Granite-related ore deposits: an introduction

Al, Ti, Li, and Ge are the most abundant trace elements in the Kleivan quartz and each element shows a characteristic evolution during differentiation of the granitic magma. ... Special Publications Granite-related ore deposits: an introduction A. N. Sial, Jorge S. Bettencourt, Cristina P. De Campos, et al. Geological Society, London, Special ...

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Gold : Mineral | Properties, Formation, Mining, …

Mining and extraction: Gold is typically mined from the Earth using various methods, such as placer mining, lode mining, and heap leaching. Once extracted, gold ore is processed to extract the gold metal using techniques …

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Lithium | Definition, Properties, Use, & Facts | Britannica

Occurrence and production. Discovered in 1817 by Swedish chemist Johan August Arfwedson in the mineral petalite, lithium is also found in brine deposits and as salts in mineral springs; its concentration in seawater is 0.1 part per million (ppm). Lithium is also found in pegmatite ores, such as spodumene (LiAlSi 2 O 6) and lepidolite (of varying structure), or in …

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A systematic review of sustainable gold extraction from raw ores …

Physical processing techniques that can be applied to produce gold concentrates, pre-treatment processes that can enable the leaching of locked gold ores, and gold purification …

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Gold source and ore-forming process of the Linglong gold deposit

Pyrite in the Jiaodong gold province can be used to effectively trace the source of ore-forming materials and the ore-forming process because it is the main gold-bearing mineral and developed in the whole metallogenic stage (Li et al., 2018, Tang et al., 2021).Despite the analysis of in-situ elemental and isotopic compositions of pyrite in various deposits within the …

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Geological and isotopic constraints on ore genesis, Huangjindong gold

On the basis of these geological and isotopic data, Huangjindong is interpreted as an orogenic gold deposit. The gold ore bodies show classic structural controls, being adjacent at the province scale to the crustal-scale Chang-Ping Fault but located in thrusts and associated tight anticlinal fold hinges that lie in corridors between markedly oblique, relatively brittle fault …

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Gold remobilization of the Sanshandao gold deposit, Jiaodong …

Pyrite is a common auriferous mineral in hydrothermal vein-type gold deposits (orogenic-type and intrusion-related ones). Trace elements composition of pyrite is closely related to the ore-fluid physicochemical conditions (e.g., temperature, pH, oxidation state, and sulfur fugacity; Gregory et al., 2019).The pyrite texture and morphology can reflect replacement or …

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The gold mineral systems of the West Qinling orogen, central …

The consistency of ore-forming material sources and initial ore-forming fluid components, and the differences in geological factors such as ore body emplacement depth and structure led to the diversity of ore types, ore mineral assemblages and ore-forming element assemblages of gold deposits in the orogenic, which constituted a giant orogenic ...

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Establishing thE ProcEss MinEralogy of gold orEs

mineralogy helps address issues and problems related to gold ore processing. It provides useful information on process selection, flowsheet development, recovery improvement and reagent …

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Spatial coupling relationship between faults and gold deposits in …

Such studies have also found that the occurrence of gold deposits superimposes the positions of NNE-NE trending faults and E-W trending basement structures (Li, 2002), fault bends or intersections (Li, 2002, Song et al., 2014), and wide faults or branching fault development, and that ore bodies mainly occur in the footwalls of faults ceiled by ...

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Late Triassic orogenic gold mineralization along the northwest …

The Phapon gold deposit in northern Laos is an exception as 90 % of gold ore bodies consist of auriferous calcite veins (Li et al., 2011, Guo et al., 2019a). This deposit has been mined since 2017 and has indicated and inferred gold resources of 20 tonnes at an average grade of about 5 g/t Au.

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Biotechnological Approaches to Facilitate Gold …

Double refractory gold ore (DRGO) not only include ppt levels of gold grains locked in sulfide minerals but also a problematic amount of carbonaceous matter. This causes a significant recovery loss of gold during …

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Fluid origin and critical ore-forming processes for the giant gold

Introduction. The Jiaodong ... In the Jiaodong deposits, the extensive and wide wall-rock alteration zone indicates high ore-fluid fluxes (Li et al., 2013; Lan et al., 2023). Given the low gold content in ore fluids (below the detection limit of LA-ICP-MS; Wang et al., 2022) and explosive mineralization at ∼ 120 Ma for the Jiaodong gold ...

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Complete Extraction and Recovery of Gold from Double Refractory Gold

Cyanidation, a conventional process to extract gold from gold ores, has been used for over 130 years in industrial mining because of the high efficiency and rate of formation of Au(CN) 2 − and the high recovery efficiency by adsorption of Au(CN) 2 − on activated carbon. However, carbonaceous refractory gold ores are not targeted for recovering gold because …

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Yanshanian (Late Mesozoic) ore deposits in China

In addition to the 171-153 Ma magmatic-hydrothermal copper systems consisting of porphyry, skarn, and vein-type deposits in the Au-Ag-Sn-W-Sb-Cu-Pb-Zn-U metallogenic belt in the southeastern China ...

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Cyanidation of Refractory Gold Ores: A Review

In mineral processing, gold ores are commonly classified as (i) free-milling, (ii) refractory gold, and (iii) complex gold ore types, where the free-milling ore type has high gold recovery (>90% ...

