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2020.1.1 Gold is either the only economically important metal or a major by-product in 11 well-characterized deposit types—paleoplacer, orogenic, porphyry, epithermal, Carlin, placer, reduced intrusion related, volcanogenic massive sulfide (VMS), skarn, carbonate
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2016.8.1 The gold deposits in the East Junggar arc are small and can be divided into orogenic, epithermal and gold-rich porphyry types. The orogenic gold deposits include
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2023.9.22 The Jiaodong gold deposits are different from orogenic and intrusion-related gold deposits in terms of the tectonic background, types of host rocks, and ore
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2015.3.1 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
Read More2023.9.15 They possess unique characteristics of mineralization, metallogenesis and tectonic setting, different from the known gold types in the world, and are called
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2020.1.1 Gold is either the only economically important metal or a major by-product in 11 well-characterized deposit types—paleoplacer, orogenic, porphyry, epithermal, Carlin,
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However, China is now recognized as possessing significant gold resources in a wide range of mineral deposit types. Present estimates of gold resources in China exceed 4,500 t,
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Neil Phillips. Addresses all gold deposits, not simply one type. Combines field and underground geology with relevant theory. Explains the necessary concepts to
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2015.9.14 Gold Deposit Classification: List of 10 Types of Gold Deposits. Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes, sills,
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2023.12.12 Diagnostic Fluid Inclusions of Different Types of Hydrothermal Gold Deposits. Acta Petrologica Sinica, 23: 2085–2108 (in Chinese with English Abstract) Google Scholar Deng, J., Wang, Q. F., 2016. Gold Mineralization in China: Metallogenic Provinces, Deposit Types and Tectonic Framework. Gondwana Research ...
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2016.11.20 Sixteen common types of bedrock gold deposits are distinguished from one another and their main geological attributes are summarized. Many of these deposit types represent different components of larger hydrothermal systems active at the same crustal levels and are genetically related. The geochemical parameters for most of
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2022.4.11 Carlin-type gold deposits contain “invisible” or microscopic particles of gold that are deposited within a mineral called pyrite in sedimentary rocks. Needless to say, these deposits are named after the
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2015.5.1 The orogenic type of gold deposit was established according to metallogenic mechanism providing genetic information, whereas the Carlin-type of gold deposit was established with no genetic significance but named after the place where the first deposit of this type was discovered (Chen, 2001, Ouyang et al., 2011). Therefore, as the two types
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2015.3.1 The sulfide quartz vein type gold deposits occur in the faults. The altered conglomerate type ones occur in the listric faults and fractures along the margin of the Jiaolai Basin. The basin–marginal fault-related breccia type gold deposits occur in basin–marginal faults between the Mesozoic basins and the Precambrian basement (Fig.
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2017.4.4 Closely watched projects outside the top 10 include Turquoise Hill’s Oyu Tolgoi open pit mine and underground expansion in Mongolia which ranks 11th with resources of 42.4moz, Newcrest and ...
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2022.4.18 The building blocks of Carlin-type gold deposits. Nevada’s CTGDs contain 255 million ounces of gold, representing one of only six gold belts of this size in the world. Furthermore, 84% or 214 ...
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2021.8.13 Lode gold deposits are among the most economically important types of gold deposits in the world. Globally, they formed mainly in three time intervals, 2.8 to 2.5 Ga, 2.1 to 1.8 Ga, and 700 Ma to the present. Sources of ore-forming fluids and other components are of critical importance in a better understanding of the genesis and the
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2022.10.17 The Garrcon gold deposit (20.6 million tonnes of ore containing 636,000 oz Au 31) is located in the Garrison camp near the provincial border between Ontario and Quebec within a transtensional ...
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2016.8.1 The genetic types of gold deposits mainly comprise the epithermal, porphyry and skarn, orogenic, and Jiaodong-type with subordinate placer-type, laterite-type, VMS and magmatic. The genetic types of the ore deposits are comprehensively constrained by the deposit geology, tectonic setting, ore fluid temperature and salinity, and multiple systems ...
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2013.6.25 The term epithermal was coined to describe a relatively shallow deposit. It comes from the Greek word “epi” meaning shallow, while “thermal” refers to the heated fluid necessary for the deposit’s formation.
