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creation of an epithermal gold deposit

creation of an epithermal gold deposit

Epithermal Gold Deposits : their characteristics modeling

2007-1-25  Ore deposits: Classification vs Modeling Each ore deposit is unique like a person’s finger print This uniqueness arises out of : ¾fundamental differences in processes and environments ¾local, site-specific geologic variations And produces an extremely large variation in characteristics ¾If we group the deposits according to their characteristics, we get a

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Exploration for Epithermal Gold Deposits Gold in 2000 ...

2000-1-1  Epithermal deposits are extremely variable in form, and much of this variability is caused by strong permeability differences in the near-surface environment, resulting from lithologic, structural, and hydrothermal controls. Low-sulfidation deposits typically vary from vein through stockwork to disseminated forms.

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Characteristics and Genesis of Epithermal Gold Deposits ...

2000-1-1  THIS Gold in 2000volume is organized around a classification of hypogene gold deposits that emphasizes their tectonic setting and relative time of formation compared to their host rocks and other gold deposit types (e.g., Sawkins, 1972, 1990; Groves et al., 1998; Kerrich et al., 2000).The temporal division of orogenic gold deposits into Archean, Proterozoic, and Phanerozoic follows closely the ...

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Epithermal Gold Deposits-Paf! I - USGS

2012-2-21  H2 Geology and Resources of Gold In the United States The Goldfield deposit is an epithermal bonanza of the enargite-gold or quartz-alunite type (Berger, 1986). Such deposits occur in calc-alkalic volcanic rocks, are associated with the effects of intense acid-sulfate hydro­ thermal alteration, and typically have significant byprod­

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Epithermal Gold Deposits Characteristics

2015-5-23  A fascinating group and characteristic of Epithermal gold deposits is that you can virtually see them forming today, simply by visiting hot springs. Like those with Yellowstone in Wyoming or Rotorua in New Zealand. This photo is Pamukkale, low sulfidation hot springs

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Epithermal Gold for Explorationists - Greg Corbett

2016-7-14  Low sulphidation epithermal gold deposits are derived from reduced, near neutral pH, dilute fluids developed by the entrainment of magmatic components within deep circulating groundwaters, and are characterised by sulphur species reduced to H2S (Corbett and Leach, 1998 and references therein).

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(PDF) Epithermal gold deposits: Styles, characteristics ...

Abstract. This is a 16-block poster on the styles of epithermal deposits, their characteristics, and exploration, based on our understanding in 1996 (i.e., now parts are out-of-date). It may still ...

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Epithermal Gold Deposits – BC Gold Adventures

A junior exploration company continued drilling the project and a gold rush ensued from 1979-1981. The Specogna gold deposit remains an un-mined deposit with over 3 million ounces of gold and is categorized as an Epithermal type gold deposit.

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Discovery and exploration of the Gosowong epithermal

1998-3-1  The Gosowong epithermal gold deposit, on the island of Halmahera in eastern Indonesia, is located in an area of primary tropical rain forest with no previous history of gold mining or record of gold mineralisation. The deposit occurs in a newly recognised mineral district which contains a number of epithermal vein systems and at least two ...

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Characteristics and genesis of epithermal gold deposits ...

The Tepic Property contains low sulphidation gold and silver epithermal deposits. The property is located approximately 27 km south-southeast of the city of Tepic in the Municipality of Xalisco ...

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EPITHERMAL GOLD DEPOSITS: STYLES,

Published in SEG Newsletter, 1995, No. 23, pp. 1, 9-13 EPITHERMAL GOLD DEPOSITS: STYLES, CHARACTERISTICS AND EXPLORATION Noel C. White1 and Jeffrey

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(PDF) Epithermal gold deposits Styles characteristics an ...

Published in SEG Newsletter, 1995, No. 23, pp. 1, 9-13 EPITHERMAL GOLD DEPOSITS: STYLES, CHARACTERISTICS AND EXPLORATION Noel C. White1 and Jeffrey W. Hedenquist 2 1 BHP Minerals International Exploration, 229 Shepherds Bush Road, London W6 7AN, U.K. 2 Mineral Resources Dept., Geological Survey of Japan, 1-1-3 Higashi, Tsukuba 305, Japan Epithermal ore deposits form at shallow

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Characteristics and genesis of epithermal gold deposits ...

DOI: 10.5382/rev.13.06 Corpus ID: 127642647. Characteristics and genesis of epithermal gold deposits @inproceedings{Cooke2000CharacteristicsAG, title={Characteristics and genesis of epithermal gold deposits}, author={D. Cooke and S. Simmons and S. Hagemann and P. E. Brown}, year={2000} }

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Geology of the Chatree Epithermal Gold Deposit, Thailand

The Chatree Gold Project represents a greenfields discovery of metallurgically clean shallow gold mineralisation in a logistically simple terrain. Total Measured, Indicated and Inferred Resources are currently 31 tonnes of gold and 160 tonnes of silver. Gold occurs in an adularia-sericite epithermal system within quartz-calcite-adularia veins, breccias and stockworks.

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Chapter 7 Exploration for Epithermal Gold Deposits

SEG Reviews Vol. 13, 2000, p. 245-277 Chapter 7 Exploration for Epithermal Gold Deposits JEFFREY W. HEDENQUIST^ 99 Fifth Avenue, Suite 420, Ottawa, Ontario K1S 5P5, Canada

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Gold Deposits and Their Geological Classification

2016-11-20  epithermal (Heald et al., 1987), intrusion-related (Sillitoe, 1991), bulk-mineable (Bonham, 1989) or epigenetic Archean (Gebre-Mariam et al., 1995). These have provided additional points of view and expanded the nomenclature surrounding the problem of gold deposit classification. Geological classification of lode gold deposits is further ...

