated alteration characteristics that are used in vectoring towards a deposit. Previously, the proposed process for forming the 1590 Ma Abra base-metal deposit, hosted at 250 m depth in the Paleoproterozoic Edmund Basin of the …
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— Jinchanghe is a Zn-Pb-Fe-Cu skarn deposit in the northern Baoshan block, southwestern China. It is a typical distal skarn deposit with orebodies in the Cambrian Hetaoping Formation limestone and calcareous siltstone. The skarn minerals display a vertical zonation with garnet skarn in the lower part and pyroxene skarn in the upper …
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— The Southern Permian basin in central Europe contains a number of important high-grade sediment-hosted Cu deposits. Laterally extensive stratabound Cu and Zn-Pb sulfide mineralized rocks are located at a major stratigraphic redox boundary, where coarse-grained continental sandstones of the uppermost Rotliegend Group are overlain …
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— The district is known for its placer gold (Yeend, 1996), ... The Oscar prospect is composed of several Cu-Zn-Pb-Ag skarns within marble interlayered with quartzite, ... Whole-rock trace element data and Pb isotope compositions for feldspars from the mid-Cretaceous intrusions from our study indicate a significant crustal component in the …
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The Ait Dawd Cu-Au vein deposit is located in the northern part of the oldest Erdouz Pb-Zn-Ag district, which is situated on the northern range of the western High Atlas, Morocco, about 8 km SW of ...
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Zn(s) + Cu 2 + → Zn 2 + + Cu(s) we write. Zn(s) | Zn 2 + (aq) || Cu 2 + (aq) | Cu(s) in which the single vertical bars represent phase boundaries. The double bar denotes a liquid-liquid boundary which in laboratory cells consists of a salt bridge or in ion-permeable barrier. If the net cell reaction were written in reverse, the cell notation ...
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