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 …

Geology of the Yindongpo gold deposit

Yindongpo is the largest known gold deposit in the North Qinling terrane (Zhang et al. 2013; Chao et al. 2023; Li et al. 2023a).It is hosted in felsic metavolcanic rocks with interbedded metasedimentary rocks (Zhang et al. 2013).Jiang et al. reported a sericite 40 Ar/ 39 Ar age of 374 ± 3 Ma, but subsequent sericite K–Ar and 40 Ar/ 39 Ar dating yielded much younger ages of …

Geology and ore-forming fluids of the Dayingezhuang gold …

Identifying the mechanism of gold deposition is important to reveal ore-forming processes and genesis. The giant Dayingezhuang gold deposit, with 283 tons of proven gold resources, is located in the northwestern of the Jiaodong gold province, China. Pyrite is the dominant sulfide minerals and visible gold dominates Au resources.

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 …

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 …

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 …

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 …

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 …

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.

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 …

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 ...

Mineralogical characteristics and recovery process optimization

Introduction. The substantial increase in gold production (4355.07 t in 2019) has consumed an outsized range of gold ore resources, and also the average grade of gold ore has declined. ... (Li et al., 2022; Seitkamal et al., 2020; Srichandan et al., 2020). Due to the complex composition and properties of refractory gold ore, it must be analyzed ...

MACH REACTOR

The MACH REACTOR™ finds popular application in gold leaching circuits for pre-oxidation and boosted leach of gold ore. Special applications may be found for semi-refractory to refractory …

The >7 Moz Côté Gold Project: from Discovery to …

The Côté Gold deposit is a world-class gold (± copper), low-grade (ca. 0.96 g/t Au) deposit in northern Ontario, Canada. The deposit formed at the same time as an associated intrusive body. Mineralization occurs as a …

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].

The Jiaodong-type gold deposits: Introduction | Request PDF

This is in contrast to the syn-metamorphic origin for orogenic gold deposits in Archean greenstone belts [3,[13][14][15]. For this reason, the term "Jiaodong-type orogenic deposit" has been ...

The role of an oxidized lithospheric mantle in gold …

The distribution of gold (Au) between the crust and mantle is uneven. Known Au resources are located within the continental crust (1–3).Most of this Au was stored in the crust of Archean cratons prior to 3.0 billion years …

Ore-forming fluid characteristics of Jiaodong-type gold deposits in …

The Early Cretaceous gold deposits in the North China Craton are known as Jiaodong-type gold deposits. Here, we summarize a quantity of reported (including this study) pyrite trace element, δ34S, and Pb isotope data from the Jiaodong, Xiaoqinling, and Central Taihangshan gold fields to comprehensively reveal the characteristics of the ore-forming fluids …

Gold Ore Dressing Production Line-Chunlei Mining Machinery

Gold Flotation Production Line Process Introduction Gold flotation production line is a production line used for gold ore dressing,... Add.: 6 Industrial Road, Mazhai Industrial Park, …

The 'Jiaodong type' gold deposits: Characteristics, origin and

The Jiaodong Peninsula in the eastern part of the North China Craton (NCC) constitutes China's richest gold province (Fig. 1), and one of the major gold fields in Asia (Goldfarb et al., 2014).The Early Cretaceous (ca. 125–120 Ma; Goldfarb and Santosh, 2013, Yang and Santosh, 2014) gold deposits in this region have been broadly classified into two types: (1) the …

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 …

8 Types of Gold Ore

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

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 contains proven …

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 ...

Gold CIP/CIL Process

The CIP/CIL beneficiation process uses activated carbon as a catalyst to convert the gold element in the gold ore into soluble gold ions. It has higher gold extraction efficiency and can extract more gold from low-grade gold ore, thus …

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.

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 …

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 ...

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 …

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 ...