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Prospectivity for epithermal gold–silver deposits in the ...

Prospectivity for low- and intermediate-sulfidation epithermal deposits was mapped successfully in most of the Deseado Massif, by using easily obtainable datasets, and applying the weights of evidence and the leave-one-out cross-validation methods, which allowed using all available deposits for training the model, as well as for validating it.

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The carbonate rock-hosted epithermal gold deposit of ...

2007-12-6  The disseminated gold deposit of Agdarreh (24.5 t at 3.7 g/t Au) is hosted in hydrothermally leached Miocene reefal limestone in the Takab geothermal field, which is part of the Cenozoic Urumieh–Dokhtar volcanic arc of NW Iran. Alteration and mineralisation are largely bedding controlled blanket-like and include: (1) pre-ore decalcification; (2) first-stage silicification associated with ...

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Structure of Epithermal - Greg Corbett

2016-7-14  Classification of Epithermal Deposits Epithermal Au-Ag deposits are classified (Corbett and Leach, 1998; Corbett, 2009 and references therein) as formed above the porphyry environment at crustal levels within about 1 km of the surface and subdivided on the basis of ore mineralogy, hydrothermal alteration and fluid flow paths (figure 1). Figure 1.

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rapid gold deposit - creation

2021-8-25  The Lihir gold deposit is located on an island to the north of Papua New Guinea (arrow inset) to the north of Australia. Photo: iStockphoto. The island of Lihir is only a few miles long but sits on one of the most massive gold deposits known, the Ladolam deposit. 1 This formed below-ground as magma (molten rock) heated mineral-rich water and ...

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Characteristics and Genesis of Epithermal Gold Deposits ...

2000-1-1  THIS Gold in 2000volume is organized around a classification of hypogene gold deposits that emphasizes their tectonic setting and relative time of formation compared to their host rocks and other gold deposit types (e.g., Sawkins, 1972, 1990; Groves et al., 1998; Kerrich et al., 2000).The temporal division of orogenic gold deposits into Archean, Proterozoic, and Phanerozoic follows closely the ...

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Epithermal Gold Deposits-Paf! I - USGS

2012-2-21  H2 Geology and Resources of Gold In the United States The Goldfield deposit is an epithermal bonanza of the enargite-gold or quartz-alunite type (Berger, 1986). Such deposits occur in calc-alkalic volcanic rocks, are associated with the effects of intense acid-sulfate hydro­ thermal alteration, and typically have significant byprod­

Get Price

Epithermal Gold Deposits : their characteristics modeling

2007-1-25  Ore deposits: Classification vs Modeling Each ore deposit is unique like a person’s finger print This uniqueness arises out of : ¾fundamental differences in processes and environments ¾local, site-specific geologic variations And produces an extremely large variation in characteristics ¾If we group the deposits according to their characteristics, we get a

Get Price

(PDF) Epithermal gold deposits. Styles, characteristics ...

Figure 10 (modified from Hedenquist, 1996) illustrates a conceptual model for low-temperature epithermal gold deposits that form on the fringe of these larger deposits, related to hydrothermal ...

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(PDF) Epithermal gold deposits Styles characteristics an ...

Published in SEG Newsletter, 1995, No. 23, pp. 1, 9-13 EPITHERMAL GOLD DEPOSITS: STYLES, CHARACTERISTICS AND EXPLORATION Noel C. White1 and Jeffrey W. Hedenquist 2 1 BHP Minerals International Exploration, 229 Shepherds Bush Road, London W6 7AN, U.K. 2 Mineral Resources Dept., Geological Survey of Japan, 1-1-3 Higashi, Tsukuba 305, Japan Epithermal ore deposits form at

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Low Sulphidation Epithermal Gold Deposits

2015-7-23  Low Sulphidation Epithermal Gold Deposits. Although they are a product of the same igneous system, low sulfidation epithermals gold deposits are very different from high sulfidation. In low sulfidation the main control for Gold deposition, is fluid

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Characteristics and genesis of epithermal gold deposits ...

DOI: 10.5382/rev.13.06 Corpus ID: 127642647. Characteristics and genesis of epithermal gold deposits @inproceedings{Cooke2000CharacteristicsAG, title={Characteristics and genesis of epithermal gold deposits}, author={D. Cooke and S. Simmons and S. Hagemann and P. E. Brown}, year={2000} }

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Ore Mineralogy and Formation Condition of Epithermal

2013-1-1  The southwestern Hokkaido mining district is well known for the occurrence of many epithermal ore deposits ofNeogene Tertiary period.The ore mineral assemblages in the epithermal gold-silver deposits from the southwestern Hokkaido such as Kobetsuzawa, Shin Otoyo, Suttsu, Chitose, Teine, Date, Koryu and Toya mines are examined.

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Structure of Epithermal - Greg Corbett

2016-7-14  Classification of Epithermal Deposits Epithermal Au-Ag deposits are classified (Corbett and Leach, 1998; Corbett, 2009 and references therein) as formed above the porphyry environment at crustal levels within about 1 km of the surface and subdivided on the basis of ore mineralogy, hydrothermal alteration and fluid flow paths (figure 1). Figure 1.

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The Age of the Kubaka Epithermal Gold-Silver Deposit ...

2020-3-16  AbstractNew data are obtained on the age of the epithermal gold-silver mineralization of the Kubaka deposit (Omolon Massif, Northeast Russia). Our geological observations in the open-pit mine of the Zokol zone of the deposit allow us to conclude that ...

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