Ore genesis at La Colorada Ag-Zn-Pb deposit in Zacatecas, Mexico
Ore genesis at La Colorada Ag-Zn-Pb deposit in Zacatecas, Mexico N. I. Chutas; ... Mexico is an epithermal Ag-Zn-Pb system hosted in Mesozoic calcareous sedimentary rocks overlain by Tertiary volcanic rocks. The dominant vein is associated with a fault system that accommodates Tertiary normal and strike-slip faulting. ... The ore …
Fluid inclusions and C–H–O–S–Pb isotope
1. Introduction. Sediment-hosted Pb-Zn deposits are a significant type of ores mainly hosted by siliceous clastic rocks and carbonates that generally show no direct genetic association with intrusions, and they account for a remarkable proportion of the lead and zinc production worldwide (Leach et al., 2005, Leach et al., 2010).Most of them are …
Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore
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. ...
Metallogenic environments, ore-forming types and …
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 …
Origin of ore-forming fluids of the Zn-Pb-(Cu) deposits in …
Semantic Scholar extracted view of "Origin of ore-forming fluids of the Zn-Pb-(Cu) deposits in the Jinbao mine district of eastern Guizhou Province, China: Evidence from chemical compositions of fluid inclusions and their lithium isotopes" by Lin Xu et al. ... Carlin-type gold deposits are among the most important gold-bearing hydrothermal ore ...
HIGH-GRADE KHUSIB SPRINGS COPPER-SILVER MINE …
producers with a historic resource of 27Mt at 4.3% Cu, 10% Pb, 3.5% Zn and 95g/t Ag 2. A compilation of previous drill data and mining plans at Khusib Springs shows that remnant copper ore exists on the margins of mined stopes. The unmined ore is in the footwall between Levels 2 and Level 3 at a depth of ~50m and could easily be mined by open pit.
[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 …
Future availability of mineral resources: ultimate reserves
This study aimed to provide a brief account of the ultimate recoverable resources for copper (Cu), gold (Au), iron (Fe), nickel (Ni), lead (Pb), and zinc (Zn). We …
Linking carbonate-hosted ZnPb deposit to deep mantle
2.Regional geological setting and Huayuan Zn Pb ore field. The Huayuan Zn Pb ore field (>15 Mt. metal resources, at 1–4% Zn, 0.1–1.5% Pb) is located at the western margin of the Nanhua basin in South China (Fig. 1 a). The amalgamation of the Yangtze and Cathaysia Blocks at ca. 980–820 Ma formed the Jiangnan orogenic belt and the …
Pb-Zn-Cu accumulation from seafloor sedimentation to …
Pb-Zn-Cu accumulation from seafloor sedimentation to metamorphism: Constraints from ore textures coupled with elemental and isotopic geochemistry of the …
Genesis of the Bafangshan-Erlihe Zn-Pb-Cu deposit in the …
The Fengxian–Taibai (abbr. "Fengtai") ore cluster in the west Qinling orogen, Shaanxi, central China, comprises an important part of the giant Qinling Zn-Pb-Au metallogenic belt (Fig. 1 a and b).The total Pb–Zn reserve is >5 Mt with a Au reserve of >200 t in the ore cluster (Wang et al., 2007, Li, 2008).In the Fengtai ore cluster, there …
Determining the ore-forming processes of Dongshengmiao Zn-Pb-Cu …
The Dongshengmiao deposit in the Langshan district is a large Zn-Pb-Cu deposit with reserves of 4.83 Mt Zn at an average grade of 2.85 % Zn, 0.96 Mt Pb at 0.67 % Pb, and 0.11 Mt Cu at 0.86 % Cu (Long, 2009). As the third largest Pb-Zn deposit in China, its genesis has been actively debated since its discovery (Wang et al., 2014). …
Contrasting regimes of Cu, Zn and Pb transport in ore …
Abstract. 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 ...
Zinc, copper, and strontium isotopic variability in the …
and western ore blocks in sediment-hosted, Cu–Ag–Pb–Zn polymetallic deposits of the Baiyangping ore district in western Yunnan, China. It's located in the northern part of the Lanping-Simao foreland fold belt, between the Jin-shajiang-Ailaoshan and Lancangjiang Faults. This area is divided into eastern and western ore zones (Xu and Li
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 …
Nature and Origin of Zoned Polymetallic (Pb-Zn-Cu-Ag-Au …
It contains up to 1.14 wt% As with trace Cu, Zn, Pb, V, Mn, Co, Ni, Ge, Se, Ag, Sb, Te, Pb and Bi, as well as colloform Cu-rich growth bands containing vugs toward the outer edges of some crystals.
