The Huangshaping polymetallic deposit is located in southeastern Hunan Province, China. It is a world-class W–Mo–Pb–Zn–Cu skarn deposit in the Nanling Range Metallogenic Belt, with estimated reserves of 74.31 Mt of W–Mo ore at 0.28% WO 3 and 0.07% Mo, 22.43 Mt of Pb–Zn ore at 3.6% Pb and 8.00% Zn, and 20.35 Mt of Cu ore at 1.12% Cu. The ore district is …
The Maozu Zn-Pb deposit, located in the western margin of the Yangtze Block (Fig. 1 a), is an important part of the Upper Yangtze Zn-Pb metallogenic province in South China (Fig. 1 b; Zhou et al., 2018a).This province consists of >400 carbonate-hosted Zn-Pb deposits (Liu and Lin, 1999, Zhou et al., 2013a, Wang et al., 2014) and accounts for 27% of total Zn + Pb …
The Liangyan Zn-Pb deposit in the southeastern part of the SYGMP has the reserves of ∼ 40000 t Zn + Pb and ∼ 120 t Cd (Liao et al., 2020).This deposit is hosted in Carboniferous dolostone/limestone and structurally controlled by the Yadu-Mangdong thrust fault and Yadu-Wogong anticline (Fig. 2; Wan, 2015, Zhou, 2017).The Zn-Pb orebodies together …
Here, we analyzed trace elements in pyrite and sphalerite and fluid inclusions in sphalerite, celestine, quartz, and dolomite to seek insights into the origins of the ore-forming …
The North Break Zone of the late Precambrian Otavi carbonate platform sequence in Namibia : stratigraphic setting, petrography and relationship with Tsumeb Cu-Pb-Zn deposit /
The Pb–Zn–Cu "polymetallic" orebodies occur in the center of the Songkengwu anticline (Fig. 2, Fig. 5 b). The No.II Pb–Zn–Cu "polymetallic" orebody was traced for 168 m downdip, 170 m along strike, and is 2.3–35.1 m across, with the trend to …
Solutions of Zn 2+ + NaCl reacted with sulfur, calcite (samples R5-3, R5-4; Figs. 1A and 1B), and dolomite (sample R3; Fig. 1C) to produce sphalerite and anhydrite with coincident dissolution …
A giant porphyry-skarn-epithermal Mo-W-Cu-Zn-Pb-Ag metallogenic system in the Nannihu ore field, southern North China Craton: Constraints from new geochronological and pyrite geochemical data ... These porphyries have been dated at 158 to 112 Ma using in-situ zircon U-Pb geochronology (Li, 2005, Mao et al., 2010, Li et al., 2017b). 3.
Plan of the Yinshan porphry Cu–Au vein-type Ag–Pb–Zn deposit in the Dele Mesozoic basin. There is an apparent mineralization zonation with the Cu–Au–S in the center and Ag–Pb–Zn at the outer margin (modified from Ye, 1987, Li …
The Baoshan deposit is one of the important Cu-Pb-Zn deposits associated with granitic rocks in the Nanling Range, South China. Here, we present He and Ar isotope data for the Baoshan deposit to decipher the contributions of mantle-derived volatiles and heat to its Cu-Pb-Zn mineralization. The ore-forming fluids in sphalerite and pyrite exhibited 3He/4He ratios up …
The Medna-Plakalnitsa and Sedmochislenitsi mines thus operated for around 90 years until closure in 1998 with a total recorded production for Medna-Plakalnitsa (1902-1978) of 649,400 tonnes at 1.41% Pb, 1.43% Zn and 1,380,400 tonnes at 1.45% Cu and for Sedmochislenitsi (1950-1995) of 10,673,200 tonnes at 1.00% Pb, 0.63% Zn, 44 g/t Ag and ...
When accounting for industrially impacted sites and underlying geology, results show a clear trend towards heavy Cu isotope enrichment in groundwater proximal to known …
ISO 29581-2:2010-03 - Cement - Test methods - Part 2: Chemical analysis by X-ray fluorescence; DIN EN ISO 12677:2013-02 - Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method ; DIN EN ISO 21068-1:2008-12 - Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and …
The effects of Cu on the corrosion rate or mode of the alloy are controversial. It has been reported that the addition of Cu has little effect on the corrosion rate [14], but a previous study has confirmed that the presence of Cu can cause galvanic corrosion and accelerate corrosion [15].Lin et al. [16], [17] summarized the dual roles of the CuZn 5 second phase: one …
The Paleozoic Boluokenu Au–Cu–Pb–Zn metallogenic belt is associated with an ocean–continent ... Fig. 5), and small amounts of non-sulfide minerals, such as quartz, dolomite, and calcite. In contrast, vein-type mineralization ores ... This age approximately corresponds to the new zircon U–Pb ages of diorite (384 Ma; Li et al ...
