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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., 2011b), the Middle …

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Age and primary architecture of the Copperton Zn-Cu VMS …

Stratabound epigenetic sulphide Zn-Pb-Cu ore deposits of the Central African Copperbelt in the Democratic Republic of Congo and Zambia are mostly hosted in deformed shallow marine platform carbonates and associated sedimentary rocks of the Neoproterozoic Katanga Supergroup. ... while pyrite associated with gold mineralization yielded a Pb–Pb ...

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Copper-Lead-Zinc ores

The following Danafloat™ collectors should be initially considered for complex Cu-Pb-Zn ore flotation: Cu-Pb Flotation: Danafloat™ 271 and 571 for oxidized copper and lead minerals. …

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The geochemistry, mineralogy and maturity of gossans derived …

Zn (Pb) carbonates, Zn-hydrosilicates and associated hydrated phases directly replace the primary ore bodies or fill cavities and pods along fractures within marble are genetically related to the ...

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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 part. Economic metals are also …

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Geochemical correlation of gold placer and indication of Au-Cu-Pb-Zn …

Gold deposit based on the mineralization of gold and other ore minerals in Arinem area and its surrounding was found in the quartz vein. ... This paper discusses characteristics of some key features of the primary Buru gold deposit as a tool for a better understanding of the deposit genesis. ... Figure 12. Components of Au-Cu-Pb-Zn rotation ...

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Genesis and Evolution of Pb-Zn-Ag Polymetallic Deposits

The Pb isotopic composition of the sulfides from the Qiandongshan–Dongtangzi Pb-Zn deposit (with 206 Pb/ 204 Pb ratios of 18.06 to 18.14, the 207 Pb/ 204 Pb ratios of 15.61 to 15.71, and 208 Pb/ 204 Pb ratios of 38.15 to 38.50) is similar to that of the Late Triassic Xiba granite pluton, suggesting that they share the same Pb source. The ...

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CU, AU, AND ZN-PB SKARN DEPOSITS (MODELS 18b,c; …

CU, AU, AND ZN-PB SKARN DEPOSITS (MODELS 18b,c; Cox and Theodore, 1986; Cox, 1986; Theodore and others, 1991) ... that contain average ore grades greater than 1 gram of gold per tonne and are usually associated with intense retrograde alteration. Gold-bearing skarns may contain significant amounts of numerous other commodities,

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Geochemistry, mineralogy, and isotope composition of Pb, …

dated at 2175 ± 1 Ma (U-Pb zircon age; Schwartz and Melcher, 2003). The estimated ore reserves of the Perkoa are 6.3 Mt. with 14.5 wt.% Zn, 8.0 wt.% Ba,0.06 wt.% Pb, 24 ppm Ag, and 50 ppm Cu (Zida, 2002; MTMCI, 2015). The semitabular main ore body is 400 m long and has an average thickness of 10 m, whereas the hanging wall orebody has

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CU, AU, AND ZN-PB SKARN DEPOSITS (MODELS 18b,c; …

For example, the principal ore minerals in base and precious metal skarns are sulfide minerals, whereas the principal tin and tungsten ore minerals are the oxide and tungstate minerals …

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Developed Process Circuit Flowsheet of Al Amar Ore for …

Roasting the ore at 650 °C and subsequent leaching in boiling 20% HCl provides <84% of Zn, Cu, Pb, and Fe to the solution and leaves the gold in the residue. A high gold …

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Ages and Sources of Components of Zn-Pb, Cu, Precious Metal, …

Zinc-dominant carbonate replacement deposits (Zn > Pb; Ag ± Cu) resemble Mississippi Valley Type (MVT) Zn-Pb deposits in that they occur in karst and fault breccias in Mississippian limestone where the southern margin of the regional late Paleozoic foreland basin adjoins Proterozoic crystalline rocks of the craton.

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Superimposed multi-stage mineralization in the Qingchengzi Pb-Zn ore

(a) Lamellar orebody consisting of light brown fine-grained sphalerite from the Zhenzigou Pb-Zn deposit; (b) Extended tabular Pb–Zn orebody with width of 1–1.5 m and length of over 80 m, from the 270 m mining level of the Erdao Pb-Zn deposit; (c)Sacciform shaped orebody hosted in marble at the 300 m mining level of the Zhenzigou Pb-Zn ...

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Ore and Gangue Minerals of the Hera Au-Pb-Zn-Ag Deposit, …

Pb-Zn-Ag deposit, Cobar Basin, gold, tetrahedrite, gudmundite, scheelite INTRODUCTION. The Hera . Au-Pb-Zn-Ag deposit is located 5 km southeast of Nymagee (a historic copper mining town) (Figure 1), central western New South Wales. Early exploration history of the Hera deposit dates to 1974 when the mineralised system containing the deposit was

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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 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 …

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Pb-Zn-Cu accumulation from seafloor sedimentation to …

The Tiemurt Pb-Zn-Cu deposit (metal reserve: 0.29 Mt (Pb + Zn) and 0.14 Mt Cu) is hosted in the Kangbutiebao Formation volcanic-sedimentary rocks in the Chinese Altay Orogen, NW China.