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Unveil the Redox Evolution of Ore‐forming Fluids using Sulfur …

A compilation of δ 34 S values of sulfides from two subtypes of IS deposits (Au-rich and Ag-rich) from NE China shows that the δ 34 S values of sulfides from Au-rich IS deposits are systematically lighter than those of Ag-rich IS Ag-Pb-Zn deposit, indicating the ore-forming fluids of the former are more oxidized than the latter. We highlight ...

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Metals From Ores. An Introduction to Extractive …

Metals From Ores. An Introduction to Extractive Metallurgy ... tin, mercury, manganese, tungsten, and some ores of copper. Gold ores may yield only gold, but silver is a common associate. Nickel ores are always associated with …

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Ore geology, mineralogy and geochemistry of a fault-controlled

The Jinyinshan-Huangdi′nao Li deposit (12,000 t Li 2 O @ 0.60%) was recently discovered in southern Hubei Province, South China. This deposit is divided into two ore sections, namely, Jinyinshan (0.24–1.32 wt.% Li 2 O) and Huangdi′nao (0.20–0.47 wt.% Li 2 O). The dominant Li-bearing phase and mechanism for Li enrichment remain unclear.

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Ore genesis of the Baishawo Be-Li-Nb-Ta deposit in the …

The Baishawo deposit is a newly discovered large pegmatite type Be-Li-Nb-Ta deposit that located at the NE Hunan province, South China, with estimated reserves of 16,160 t BeO @ 0.084%, 11,280 t Li 2 O @ 0.85%, and 3450 t (Ta 2 O 5 + Nb 2 O 5) @ 0.201%.The mineralized pegmatites are mainly hosted in the two-mica monzogranite, suggesting a …

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The sources of ore-forming material in the low-sulfidation …

The Wulaga gold deposit, located in Heilongjiang province, NE China, is a subvolcanic rock-hosted, low-sulfidation epithermal gold deposit, and has an Au reserve of about 84 tons. The gold mineralization occurs in a crypto-explosive breccia, and is spatially and temporally associated with an Early Cretaceous granodioritic porphyry. Three ...

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The Sources of Ore-Forming Materials and Fluids for the

The Jinqingding gold deposit, characterized as an extra-large quartz-vein-type deposit, is located in the middle of the Mouping–Rushan metallogenic belt in the Jiaodong Peninsula, and there is still controversy over its sources of ore-forming materials and fluids. This paper divides the mineralization of Jinqinding gold deposits into four stages, based on a field …

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Ore-forming materials and fluids and ore-controlling factors of the

Jiaodong is the world's third largest gold mining district, accounting for one fourth of the total gold production in China (Chen et al., 2004, Fan et al., 2005).The Liaoshang gold deposit is located in the northeastern margin of the Jiaolai Basin, and its discovery represents a recent exploration breakthrough in recent years.

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Origin and evolution of ore fluid, and gold-deposition processes at …

The Early Cretaceous Taishang gold deposit is the largest deposit in the Linglong goldfield, Jiaodong Peninsula, with a pre-mining endowment of 326 t of gold.It is hosted in the 165–150 Ma Linglong biotite granite and controlled by the NEE- to NE-trending Potouqing Fault near the northern end of the regional Zhaoping Fault system.Hydrothermal alteration is well …

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Velocity Structure and Cu-Au Mineralization of the …

of the Paleo-Asian Ocean [19]. The Duobaoshan ore field is located in the northeastern part of NE China (Figure1A), at the confluence of the Greater Xing'an Range and Lesser Xing'an Range. NE China recorded multiphase magmatism during the development of the Paleo-Asian Ocean, Mongol-Okhotsk Ocean, and Paleo-Pacific Ocean [5,12,22,27–30].

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Unveil the Redox Evolution of Ore‐forming Fluids Using Sulfur …

A compilation of δ 34 S values of sulfides from two subtypes of IS deposits (Au-rich and Ag-rich) from NE China shows that the δ 34 S values of sulfides from Au-rich IS deposits are systematically lighter than those of Ag-rich IS Ag-Pb-Zn deposit, indicating the ore-forming fluids of the former is generally more oxidized than the latter. We ...

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A systematic review of sustainable gold extraction from raw ores …

Introduction. Gold is the most important precious metal in the world, ... Arsenical gold ores: ... 2008; Li et al., 2013; Ogata and Nakano, 2005). 5.4. Solvent extraction. Solvent extraction is another alternative technique to extract gold from leachate.

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Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin

The Toudaochuan gold deposit is a recently discovered lode gold deposit in Central Jilin Province. Gold ore bodies are dominantly controlled by NE-trending fault. The major hydrothermal period can be further divided into the quartz–pyrite stage (stage I), quartz–gold–polymetallic sulfides stage (stage II, major gold mineralization stage), and …

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Genesis of the Jinying gold deposit, southern Jilin Province, NE …

1. Introduction. Southern Jilin Province, located in the northeastern margin of the North China Craton (NCC, Fig. 1a), is an important polymetallic metallogenic district that hosts numerous Ni, Fe, Cu and Au deposits (Fig. 1b), and over 20 large-, medium- and small-scale Au deposits have been found in this area. For example, the world-famous Jiapigou gold district …

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Deciphering ore-forming fluid evolution processes of the Yuerya gold

Sulfides are ubiquitous in various metal deposits and are usually important carriers of useful metal elements (Jean and Michael, 1985, Hyland and Bancroft, 1989, Maddox et al., 1998, Abraitis et al., 2004, Deditius et al., 2008, Prol-Ledesma et al., 2010).Pyrite, the primary sulfide mineral in gold deposits, also serves as the principal carrier of gold, with approximately …

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