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This study tested mapping of prospectivity for gold deposits in the Qingchengzi Pb–Zn–Ag–Au polymetallic district using single machine learning algorithms and EL algorithms.
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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., 2011b), the Middle …
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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 …
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The Bou Madine Au–Ag–Pb–Zn ± Cu epithermal deposit in the Ougnat Pan-African inlier of the eastern Anti-Atlas occurs within the lower unit of the late Neoproterozoic Tamerzaga-Timrachine ...
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Determining the ore-forming processes of Dongshengmiao Zn-Pb-Cu deposit: Evidence from the linear discriminant analysis of pyrite geochemistry December 2023 Ore Geology Reviews 163:105782
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Ore precipitation in porphyry copper systems is generally characterized by metal zoning (Cu–Mo to Zn–Pb–Ag), which is suggested to be variably related to solubility …
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Copper ± precious metal-PGE deposits (Cu, Co, Ag, Au, Pd, and Pt) consist of Cu carbonate minerals (after chalcocite and chalcopyrite) and fine-grained quartz that have …
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The Nannihu ore field is largely represented by the Nannihu Mo-W deposit, Luotuoshan Zn-Cu-W deposit, and Lengshuibeigou Pb-Zn-Ag deposit. Mo-W mineralization at Nannihu occurs in the contact zone between the Nannihu intrusion and the wall rocks, showing typical characteristics of the porphyry-type deposit.
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Hence the Tiemurt Pb-Zn-Cu deposit provides an opportunity to investigate the Pb-Zn-Cu accumulation from the primary VMS to later deformation-metamorphism processes. In …
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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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The Southern Permian basin in central Europe contains a number of important high-grade sediment-hosted Cu deposits. Laterally extensive stratabound Cu and Zn-Pb sulfide mineralized rocks are located at a major stratigraphic redox boundary, where coarse-grained continental sandstones of the uppermost Rotliegend Group are overlain by carbonaceous mudstones (T1) …
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The Cu–Pb–Zn ore bodies are layered, veined, ... Fig. 7) suggests that the age result for the phlogopite sample from the skarn Cu–Pb–Zn ores in the Wulonggou gold ore field is reliable (Zhai et al., 1998). These results of plateau and inverse isochron ages are slightly younger than U–Pb ages of magmatic rocks including granodiorite, ...
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There are two ore-forming stages for Cu-Pb-Zn mineralization in the Huogeqi deposit, including the main-stage Cu-Pb-Zn mineralization and late-stage Cu mineralization …
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PDF | On Mar 1, 2023, Yongfei Tian and others published Recognition of the Xiayu intermediate-sulfidation epithermal Ag-Pb-Zn-Au(-Cu) mineralization in the East Qinling polymetallic ore belt ...
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The Tonggou deposit is a porphyry Cu and vein-type Cu-Zn mineralization system located in the Bogda Orogenic Belt, north of Eastern Tianshan. Systematic fluid inclusion analyses were performed on granular quartz from the magnetite–quartz stage and pyrite–chalcopyrite–quartz stage from the porphyry Cu mineralization. During the early stage …
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To help constrain the conditions of ore formation of the Cu–Pb–Zn veins, quartz from each sulphide-bearing stage was made into doubly polished thin-sections (< 0.30 mm thick) for FI …
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Porphyry Cu–Au–Mo–epithermal Ag–Pb–Zn–distal hydrothermal Au deposits in the Dexing area, Jiangxi province, East China—A linked ore system ... The most prominent features of orogenic-type gold deposits are ore-forming fluids enriched in CO2 and 18O, low- to mediumsalinity, and a temperature range from 250 to 350 °C (Goldfarb et ...
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The estimated reserves based on the analyses of samples collected from 25 drill cores established in the sector go back to 568 110 Tons of ore with 3.79% Zn, 0.69% Pb, 1.02% Cu, 98.30ppm Ag and 0. ...
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Representative LA-ICP-MS time-resolved depth profiles for pyrite grains of various types from the Kateba'asu gold deposit. (a) The strong signal intensity of Co, Ni, Ag, As, Bi, …
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However, the isotopic composition of disseminated primary ore is more variable (206 Pb/ 207 Pb = 0.98–1.05 and 208 Pb/ 206 Pb = 2.26–2.34 respectively) which argues either for a primary variability of the isotopic composition of lead bound in ore or for mixing two sources of Pb (the ore and host rock lead). The isotopic composition of Pb in ...
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The Zn-Pb orebodies are hosted in the skarn developed between the Dawabulake intrusion and the carbonate rocks of the Hudukedaban Formation (Fig. 4 A-B). The Dawabulake intrusion is occurred as quartz monzonite in the Halegati Fe-Cu ore-field and as granodiorite in the Muzuke Zn-Pb ore-field (Fig. 4 A). A total of 15 Fe-Cu-Zn-Pb orebodies that ...
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Deposition of ore minerals results from changes to physiochemical parameters, including temperature, pressure, pH, redox state and total concentration of ligands.
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tin, and gold. Of these metals, zinc, lead, silver, tin, and bis-muth are produced dominantly from deposits of several styles but all sharing the following major features: (1) polymetallic (Cu-Zn …
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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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