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2024.1.27 of the gold deposits, and to guide gold exploration. Focusing on the classification of two potential sources of ore-forming fluids, laser ablation induc-tively coupled plasma mass spectrometry (LA–ICP– MS) geochemical data for pyrite samples from metamorphic–hydrothermal and magmatic–hy-drothermal gold deposits worldwide were
Read More2014.5.6 Sediment-hosted gold deposits are recognized in the Great Basin province of the western United States and in China along with a few recognized deposits in Indonesia, Iran, and Malaysia. Three new grade and tonnage models for sediment-hosted gold deposits are presented in this paper: (1) a general sediment-hosted gold type model, (2) a Carlin ...
Read More2020.1.1 Abstract. Gold is either the only economically important metal or a major by-product in 11 well-characterized deposit types—paleoplacer, orogenic, porphyry, epithermal, Carlin, placer, reduced ...
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The Largest Gold Deposits. Depending on the year or the source, different mines claim to have the most extensive gold deposits in the world. Muruntau, Uzbekistan. Muruntau is considered one of Earth's most extensive gold deposits. It has produced about 85 tonnes of gold since 1967. This pit is 1.8 miles (3.5 Km) wide and 2,000 feet (60 0m) deep.
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Abstract: Tongdao county is located in southwest of Xuefeng arc structure belt，there are some small and medium-sized gold deposit such as Jinkeng deposit，Huanggou deposit and Chaxi deposit.Few research have done in this area，in order to discuss the genesis of gold deposit，this paper focuses on the genetic mineralogy study about pyrites of
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There is a very strong structural control to Archaean lode gold deposits with most being related to regional fault systems. The gold mineralisation usually occurs at the contact between the veins and wallrocks. Most of the ore in these deposits is of the disseminated type with the gold mineralisation generally being invisible to the naked eye.
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2023.9.28 Water-rock interaction and fluid immiscibility, which occurred in and above the ductile-brittle transition zone to induce gold precipitation, formed the Jiaodong gold deposits. Given the unique geological features and genetic model of the Jiaodong gold deposits, they can be defined as “Jiaodong-type” gold deposits.
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Gold deposits of the meso-epithermal carbonate type were first proposed based on the study of the Baguamiao gold deposit. This new type of gold deposits has many unique characteristics as follows: (1) Obviously strata-bound. The gold deposits are hosted in Middle Devonian turbidite formations; (2) Structurally controlled. Structure is an important
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2023.4.23 Iron oxide-copper-gold (IOCG) deposits: These are formed by hydrothermal fluids and include deposits of iron, copper, and gold. Each type of mineral deposit has its own distinct characteristics, and the exploration and development of a particular deposit type require specialized techniques and knowledge. Primary mineralogy
Read More2010.12.29 Red clay type gold deposits, located in the south of China, are situated not only in orogenic belts, but also in inner cratons, where climate is tropical‐subtropical with clear arid and humid. The lateritic weathering crust often can be divided into five zones, including topsoil, siliceous duricrust zone, multi‐color zone (or red clay zone ...
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PDF On Oct 1, 2019, M.A. Mizernaya and others published The main geological-industrial types of gold deposits in East Kazakhstan Find, read and cite all the research you need on ResearchGate
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2023.8.26 Carlin-type deposits are typically mined using open-pit mining methods and complex extraction techniques, such as heap leaching and carbon-in-pulp (CIP) processing. Epithermal Deposits: Epithermal deposits are another type of gold occurrence that is typically found in volcanic regions. These deposits are formed when hot, mineral-rich
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2015.3.1 The Jiaodong type comprises a unique class of gold mineralisation which includes the Linglong type quartz-vein hosted and the Jiaojia type fracture-disseminated style deposits. Although the type area is in the Jiaodong Peninsula in NE China, where some of the world's richest gold reserves occur, we identify similar occurrences in other parts of ...
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DOI: 10.29202/nvngu/2019-5/2 Corpus ID: 210259441; The main geological-industrial types of gold deposits in East Kazakhstan @article{Mizernaya2019TheMG, title={The main geological-industrial types of gold deposits in East Kazakhstan}, author={Marina A. Mizernaya and A. P Miroshnikova and A. P. Pyatkova and A. T. Akilbaeva},
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The main types of gold deposits are then explained within the spectrum of viable genetic ideas, with informal names for these examples that include gold-only, gold-plus, Carlin, slate-belt, epithermal, porphyry, iron oxide copper gold, and Archean greenstone. Case histories are included inwhich the role of gold geology contributed directly to ...
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2015.7.11 The North China craton (NCC) hosts numerous gold deposits and is known as the most gold-productive region of China. The gold deposits were mostly formed within a few million years in the Early Cretaceous (130-120 Ma), coeval with widespread occurrences of bimodal magmatism, rift basins and metamorphic core complexes that marked the
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