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The test results of SRXRF also showed that there is quite high Cu, Zn, Pb and Au and contents in L-type fluid inclusions in stage I, which illustrated that L-type fluid contributed to the copper–zinc mineralization. Enrichment of ore elements Zn and Cu reveals the relationship between mineralization and liquid phase in FIs.
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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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The pyrite from the Qingchengzi ore district hosts variable amounts of As, Pb, Cu, Zn, Co, Ni, Ag, Sb and Au (Fig. 7 a). Among those elements, arsenic is the most abundant trace element in most samples containing hundreds to 10 5 ppm. The subdominant elements are Cu, Zn, Co, Ni, Pb, Ag, Sb, which are in the range of tens to …
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Nanobubble-assisted (NB) flotation investigations have been mostly examined with pure materials and a narrow particle size range, less on complex sulfide ores. This study considered NB flotation for processing complex Pb-Cu-Zn sulfide ore in two different size ranges and various conditions to assess the process readiness.
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The Dapingzhang Cu–Pb–Zn ore deposit is mainly hosted in the felsic volcanic rocks of the Longdonghe Formation located in the Lancangjiang zone within the Sanjiang region, Yunnan province, southwest China. This province is a part of the Lanping–Simao Block at the southern margin of the Yangtze Block (Fig. 1).
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Some sediment-hosted base metal deposits, specifically, the clastic-dominated Zn-Pb deposits, carbonatehosted Mississippi Valley-type (MVT) deposits, sedimentary rock-hosted stratiform copper deposits, and carbonate-hosted polymetallic ("Kipushi-type") deposits, are or have been important sources of critical elements including Co, Ga, Ge, PGEs, and …
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The Huangtan (including Jinling) Au–Cu–Zn deposit is an auriferous volcanogenic massive sulfide (VMS) deposit discovered in East Tianshan, Central Asian Orogenic Belt. The deposit is hosted in volcanic breccia and tuff of the Silurian Hongliuxia Formation. The ore bodies consist of concordant massive sulfide lenses and discordant …
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We obtained the first reliable pyrite Re–Os isotopic isochron age of 417 ± 23 Ma (Fig. 10), which is indistinguishable (within the analytical uncertainty) from the Re–Os dating of 429 ± 10 Ma for the bulk-ore samples and the LA-ICP-MS zircon U–Pb dating of 429 ± 2 Ma for the associated felsic rocks from the Dapingzhang Cu–Pb–Zn ore ...
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A Cu-Pb-Zn sulfide ore from Somincor (Neves Corvo, Portugal) with a chemical composition of 0.5% Cu, 1.2% Pb, 7% Zn, 32% Fe and 43% S was used. The ore sample is a massive sulfide ore containing chalcopyrite, galena, sphalerite and pyrite as the major sulfide minerals. ... Effects of process water chemistry on Cu-Pb flotation …
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They share characteristics with copper ± precious metal-PGE and gold ± silver deposits including fine-grained quartz replacement of carbonate minerals in ore breccias and relatively low S and Pb isotope values (δ 34 S values vary from 0–~4‰; 206 Pb/ 204 Pb <18.5). Copper ± precious metal-PGE deposits (Cu, Co, Ag, Au, Pd, and Pt) consist ...
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At San Roque in Patagonia's Rio Negro Province, Argentina, an In–Au–Cu–Zn–Pb–Ag mineralization (< 0.24 wt.%In, < 7 ppm Au, < 0.45 wt.% Cu, < 14.1 wt.% Zn, < 0.55 wt.% Pb, < 60 ppm Ag) is bound to lava, and volcaniclastics of Triassic through Jurassic age.The polymetallic sulfidic and non-sulfidic indium mineralization is …
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A pre-enrichment process of sulfides is therefore deemed necessary for the formation of orogenic base metal deposits, such as the Bainaimiao Cu-Au-Mo deposit, the Huogeqi Cu-Pb-Zn and the ...
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The modeling reveals two different modes of Cu, Pb and Zn complexing in sulfur-saturated hydrothermal solutions. At lower temperature, chloride complexes are the predominant Cu, Pb and Zn species in sulfide-saturated systems, as expected from previous studies. However, hydrosulfide Cu, Pb and Zn complexes predominate at …
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The Qin-Hang porphyry–skarn copper polymetallic ore belt (QHB) is located along a significant NE–SW-trending Neoproterozoic suture in South China, which separates the Yangtze Craton and Cathaysian Blocks (Fig. 1a; Mao et al. 2011a), containing several large and super-large W, Sn, Cu, Au, Pb, Zn, Ag, and polymetallic deposits.The QHB is …
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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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For individual Zn-Pb deposit, the nature and evolution of ore-controlled structures is crucial for both understanding of ore-forming process and further exploration (Zheng et al., 2017;Song et al ...
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The Tiemurt Pb-Zn-Cu depos it is a medium-si zed Pb-Zn-Cu de posit (metal reserve: 0.2 9 Mt Pb + Zn and 0.14 Mt Cu) ( Wang et al., 1998 ). The three main orebodies (No. 1, No. 4 and No. 27 ...