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Cordilleran Epithermal Cu-Zn-Pb-(Au-Ag) Mineralization in …

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-Pb-Ag-Au) suite; (2) zoned from inner Cu-bearing to outer Zn-Pb−bearing ores; (3) sulfide-rich character, com-

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Base Metal Ores

Base metals comprise non-ferrous metals such as Cu, Pb, Zn and Ni which have lot of industrial applications. Wang et al. [57] determined Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sb, Ti, W, and Zn in a variety of base metal ores including oxides, sulfides, and silicates by MP-AES after the samples were dissolved using a 6-channel infrared digester. The ...

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Revealing the orogenic genesis of Huogeqi Cu-Pb-Zn deposit: …

Orogenic-type gold deposit is of great economic importance worldwide and its ore-fluid is believed to have poor ability in transporting base metals such as Cu, Pb, and Zn.

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Contrasting regimes of Cu, Zn and Pb transport in ore-forming

Request PDF | On Feb 1, 2015, Richen Zhong and others published Contrasting regimes of Cu, Zn and Pb transport in ore-forming hydrothermal fluids | Find, read and cite all the research you need on ...

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Cordilleran Epithermal Cu-Zn-Pb-(Au-Ag) Mineralization in the

The crosscutting relationships and zoning patterns indicate that during the main ore stage, the inner Cu zones progressively overprinted the Zn-Pb zones. Evidence for the subsequent contraction of the mineralization front is also recognized.

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Metallogeny of the Dagangou Au‐Ag‐Cu‐Sb

The rocks are characterized by sericitization, carbonization, and silicification. Three Cu ore bodies, two Cu-Ag ore bodies, and four Cu-(Au)-mineralized bodies have been identified in SB I (Table 1). (a) K1 Cu ore body: K1 is approximately 25 m long and 0.5 m wide, dips to the north at 50°–60°, and has the same shape as the shear zone.

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Characterization of primary geochemical haloes for gold …

Results of analyses show that, in the Huanxiangwa deposit, gold mineralization is characterized by a Au ± Ag ± Cu association, base-metal mineralization by a Zn–Pb–Ag–Cu ± As ± Sb ± Mo association, supra- and/or near-ore primary haloes in mineralized altered rocks by an As ± Sb ± Bi ± Ag ± Au ± Pb association, sub-ore primary ...

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The Chah-Mesi epithermal Cu-Pb-Zn-(Ag-Au) deposit and its link …

Primary fluid inclusions in sphalerite and quartz from the banded and crustiform veins are low saline aqueous H 2 O-salt inclusions with only traces of CO 2. ... The polyphase IS veins contain gold adjacent to the HS dominated ore zone. ... The polymetallic Chah-Mesi Cu-Pb-Zn-(Ag-Au) vein type deposit, located near to the Meiduk porphyry Cu-(Mo ...

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Primary geochemical haloes and alteration zoning applied to gold

The third component (PC3) exhibits the greatest difference between the association of As-Zn-(Cu Pb) and Ag-Hg-S-(gold) corresponding to base metals and gold mineralization, respectively. Fig. 8 a shows the binary variation diagram (PC2-PC3) for this group of samples. Two antipathetic associations of the ore-related indicator elements can be ...

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Contrasting regimes of Cu, Zn and Pb transport in ore-forming

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 compare the roles of …

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Comprehensive review of the environmental impacts of mining …

This review paper presents an in-depth synthesis of the environmental aspects associated with the mining of the Baiyinchang Cu–Zn–Pb deposit in China. The review covers contamination by atmospheric deposition and sewage irrigation, soil contamination, and ecosystem health to evaluate current environmental conditions, identify potential impacts, and …

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Copper-Lead-Zinc ores

The following Danafloat™ collectors should be initially considered for complex Cu-Pb-Zn ore flotation: Cu-Pb Flotation: Danafloat™ 067 Danafloat™ 068 Danafloat™ 070 Danafloat™ 233 Danafloat™ 245 Danafloat™ 345 Danafloat™ 507E Danafloat™ 271 and 571 for oxidized copper and lead minerals. Selective Zn Float: Danafloat™ 123 ...

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Gold and antimony metallogenic relationship of the Awanda Au …

Trace element compositions reveal that ore minerals display positive correlations between As and Au-Sb-Cu-Zn-Pb, implying a common source for these elements. ... Available fluid inclusions data suggested that different crustal levels and temperature of two ore-stage for the Awanda orogenic gold deposit ranges from (2.8–5.4 km and 270 ∼ 380 ...

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Ages and Sources of Components of Zn-Pb, Cu, Precious Metal, …

They share characteristics with copper ± precious metal-PGE and gold ± silver deposits including fine-grained quartz replacement of carbonate minerals in ore breccias and …

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