Nov 1, 2018 · Distal Pb—Zn skarn commonly displays ambiguous relationships with the nearby intrusions, leading to poorly constrained and often controversial skarn metallogenic models. In this study, we discuss the potential usage of spessartine, a common U-bearing gangue mineral in many Pb—Zn skarn deposits, in U—Pb dating.
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Dec 1, 2014 · The Shanshulin Pb–Zn deposit occurs in Upper Carboniferous Huanglong Formation dolomitic limestone and dolostone, and is located in the western Yangtze Block, about 270 km west of Guiyang city in southwest China.Ore bodies occur along high angle thrust faults affiliated to the Weishui regional fault zone and within the northwestern part of the …
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Aug 20, 2018 · The adsorption of metals onto Fe oxides, hydroxides and oxyhydroxides (hereafter denoted as Fe oxides for simplicity) is an important process that can influence metal mobility and bioavailability in soils and aqueous environments, and which has been studied for more than forty years (Raogadde and Laitinen 1974).Due to the development of advanced analytical …
Oct 5, 2023 · The amount of Pb release in all concentrations was higher in oxalic acid, followed by citric acid, and malic acid. The amounts of released Pb at C+SBBA, C+SSK, and C+SST were similar with each other and higher than the other treatments. As for Zn, citric and oxalic acids released similar amounts of Zn, but malic acid released lower Zn (Fig. 1 ...
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Feb 1, 2024 · Indium is listed as a critical metal for its wide application in high-tech electronic industries such as solar panels, LCD displays, and touch screens (Cao et al., 2021, Schwarz-Schampera and Herzig, 2002, Werner et al., 2017, Zheng et al., 2023).In geochemistry, indium is a dispersed element with relatively low abundance (0.056 ppm in the upper crust, Rudnick and …
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Jun 1, 2016 · Heavy metal migration was evaluated in Pb–Zn tailings covered by different topsoil constructions. The four topsoil constructions each had different interlayers: one with direct topsoiling above the tailings (CT); the second had a limestone interlayer between the tailings and topsoil with two geotextile layers set above and below the interlayer (SLS); the third had a lime …
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May 1, 2022 · The Fengyan deposit hosts a proven reserve of 6.06 Mt (Pb + Zn) @ 1.18% Pb and 6.24% Zn, as well as economic Ag, Cu, Cd, Co, and In endowment (ECMEDBNM, 2019). Magnetite is a ubiquitous mineral in the Dingjiashan and Fengyan deposits, and shows an intimate spatial relation with sphalerite, galena, chalcopyrite, and pyrrhotite.
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Nov 24, 2023 · The volatilization rates of Pb, Zn, Cd and As increased with the increase of temperature, and the volatilization rate of As was much higher than other heavy metals. The volatilization rate of Pb and Cd increased slowly below 500 °C and speeded up at temperature higher 500 °C. The introduction of limestone has not changed the volatilization ...
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Nov 1, 2023 · The Nanling Metallogenic Belt (NMB) is characterized by strong Mesozoic magmatic activities, forming numerous deposits with diverse metal assemblages and inhomogeneous distribution (Jiang et al., 2009, Chen et al., 2013, Mao et al., 2013, Zhang et al., 2017b, Cao et al., 2021).These deposits can be roughly divided into two categories, i.e., the …
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Oct 1, 2015 · Proposed tectonic illustrations of the development of the skarn Fe, the granite-related Pb–Zn–Ag, and the porphyry Mo deposits in the northeastern Gangdese polymetallic belt induced by roll-back of the subducted Neo-Tethyan ocean slab during the main-stage of India–Asia continental collision (65–50 Ma).The skarn Fe deposits are genetically associated …
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