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This study tests the utility of the minor to trace element composition of sphalerite to discriminate between possible sources of ore-forming fluids, and to constrain processes involved in ore genesis of the world-class Irish …
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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 0 C, 0.8-5.0. kbar), in order to compare the …
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Under optimal conditions including a magnetic flow ratio of 0.076 T·s/m, a pulp concentration of 1.5%, a slurry flow velocity of 500 mL/min, and a 90% mass fraction of minus 45 μm, the Pb grade of the IGC product increased from 45.36% to 68.79% with 55.43% of Pb recovery, while all Cu, Zn, As, Fe, MgO, and Al 2 O 3 concentrations of …
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According to the process mineralogy characteristics of the ore, Cu-Pb-Zn bulk flotation, partial Cu-Pb bulk flotation, and preferential flotation tests were conducted.
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The Tiemurt Pb-Zn-Cu deposit is a medium-sized Pb-Zn-Cu deposit (metal reserve: 0.29 Mt Pb + Zn and 0.14 Mt Cu) (Wang et al., 1998). The three main orebodies (No. 1, No. 4 and No. 27) account for ~90% of the total reserve (Fig. 2).
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Meticulous ore-forming process and ore genesis recorded by sulfide and quartz trace elements. As a widely distributed sulfide in hydrothermal deposits, pyrite is enriched in some important trace elements such as Cu, Pb, Zn, As, Ag, Au, Co, Ni, Sb, Se, Te, Tl and Bi in hydrothermal ore-forming systems (e.g., Chouinard et al., 2005; Cook et …
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The combined depressants of "K2Cr2O4+CMC+ Z-200" was used to treat a lead-zinc concentrate from Nanjing dy restraining lead to get copper[16]. As the bulk concentrate contained 50.8% Pb and 3. ...
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range, less on complex sulfide ores. This study considered NB flotation for processing complex Pb- Cu-Zn sulfide ore in two different size ranges and various conditions to assess the process readiness. Metallurgical NB flotation responses (recovery, grade, kinetics, and selectivity index) were deter-
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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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Polymetallic veins (Pb-Zn-Cu-Ag-Au) at the world-class Bingham Canyon, Utah, porphyry Cu-Au-Mo deposit have long been recognized, but poorly understood. They are laterally …
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Abstract. The Pulang super-large porphyry Cu polymetallic deposit, located in the Sanjiang area of Yunnan Province, is one of the largest Cu deposits in China. This deposit hosts …
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Comprehensive utilization of pyrite cinders is increasingly important because of their huge annual outputs and potential valuable metals recovery to cope with the gradual depletion of high-grade mineral resources. In this work, a new process, i.e., a high-temperature chlorination–magnetizing roasting–magnetic separation process, was …
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The Huize Pb–Zn district is located on the southwestern margin of the Yangtze Plate (Fig. 1), on the western side of the Yunnan–Guizhou fold and thrust belt, on the Jinniuchang–Kuangshanchang (KSC) metallogenic belt within the Dongchuan–Zhenxiong tectonic belt, and on the southeastern part of the Northeast …
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Abstract: Boundaries between the cpx Zn-Pb ores of the Kamioka ore deposit and host clinopyroxene granitoid in the Hida metamorphic belt were examined to decipher the incipient stage of ore formation process. The boundaries are characterized by the compositional zoning of relic clinopyroxene with outward increase of XMg from 0. 5 to 0. …
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The Navan Zn-Pb deposit in Ireland is hosted by a lower Carboniferous, carbonate-dominated sedimentary sequence. In excess of 97 percent of the ore is hosted by a Courceyan, shallow-water succession termed the Pale Beds. The ore occurs as complex strata-bound, tabular lenses often dislocated by faulting and truncated by a submarine …
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Abstract: The Dajing Cu–Sn–Ag–Pb–Zn ore deposit, Inner Mongolia of China, is a fissure-filling hydrothermal ore deposit that occurs within the Upper Permian Linxi group. No magmatic pluton and volcanic rocks outcrop on the surface of the deposit. Most of ore veins show clear-cut boundary with country rocks.
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Lead-dominant carbonate replacement deposits (Pb > Zn, Ag ± Cu ± Au) occur among other deposit types, often near porphyritic intrusions.
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The aim of this study is to review the potential significance of bisulfide complexing in ore fluids based on the existing thermodynamic properties. Simulations were conducted in …
DetailsThe predicted Cu, Pb, and Zn concentrations compare well with natural geofluids, and therefore the model fluids can be applied to investigate hydrothermal ore-forming process. (2) In both low- and high-salinity fluids, Cu, Pb and Zn are transported as hydrosulfide complexes at high temperature, but as chloride complexes at low temperature.
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High-grade Zn-Pb ores are mostly hosted in the Fe-rich marble and some of the mineralization are fragments of foliated ore-hosting marble and mica schist. Zn-Pb-Cu …
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