Behavior of critical metals in metamorphosed Pb-Zn ore …
The Pb-Zn district of the PAZ was exploited in twentieth century. It has produced ca. 400 kt of Zn and 180 kt of Pb (BRGM 1984; Ovejero Zappino 1991).Three types of Pb-Zn mineralization are described in Cugerone et al. ().Type 1 is minor, disseminated, and laminated mineralization, probably associated to sedimentation …
Porphyry Cu–Au–Mo–epithermal Ag–Pb–Zn
The Dele Mesozoic volcanic basin in the northern Jiangxin province, Southeastern China (Fig. 1) hosts three significant ore deposits: the Dexing porphyry Cu–Au–Mo deposit; the Yinshan Ag–Pb–Zn vein deposit; and the Jinshan shear zone-hosted gold deposit.Mining of these deposits began in the Sui and Tang Dynasties …
Fluid evolution and ore genesis of Cu–Pb–Zn veins in the …
The newly discovered Panjiaduan Cu–Pb–Zn deposit (9.3 Mt; at 1.36% Cu, 2.90% Pb, 3.80% Zn and 38.12 g/t Ag), located in the SE segment of the SGXR, is primarily hosted in fracture zones in ...
Evolution of a hydrothermal ore-forming system recorded …
Laser ablation-inductively coupled plasma-mass spectrometry and electron-probe microanalysis were used to investigate the trace-element contents of sphalerite, chalcopyrite and pyrite from the Plaka Pb–Zn–Ag deposit. Using petrographic observations, the analytical results could be linked to the temporal evolution of the Plaka ore-forming …
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Mining operations release heavy metals that can be extracted by water Depending on the mine and its location Ni V Cr Mn Cu Pb Zn and As can be released into the hydrosphere Mercury Mercury was widely used to in California gold mines to …
Cu-Pb-Zn Polymetallic Ore in Weak Acidic Pulp
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 ...
Diagenetic History and Timing of Cu and Zn-Pb Sulfide
The Southern Permian basin in central Europe contains a number of important high-grade sediment-hosted Cu deposits. Laterally extensive stratabound Cu …
Ore genesis and tectonic setting of the Bieluwutu Cu-Pb-Zn …
In 1990, it was reported with metal reserves of 17,754 t Cu, 5,930 t Pb, 17,401 t Zn and 20 t Ag with an average grade of 0.63 wt% Cu, 0.28 wt% Pb, 0.82 wt% …
Geology and Origin of Supergene Ore at the Lavrion Pb‐Ag‐Zn …
Cu-pyrite ore bodies consist mainly of pyrite, arsenopyrite, chalcopyrite plus minor sphalerite, galena and sulfosalts. Fluorite, barite, quartz and carbonate are the gangue minerals. A polymetallic geochemical signature characterizes the mineralization. Lead, Ag, Zn and Cu contents are similar to those of the carbonate-hosted replacement …
Leaching of Cu, Zn, and Pb from Sulfidic Tailings Under …
About 90% Zn was leached in a H 2 SO 4 solution at 80 °C, while the recovery of Pb was possible only in the brine leaching step. Ye et al. [22] extracted zinc and lead from lead–zinc mine tailings by the combined sequen-tial bioleaching and brine leaching. About 98% of Zn was extracted by bioleaching, and 99% of Pb was extracted in a
Petrogenetic and Metallogenetic Background of the Dajing Cu–Sn–Ag–Pb–Zn …
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.
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Understanding the Cu-Zn brass alloys using a short-range …
The chemical composition within the 2 nd-neighbor local zone is then Zn + Cu 9.4 Zn 2.6 + Cu 3.5 Zn 2.5 = Cu 12.9 Zn 6.1, or Cu 67.9 Zn 32.1 in at.%, which is close to that of the alloy, Cu 68.9 ...
Recognition of the Xiayu intermediate-sulfidation epithermal Ag-Pb-Zn
The Xiong'ershan district is located in the middle of the East Qinling ore belt, and hosts a number of porphyry Mo (-W), vein/disseminated Au, breccia-hosted Au, and vein type Ag-Pb-Zn deposits, of which the vein-type Ag-Pb-Zn and Au ores usually developed in separation (Fig. 1).The Xiayu Ag-Pb-Zn-Au(-Cu) orefield is the largest Ag …