Mineralogy and Innovative Flash Flotation Separation of Cu …
The results demonstrate that the ore consists of 35 categories of minerals, assaying Cu 7.99%, Pb 9.39%, and Zn 1.96% in the forms of chalcopyrite, galena, and …
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The results demonstrate that the ore consists of 35 categories of minerals, assaying Cu 7.99%, Pb 9.39%, and Zn 1.96% in the forms of chalcopyrite, galena, and …
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The large Bafangshan-Erlihe Zn-Pb-Cu deposit, located in the north of the Fengtai ore cluster, contains over 1.1 Mt of ore comprised of 7.4% Zn, 1.3% Pb, and 0.87% Cu on average (No. 717 Geological Party of Northwest Geological Exploration and Mining Bureau for Nonferrous Metals, 1994), with recoverable Ag, Au, Cd and Hg.
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In contrast, pyrite grains from the underlying stockwork and veins (V-Py1, V-Py2, and V-Py3) are characterized by low Au, Ag, Cu, Zn, Pb, Sb, and Tl concentrations coupled with high Co, Se, Te, and Ti concentrations and high Co/Ni ratios, which are interpreted in terms of reducing and high-temperature ore-forming fluids.
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The Hongtoushan Cu-Zn-Au deposit, located in the Hunbei Archean terrane of the Qingyuan granite-greenstone belt in the North China Craton (Fig. 1), is the oldest (approximately 2.55 Ga) and largest Archean VMS deposit in China (Gu et al., 2007, Zheng et al., 2011, Qian et al., 2014, Peng et al., 2022).The deposit has been mined since the …
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The results demonstrate that the ore consists of 35 categories of minerals, assaying Cu 7.99%, Pb 9.39%, and Zn 1.96% in the forms of chalcopyrite, galena, and sphalerite, respectively, and silver assaying 157.9 g/t is closely associated with these sulfides; sulfides are present in amounts of 80.31% of the total, traditional gangues only …
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Besides the many Mesozoic W–Sn–Mo–Bi–Cu–Pb–Zn–Au–Ag ore deposits in South China, there are a few small-scale Mesoproterozoic to Neoproterozoic volcanic-hosted massive sulfide (VHMS) Cu–Zn deposits distributed along the easternmost part of the Qin-Hang Neoproterozoic suture (Wang and Zhao 1980; Huang 1992) and some …
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The Devonian sequences in the Chinese Altay are highly fertile of base metal deposits, notably the giant Ashele Cu-Zn, Keketale Pb-Zn and Mengku Fe deposits (Wang et al., 1998; Wan et al., 2010a, Wan et al., 2010b), and the Abagong polymetallic belt (Zhang et al., 2012; Zheng et al., 2012).These Devonian sequences comprise mainly …
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The Luziyuan skarn deposit is the second largest Pb − Zn deposit in the Baoshan block, Yunnan Province, Southwestern China. Rhodonite is a widespread skarn mineral in the host rock, occurring as coarse-grained crystals and veins, and is closely associated with Pb − Zn mineralization. In-situ elemental analysis of rhodonite from …
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Figure 3.7.9. Photographs showing Ni-Cu sulfide mineralization in drill core from the Sakatti deposit. (A) Chalcopyrite-dominated massive sulfide mineralization with streaks of pyrrhotite and minor pentlandite and magnetite; (B) contact of pyrrhotite-pentlandite-pyrite massive sulfide mineralization with olivine cumulate; (C) pyrrhotite …
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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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Leaching Behavior of Cu, Zn, and Pb Using Design of Experiment. Table 3 summarizes the experimental setup performed and the results obtained for the desired metals Cu, Zn, and Pb in a 4-h experiment according to the 3 3 Box–Behnken design. As shown, approximately 30% of Cu and Zn were leached within 4 h in experiment …
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The Qingchengzi ore district is a Pb-Zn-Au-Ag polymetallic ore district with more than 10 Pb-Zn deposits with total proven metal reserves of 150 Mt Pb + Zn(Fig. 2 a). The representative deposits include the Zhenzigou, Diannan, Erdao Pb-Zn deposits and Xiquegou, Nanshan, Benshan Pb deposits.
