Ore Geology Reviews
The Xitieshan deposit, located in the central region of the North Qaidam belt in the northern part of Northwestern China (Fig. 1), stands out as one of the prominent lead–zinc deposits within the country.With 640,000 tons of ore, the Xitieshan deposit has an average grade of 4.86 % zinc, 4.16 % lead, 58 g per ton of silver, and 0.68 g per ton of …
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Geological, fluid inclusion and isotopic studies of the Yinshan Cu…
The Yinshan Cu–Au–Pb–Zn–Ag deposit is located in the famous Dexing copper–gold polymetallic district in South China (Fig. 1).This polymetallic district consists of the Middle Jurassic (ca. 170 Ma) Yinshan Cu–Au–Pb–Zn–Ag deposit (950,000 tons of Cu and 107 tons of Au) (JGEB, 1996, Yinshan Lead-Zinc Mine, 1993, Wang et al., …
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Sedimentary Exhalative (Sedex) Zinc-Lead-Silver Deposit …
(see Johnson and others, 2008) for sedex Zn-Pb-Ag deposits. Deposit Type and Associated Commodities Name Sedex Pb-Zn-Ag deposits Synonyms The term sedex, derived from sedimentary exhalative (Carne and Cathro, 1982), is based on the interpretation that the finely laminated or bedded sulfide ores that characterize
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Tracking silver in the Lappberget Zn-Pb-Ag-(Cu-Au) deposit, …
Several Zn-Pb-Ag sulfide deposits are present within the Garpenberg area and are explored and mined by Boliden Mineral AB (Fig. 3). The Lappberget deposit is currently the largest sulfide deposit in the mine with a combined mineral resource and ore reserve of 58 Mt at 3.42% Zn, 1.68% Pb, 0.06% Cu, 70 g/t Ag and 0.41 g/t Au (Högnäs, …
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Spatial Distribution of As, Cr, Pb, Cd, Cu, and Zn in the Water …
Historical and active mining has adversely affected the geochemistry of the Jiehe River in the Jiaodong Peninsula, which has the largest gold ore reserves in China. Water and sediment samples were collected along the 37.8 km long river during the critical low flow season. Samples were analyzed for their geochemical properties, total …
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Revealing the orogenic genesis of Huogeqi Cu-Pb-Zn …
Orogenic-type deposit is one of the most important economic deposit types in the world and accounts for large amounts of metal reserves, especially gold, in the …
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Origin and Evolution of Ore-Forming Fluid and Metallogenic …
The formation of skarn deposits is usually restricted by medium-acid intrusive rocks, wall rocks and structural conditions, and the contact zone between …
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Woodlawn Zn-Pb-Cu sulfide deposit, New South Wales, …
At the start of production in 1978, in situ ore reserves amenable to open-cut mining totaled 6.3 million metric tons of complex ore with an average grade of 1.7 percent Cu, 5.5 percent Pb, 14.4 percent Zn, and 89 ppm Ag, and 3.7 million metric tons of stockwork copper ore averaging 1.9 percent Cu.The deposit occurs in Middle to Upper Silurian ...
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Metallogenesis of the orosirian epithermal coringa gold-silver (Cu-Pb
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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Geology, mineralogy, and cassiterite geochronology of the Ayawilca Zn
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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Middle Triassic Cu–Pb–Zn Skarn mineralization in the Wulonggou gold ore
PDF | On Jun 1, 2024, Jia–Jie Xiong and others published Middle Triassic Cu–Pb–Zn Skarn mineralization in the Wulonggou gold ore field, Eastern Kunlun Orogen, NW China: Insights from ...
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Metallogenic model of porphyry copper-epithermal Ag-Pb-Zn …
It is found that the Zhaojikou deposit has some similarities to the Chaganbulagen Pb-Zn(Au) deposit, Jiawula Pb-Zn(Ag) deposit and Yingshan Ag-Cu-Pb-Zn deposits, these deposits are considered to ...
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Copper, gold and silver enrichment in ore mylonites within …
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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Quantifying the variability of a complex ore using …
Metal deportment for Zn, Pb, Cu, Ag, Au, and Sb for the different ore types. For Zn and Pb graphs, the distribution (%) ranges from 95 to 100. Download: Download high-res image (387KB) Download: Download full-size image; Fig. 7. Liberation curves (left) and grain size distribution (right) of sphalerite, galena, chalcopyrite, and Au-Ag phases ...
