Copper sulfides and Au are associated with moderate to strong enrichments of several of the following groups of elements which may attain ore grade in some deposits: Ag, Co, Ni, Bi, Se, Te, In and/or U, LREE, F, Ba, Mo; in most deposits there are little or no significant enrichments in Zn, Pb, Cd, As, Sb, W, Sn, Ta, Nb or Li, although rare ...
2.4 Iron oxide copper-gold mineral system; ... Ag-Zn-Pb and Au-Cu deposits, and Cu-Au and Zn-Pb-Ag skarn deposits. More detailed descriptions of aspects of the porphyry-epithermal mineral system can be found in Buchanon (1981), White and Hedenquist (1995), Seedorff et al. (2005), Simmons et al. (2005) and Berger et al. (2008). ... In …
Besides the many Mesozoic W–Sn–Mo–Bi–Cu–Pb–Zn–Au–Ag ore deposits in South China, there are a few small-scale Mesoproterozoic to Neoproterozoic volcanic-hosted massive sulfide (VHMS) Cu–Zn deposits distributed along the easternmost part of the Qin-Hang Neoproterozoic suture (Wang and Zhao 1980; Huang 1992) and some …
Thus, the Dapingzhang volcanic sequence and associated Cu–Pb–Zn sulfide mineralization are different in time and geotectonic setting from other middle- to late-Triassic Cu polymetallic sulfide deposits in the west of the Lanping–Simao Block in western Yunnan, such as the Minle Cu deposit, the Guanfang Cu–Pb deposit, and the Wenyu Cu ...
In this study, we report the results of Rb–Sr isotopic analysis for sphalerite and pyrite samples from the Baiyinnuo'er orebodies, which yielded two isochron ages of …
Full size table. Additionally, a ... Crosta-PCA combination images mapping of ore minerals related to gold mineralization in the Dschang area: ... The concentration of …
The Luziyuan skarn deposit is the second largest Pb − Zn deposit in the Baoshan block, Yunnan Province, Southwestern China. Rhodonite is a widespread skarn mineral in the host rock, occurring as coarse-grained crystals and veins, and is closely associated with Pb − Zn mineralization. In-situ elemental analysis of rhodonite from …
In contrast, pyrite grains from the underlying stockwork and veins (V-Py1, V-Py2, and V-Py3) are characterized by low Au, Ag, Cu, Zn, Pb, Sb, and Tl concentrations coupled with high Co, Se, Te, and Ti concentrations and high Co/Ni ratios, which are interpreted in terms of reducing and high-temperature ore-forming fluids.
A great example of such a reaction is the displacement of copper from copper sulphate by zinc. The chemical equation for this reaction is given by: Zn (s) + CuSO 4 (aq) → ZnSO 4 (aq) + Cu (s) This concept has several practical applications in the extraction of metals.
The Tianqiao medium-size Pb–Zn deposit along the Yadu–Mangdong fault has been mined for over past decades (Mao et al. 2001; Jin 2008).Numerous studies of this deposit include geology, geochronology, and geochemistry (Mao et al. 2001; Jin 2008; Zhou et al. 2013, 2014; Li et al. 2016).Jin and Mao et al. considered that the Tianqiao deposit …
The large Bafangshan-Erlihe Zn-Pb-Cu deposit, located in the north of the Fengtai ore cluster, contains over 1.1 Mt of ore comprised of 7.4% Zn, 1.3% Pb, and 0.87% Cu on average (No. 717 Geological Party of Northwest Geological Exploration and Mining Bureau for Nonferrous Metals, 1994), with recoverable Ag, Au, Cd and Hg.
