Abstract. At Colquijirca, central Peru, a Miocene diatreme-dome complex is associated in space and time with several large epithermal polymetallic (Cu-Zn-Pb-Au-Ag) deposits of …
The Shagou deposit, located in the eastern Qinling orogenic belt, central China and hosted by the Taihua Supergroup, is a large-sized Ag–Pb–Zn deposit and has proven reserves of 1.54 million tons of ore with grades of 767 g/t Ag, 13.24% Pb and 4.31% Zn.The ore-forming fluids have been previously interpreted as products of direct …
Pyrite geochemistry has been extensively used to reveal ore-forming processes in diverse ore deposits, but its application in skarn systems is not well understood. The Huangshaping deposit in the Nanling Range (South China) uniquely develops W–Sn–Pb–Zn and Cu–Pb–Zn skarn mineralization systems, and both two …
The Fudian ore field in the southern North China Craton hosts the giant Donggou porphyry Mo deposit and several Pb-Zn-Ag vein deposits. Ore genesis of the Pb-Zn-Ag deposits …
The Yinshan Cu–Au–Pb–Zn–Ag deposit is located in Dexing, South China. Ore bodies are primarily hosted in low-grade phyllite of the Neoproterozoic Shuangqiaoshan Group along EW- and NNW-striking fault zones.
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 …
The timing of the magmatic-hydrothermal activity is of importance for understanding the Cu–Pb–Zn mineralization process. The Cu–Pb–Zn skarn …
The formation of Pb-Zn-Ag (Au-Cu) deposits in the study area and elsewhere in the Serbomacedonian-Rhodope district is genetically related to Tertiary magmatic activity (e.g. Heinrich and Neu ...
The orogenic mineral system (Figure 2.7.1) unites a diverse group of mineral deposits that form during orogenesis, and include lode gold and Cobar-type Cu-Au-Zn-Pb-Ag deposits. These deposits form in response to major orogenic events caused by accretion or changes in subduction direction or dip.
Quantitative mineralogical and geochemical data demonstrate that the highest base metal (Cu, Zn, and Pb) concentrations are associated with carbonate-rich …
The Niujuan-Yingfang Pb-Zn-Ag deposit in northern North China Craton (NCC) is hosted at the contact zone between Permian biotite monzogranite and Hongqiyingzi Group migmatitic gneiss. The orebodies are structurally controlled by NE-trending F1 fault. Mineralization can be divided into three stages: (1) siliceous-chlorite …
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 …
In order to analyze the concentrations of Ag, As, Au, Cd, Cu, Hg, Mn, Mo, Ni, Pb, Se, Sb, Te, Tl, W, and Zn in deep hydrothermal chloride waters at 195° to 320°C, and in shallow boiled chloride waters at 160° to 230°C, we sampled wells drilled to 3-km depth in geothermal systems of the North Island, New Zealand. Six of the systems are located …
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 ...
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 Huangtan Au–Cu–Zn deposit is an auriferous VMS-type deposit with auriferous tellurides orebody. • No clear systematic variation in the trace element distribution with different types of pyrite, chalcopyrite, sphalerite in the Huangtan Au–Cu–Zn deposit. Au–Te mineralization was formed in high ƒTe 2 conditions in the stockwork zone. ...
The Early Cretaceous magmatic rocks and diverse deposits in the Nannihu ore field collectively make up a giant magmatic-hydrothermal Mo-W-Cu-Pb-Zn-Ag …
The Haopinggou deposit in the northern Xiayu ore field (Fig. 2) is the only deposit in the region where both Au and Ag–Pb–Zn veins have been recognized, providing an ideal opportunity to study their formation, evolution, and interrelationships.In this paper, we first present textural and compositional data for pyrite from the Haopinggou deposit …
The ore-forming fluids in the Jiawula Pb-Zn (Ag) deposit and Mo mineralization evolved from a magmatic fluids. In contrast, the fluids in the Chaganbulagen Pb-Zn (Ag) deposit is dominated by meteoric water which obtained carbonaceous components from the carbonaceous strata of through water-rock interaction.
This indicates that the ore-forming metals (esp. Cu, Pb and Zn) ... China: a case study of orogenic-type Pb–Zn systems. Journal of Asian Earth Sciences (2012) J. Zhang et al. LA-ICP-MS trace element analysis of pyrite from the Chang'an gold deposit, Sanjiang region, China: implication for ore-forming process ... There is a distinct metal ...