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This comprehensive study focuses on the geometallurgical characterization of the complex Lappberget polymetallic Zn-Pb-Ag- (Cu-Au) sulfide deposit at the …
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The formation of high-grade gold ore has always been attractive, mostly located in Precambrian gold deposits with various mechanisms. Yet, in the orogenic Bangbu gold deposit, Tibet, we discovered that the coupled dissolution-reprecipitation (CDR) process and low melting point chalcophile elements (LMCE) -related melting are …
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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 ± 21 Ma) and in the Serra Alkali Feldspar Granite (1999 ± 25 Ma), and has been interpreted to have formed in a post-collisional volcano-plutonic setting.
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tion 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 Baiyinnuo'er deposit in northern China is located in the south section of the Great Xing'an Range, and it is the largest skarn Zn–Pb deposit in the region. Skarn and Zn–Pb orebodies mainly occur between the different units of the Permian Huanggangliang Formation, or within the contact zone between the intrusive rocks and the marble. …
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The Bieluwutu Cu-Pb-Zn deposit is located in the Ondor Sum region of the western Xing'an-Mongolia orogenic belt, North China. The host rocks of the deposit consist of metasandstone, tuffaceous slate, andesitic tuff and fragmented felsic volcanic rocks, which have previously been regarded as the Early Carboniferous Amushan Group.
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Pyrite is the most common gold-bearing sulfide and is also an important host to a range of trace elements such as Au, Ag, Cu, Pb, Zn, Co, Ni, As, Sb, Se, and Te, which are useful indicators for ore genesis and physico-chemical conditions [6,7,8,9,10,11,12,13,14].
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In this study, we report the results of Rb–Sr isotopic analysis for sphalerite and pyrite samples from the Baiyinnuo'er orebodies, which yielded two isochron ages of …
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Download: Download full-size image; Fig. 1. ... Combined with mineralogy study, the spikes of Cu, Pb, Zn, Bi and Ag in laser ablation spectra may also be recognition of mineral inclusions and/or nanoparticles. ... Arsenopyrite-pyrite association in an orogenic gold ore: Tracing mineralization history from textures and trace elements. Econ. Geol ...
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The experimental design methodology (RSM) was conducted to investigate the effect of parameters such as pH, collector, depressant, dispersant, preparation time and size of …
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Free gold and gold wrapped in sulfides are considered as the object of gold floatation. However, floatation of free gold exhibits more variables in practice. In this study, improving gold recovery of a Pb–Zn sulfide ore from Yunnan Province, China, was investigated. The results show that free gold and auriferous sulfides account for 94.99 …
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Ore reserves are around 0.5 Mt and grades are 3.21% Zn, 0.58% Pb, 0.86% Cu with 83.31 ppm Ag and 0.41 ppm Au. Sulphide mineralizations occur as a local replacement of carbonate bars rocks.
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The Liziyuan gold deposit (105°53ˊ57˝-105°56ˊ57˝ E, 34°11ˊ30˝-34°13ˊ00˝ N) is located in the northern belt of the West Qinling orogen (Fig. 1).Stratigraphically, the mining area is dominated by greenschist facies metamorphosed sedimentary-volcanic rocks of the Ordovician Liziyuan Group, with minor exposures of Paleoproterozoic Qinling …
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We have extensive experience in the preparation of a diverse range of CRMs including gold, gold-silver, gold-copper-(molybdenum), copper, copper-gold-uranium, copper-molybdenum, iron, nickel sulphide and laterite, zinc oxide, Zn-Pb-Ag sulphide and oxide, polymetallic (Au-Cu-Zn-Pb-Ag), platinum group elements, tungsten, uranium, Rare Earth ...
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Microscopically, almost all the sphalerite in ore mylonite sample HT-91 has been affected by shearing, indicating that the Zn content of 9.61 wt.% in this sample was inherited from the pre-shearing massive sulphide ore. Enrichment of Cu, Au and Ag in the ore mylonite is basically consistent with the mine records where mylonitic ore grades ...
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Download: Download full-size image; Fig. 1. a. ... 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 ...
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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% …
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Fine dust from copper smelting plants is an important source of raw materials for the extraction of various valuable metals. A specific feature of dust from copper smelting plants in Kazakhstan is their high arsenic content of up to 15%. This work shows the possibility of hydrometallurgical processing of fine dust from copper smelters, …
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Abstract: Western Tianshan Mountains extend from Uzbekistan through Tajikistan, Kyrgyzstan, southern Kazakhstan to Xinjiang Western Tianshan, with a length of 2500 km from west to east. This belt is the core zone of the "Asian Gold Belt" and shows evident potential of Au-Cu-Zn-Pb mineral resources. Large Au-Cu-Zn-Pb ore deposits …
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