The Huangshaping deposit represents the largest Pb Zn polymetallic skarn deposit in the southern Hunan district of Nanling Range (South China), which is uniquely characterized by having both Jurassic W–Sn–Pb–Zn and Cu–Pb–Zn skarn mineralization (reserves: 152.9 kt WO 3 @ 0.2 %, 43.2 kt Mo @ 0.06 %, 761.3 kt Pb @ 3.55 %, 1529.1 …
Leaching Behavior of Cu, Zn, and Pb Using Design of Experiment. Table 3 summarizes the experimental setup performed and the results obtained for the desired metals Cu, Zn, and Pb in a 4-h experiment according to the 3 3 Box–Behnken design. As shown, approximately 30% of Cu and Zn were leached within 4 h in experiment …
The concentration of base metals (Cu, Zn, and Pb) in the sandstone samples is generally very low, except for those samples adjacent to the T1 (Cu = 1% in SHN7, …
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 …
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 …
Download: Download full-size image; Fig. 1. ... Combined with mineralogy study, the spikes of Cu, Pb, Zn, Bi and Ag in laser ablation spectra may also be recognition of mineral inclusions and/or nanoparticles. ... Arsenopyrite-pyrite association in an orogenic gold ore: Tracing mineralization history from textures and trace elements. Econ. Geol ...
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.
The giant Dongshengmiao is the third largest Pb–Zn deposit in China (Wang et al. 2014), with total metal reserves of 4.83 Mt Zn (@ 2.85%), 0.96 Mt Pb (@ 0.67%) and 0.11 Mt Cu (@0.86%; Long 2009).The enrichment of massive pyrite accompanying Zn–Pb–Cu mineralization also makes it possible to make sulfur acid through mining pyrite.
To address this research gap, four peatland cores with different distances to a gold placer in the northern Great Hinggan Mountains were selected in this study. …
Three orebodies are developed in the Huogeqi deposit, termed as ore belts Nos. 1, 2, and 3, respectively (Fig. 2). Among these ore belts, the No. 1 is the largest …
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 …
The experimental design methodology (RSM) was conducted to investigate the effect of parameters such as pH, collector, depressant, dispersant, preparation time and size of …
Minor and trace element substitution in sphalerite is largely governed by the similarity of the size of a relatively large number of other ions to that of tetrahedrally-coordinated Zn 2+, as well as their affinity for tetrahedral coordination.The chemical structure of ZnS doped with Fe 2+, Cd 2+ and other bivalent cations is discussed by …
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 sphalerite, respectively, and silver assaying 157.9 g/t is closely associated with these sulfides; sulfides are present in amounts of 80.31% of the total, traditional gangues only …
However, too few chemical analyses of rare metals have been performed in these deposits. As an example, Fig. 12 reports a compilation of Ge and Cu contents in sphalerite analyzed in Pb-Zn(-Cu) deposits worldwide. These deposits are mostly related to low-temperature hydrothermal fluids (~ 100–250 °C) with no- or only low-grade …
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 and physico-chemical conditions [6,7,8,9,10,11,12,13,14].
Download: Download full-size image; Fig. 1. a. ... The 26 Au–Cu–Pb–Zn orebodies in the ore district occur in the rhyolite porphyry and Ashele Formation tuff beneath the rhyolite porphyry (Fig. 3 a). The L1 orebody is the largest, with a length of 490 m and a thickness of 0.69–81.00 m, and it extends downward to a depth of 485 m ...
The Dongping gold deposit, located near the northern margin of the North China Craton, contains ore bodies spatially associated with the Devonian Shuiquangou syenite, Cretaceous Shangshuiquan granite, and Archean metamorphic rocks. Major and trace elements and S–Pb isotopes of pyrite from two stages of gold-quartz veins and wall …
The formation of high-grade gold ore has always been attractive, mostly located in Precambrian gold deposits with various mechanisms. Yet, in the orogenic Bangbu gold deposit, Tibet, we discovered that the coupled dissolution-reprecipitation (CDR) process and low melting point chalcophile elements (LMCE) -related melting are …
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 …
Ore reserves are around 0.5 Mt and grades are 3.21% Zn, 0.58% Pb, 0.86% Cu with 83.31 ppm Ag and 0.41 ppm Au. Sulphide mineralizations occur as a local replacement of carbonate bars rocks.