Highlights Three large-scale ore deposits comprising the Dexing porphyry Cu-Au-Mo deposit, the Yinshan epithermal Ag-Pb-Zn deposit, and shear zone - hosted lode gold deposit in a Jurassic volcanic basin. Based on the detialed field investigation and previous studies three of them are proposd to be a mineral system around Middle …
Skarn mineral systems are one of the most common ore types in the Earth's crust, supplying significant proportion of the global Pb, Zn, W, Sn, Mo, Cu, Au, and Fe (Meinert et al., 2003, Meinert et al., 2005; Chang et al., 2019; Shu et al., 2021).They commonly have close temporal and spatial relationships to igneous intrusions, and are …
Abstract La Colorada, in Zacatecas State, Mexico is an epithermal Ag-Zn-Pb system hosted in Mesozoic calcareous sedimentary rocks overlain by Tertiary volcanic rocks. The dominant vein is associated with a fault system that accommodates Tertiary normal and strike-slip faulting. The ore consists of fahlore [(Cu,Ag)10(Zn,Fe)2(Sb,As)4S13], …
The introduction of a porphyry–breccia–intermediate–sulfidation epithermal Ag–Pb–Zn–Au mineralization system enhances ... P.D., Rowland, J.V., 2020. Chapter 3: Structural Controls on Ore Localization in Epithermal Gold–Silver Deposits: A Mineral Systems Approach, Applied Structural Geology of Ore–Forming Hydrothermal …
Middle Triassic Cu–Pb–Zn Skarn mineralization in the Wulonggou gold ore field, Eastern Kunlun Orogen, NW China: Insights from phlogopite Ar–Ar and zircon …
The Porphyry-epithermal system is well developed worldwide, characterized by the development of proximal porphyry/skarn Cu–Mo mineralization and distal epithermal Au–Ag–Pb–Zn mineralization (Hedenquist and Lowenstern 1994; Sillitoe 2010; Catchpole et al. 2015).The spatial and temporal links between high-sulfidation epithermal Au–Ag …
The pyrite from the early disseminated and massive Cu–Mo–Pb–Zn ores has high As/Sb and low Ni/As ratios, indicating that the ore-forming fluids and materials directly separated from the ...
1. Introduction. Volcanogenic massive sulfide (VMS) deposits are strata-bound accumulations of sulfide minerals that precipitated at or near the seafloor in spatial, temporal, and genetic association with contemporaneous volcanism and are one of the most important sources of metals (Zn, Cu, Pb, Ag, and Au) in the world (Franklin et al., …
The Baiyinnuoer Zn–Pb–(Ag) deposit (32.74 Mt ore with grades of 5.44% Zn, 2.02% Pb, and 31.36 g/t Ag), located 5 km north of the Haobugao deposit, is the largest Zn–Pb deposit in northern China (Jiang et al. 2011; Figs. 1 and 2). Two ore-bearing belts (Southern Belt and Northern Belt) have been discovered in the Baiyinnuoer area.
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 Duobaoshan Au-Cu polymetallic belt, where the Erdaokan Ag-Pb-Zn deposit and many porphyry Cu-Mo deposits, epithermal Au deposits, and skarn type Pb-Zn deposits are located (Han et al., 2004, Cai et al., 2021, Yuan, 2020), is one of the most important metallogenic belts in NE China.The Duobaoshan polymetallic belt is situated …
Fluid inclusion and mineralogical evidence for boiling of metal-bearing solutions is found in gold-rich portions of the eastern Sierra system; this part of the …
The Qin-Hang porphyry–skarn copper polymetallic ore belt (QHB) is located along a significant NE–SW-trending Neoproterozoic suture in South China, which separates the Yangtze Craton and Cathaysian Blocks (Fig. 1a; Mao et al. 2011a), containing several large and super-large W, Sn, Cu, Au, Pb, Zn, Ag, and polymetallic deposits.The QHB is …
Ore-forming age of the skarn Zn-Pb mineralization has been carried out by means of zircon U-Pb dating on the causative intrusions, Sm-Nd dating on the skarn minerals, Rb-Sr and Re-Os dating on ore minerals, and is concentrated in 370–290 Ma (Table 2), suggesting an intimate temporal and genetic relationship between the skarn …
1. Introduction. The United Nations Environment Programme (UNEP) International Resource Panel (IRP) estimates that natural resource use will double by 2050 if current patterns of consumption are maintained by a global population that may grow from 7.9 to 9.7 billion people (UNEP–IRP, 2020).Minerals (non–metallic minerals in particular) …
1. Introduction. Skarn deposits are typically developed within or adjacent to hypabyssal intrusions of carbonate rocks (Meinert et al., 2005).They represent an important source of Cu–Fe–Au, Pb–Zn–Ag, and W–Sn globally (Einaudi et al., 1981, Meinert, 1992).Vein-type Pb–Zn ± Ag mineralization commonly develops in the distal zones of …
Zhai et al. (2020) summarized the geological characteristics and genesis of these vein-type Ag-Pb-Zn deposits, including: i) sulfide-rich ore composed of galena, sphalerite, and a variety of Ag-bearing sulfosalts and gangue minerals of quartz and calcite; ii) Ag-Pb-Zn veins controlled by faults, and spatially associated with sericitization and ...
There are giant gold deposits such as Muruntau, Kumtor and Kalmakyr, world-class copper deposits such as Kalmakyr and Dal'neye, and super-large zinc-lead deposits such as Tekeli in western Tianshan forming a giant Au-Cu-Zn-Pb metallogenic belt, attracting the attention from the world. Yet it is hoped to find gold, copper and zinc-lead deposits significantly in …