Genesis of the Assif El Mal Zn Pb (Cu, Ag) vein deposit. An extension-related Mesozoic vein system in the High Atlas of Morocco. Structural, mineralogical, and …
descriptive model of kipushi cu-pb-zn By Dennis P. Cox and Lawrence R. Bernstein DESCRIPTION Massive base-metal sulfides and As-sulfosalts in dolomite breccias …
The sediment-hosted Zn–Pb–Cu–Ag deposits in the Lanping foreland fold belt share some similarities with MVT-, SST-, SSC-, and SEDEX-type deposits in that there is a lack of any igneous affinity and instead must relate to activities of basinal fluids. ... 2006), and the Jinman Cu deposit, etc. (Yan and Li, 1997, Ji and Li, 1998, Liu et al ...
The Amensif Zn-Cu (Pb-Ag-Au) polymetallic deposit is located on the northern flank of the western High Atlas (Fig. 1 B).This deposit was discovered in 2006 by the Amensif Manajim Company and later sold to Guemassa Mining Company (CMG), a division of the international company Managem which develops the research studies in this area.
This world-class Zn-Pb province hosts deposits known as Irish type, such as the Navan, Lisheen, and Silvermines (110 Mt,22 Mt,and 17 Mt of Zn and Pb resources, respectively, Andrew, 1986;Shearley ...
Typical MVT ore deposits in the Viburnum Trend are Pb-dominant and occur mainly in the upper third of the Bonneterre Dolomite. Recently, unusually Cu-(Ni-Co)-Zn-rich ores have been …
The placement of Pb-Zn orebodies at the upward zoning of Cu-Co orebodies could be attributed to the higher solubilities of Pb and Zn chloride complexes in hydrothermal fluids, relative to Cu ...
Float Metals One-by-One Selectively: Since our objective is to sequentially float Copper, then Lead, than Zinc while rejecting Pyrite, let us explore how we can separate Cu/Pb/Zn from Fe: pH 6-6.5 is where Pb/Zn/Fe are least hydrophobic while Cu is most hydrophobic. Great pH to Recover Cu. pH 7.5-8 is where Zn/Fe are least hydrophobic while Pb ...
The Tayuan (Cu–Mo)–Pb–Zn deposit is located in the northern part of Daxinganling, NE China. Lenticular ore body occurs in the skarn zone. The skarn minerals mainly include garnet, pyroxene, epidote and wollastonite. Electron microprobe analysis shows that the end member of garnet is mainly andradite (Ad62–97Gr11–45), the pyroxene is mainly …
There is an increasing concern on heavy metal leaching from the soils amended with sewage sludge. A column study was conducted to examine the extent of leaching of five important heavy metals (Cd, Ni, Pb, Cu and Zn) from an acidic sandy soil amended with different dolomite phosphate rock (DPR) fertilizers (an application rate of 1% fertilizers) developed from DPR …
Here, we focus on the MVT Pb-Zn mineralization, primarily on the influence of mineralization temperature and the type of brines, using geochemical simulation experiments to verify the relationship ...
In the western Yangtze Block, South China (Fig. 1 a), there are >400 Pb-Zn deposits hosted in late Ediacaran to middle Permian carbonate rocks (e.g. Zhou et al., 2013a, Wang et al., 2014, Zhang et al., 2015), which form the giant Upper Yangtze Pb-Zn metallogenic province (Zhou et al., 2018a).Although the mineralization style of these Pb-Zn deposits is …
In comparison, the sulfides from the Pb–Zn–(Ag) deposits have higher 207 Pb/ 204 Pb values (15.6637 to 15.7331, mostly > 15.70) than the Fe–(Cu) deposits (15.6186 to 15.6848) and the Pb–Zn–Fe–Cu deposits (15.6163 to 15.7197), indicating that the metals of Pb–Zn–(Ag) deposits were derived from the upper-crust magma, whereas the ...
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. ... over, mineral systems (Large et al., 2009; Makoundi et al., 2014; Zhang et al., 2014, Zhang et al., 2015; Li et al., 2016, Li et al., 2018). The Co ...