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Mineralogy, fluid inclusion and stable isotope study of the …
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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Figure 5. Pb-, Zn-, and Cu-bearing particles in soils …
Pb-, Zn-, and Cu-bearing particles were observed in the soil samples over the studied gold deposit. Figure 5 a shows a Pb-and Zn-bearing particle aggregation, approximately 50-100 nm in size and ...
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Formation of the Lianhuashan Cu deposit in the southern …
We suggest that Cu minerals at Lianhuashan were precipitated with boiling at ∼ 1 km depth.For the ore-forming granodiorite porphyry (zircon U-Pb age: 252.8 ± 1.8 Ma), geochemical data indicate that the primary magma was formed by partial melting of the thickened or delaminated lower crust.
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Pyrite Textures and Compositions in the …
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 …
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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 …
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What Are The Characteristics Of Cu-Pb-Zn Polymetallic Sulfide Ore …
Cu-Pb-Zn polymetallic sulfide ores are natural formations that contain multiple valuable metals such as copper, lead, and zinc, often along with other minor elements like gold and silver. The ...
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Base Metal Ores
Base metal ores refer to non-ferrous metals such as Cu, Pb, Zn, and Ni that are used in various industrial applications. ... gold copper ore, gold antimony ores, etc.), because the flotation methods used for the recovery of gold from different ores is vastly different. ... froth flotation is commonly used to separate particles within the size ...
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Ore geology and fluid inclusion geochemistry of the Tiemurt Pb–Zn–Cu …
Orogenic gold deposits are the main source of gold reserves in the world and their geochemical characteristics and tectonic settings are known to geologists (Groves et al., 1998).The possibility and potential of orogenic-type Ag, Pb–Zn, Cu, Mo and other metals are proposed, considering their geochemical similarities (Chen et al., 2004b, …
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In-situ multiple sulfur isotopes of the Archean Hongtoushan Cu-Zn …
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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A rare sellaite-bearing orogenic gold deposit at Pianyanzi, …
The gold ore bodies are mainly hosted in the NNE–NE-trending extensional faults and fractures. ... The measured elements are Se, S, Bi, Fe, Cu, Zn, As, Co, Ni, Sb, Ag, Pb and Au. All data were corrected using a standard ZAF routine, yielding a precision of better than 1 %. ... Due to significant differences in ionic size, it is challenging ...
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Sericite 40Ar/39Ar and zircon U-Pb dating of the Liziyuan gold …
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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CU, AU, AND ZN-PB SKARN DEPOSITS (MODELS 18b,c; …
skarn about 30 km to the north, high grade ore is sulfide mineral rich, and includes mostly pyrrhotite as well as lesser amounts of chalcopyrite, pyrite, arsenopyrite, and native …
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Middle Triassic Cu–Pb–Zn Skarn mineralization in the …
The Cu–Pb–Zn ore bodies are layered, veined, ... Lu–Hf isotopic measurements were made on the same zircon grains for U–Pb isotopes with a spot size of 40 μm. ... Fig. 7) suggests that the age result for the phlogopite sample from the skarn …
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In situ zircon U–Pb dating and O isotopes of the Neoarchean Hongtoushan
The impermeable volcanic layers control the size and location of the Cu–Zn mineralization. ... The core–rim texture observed in most of the zircons from the Cu–Zn ore samples (HTS3-4 and HTS3-9) ... a tool for ion microprobe U–Pb dating of gold mineralization (Tamlalt–Menhouhou gold deposit — Morocco) Chem. Geol., 245 (2007) ...
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Evolution of an ancient VMS ore-forming system recorded …
1. Introduction. Volcanogenic massive sulfide (VMS) deposits are one of the most important sources of metals (mainly Cu, Zn, Pb ± Au) in the world (Mercier-Langevin et al., 2011, Hannington, 2014, de Ronde et al., 2019).Metallogenesis of this kind of deposit is often complex and multistage, making it difficult for ore geologists to obtain detailed …
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The Boumaadine Fe–Mn–Pb–Cu (± Au) ore deposit (Jbel …
The eastern High Atlas in Morocco is a metallogenic province that hosts several base- and precious-metal deposits in the Proterozoic to the Paleozoic basement and its Mesozoic cover (Saadi et al., 1985) (Fig. 1 a).The most frequent types of mineralization are: (i) the Pb, Zn and Cu ore deposits and occurrences (Adil et al., 2004; …
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Two-stage CuPbZn mineralization of the Baoshan deposit in …
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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Improving gold recovery of Pb–Zn sulfide ore by selective …
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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