Comparative anatomy of volcanic-hosted epithermal deposits; acid-sulfate and adularia-sericite types

Heald, Pamela; Foley, Nora K.; Hayba, Daniel O.

doi:10.2113/gsecongeo.82.1.1

Cited by 524 publications

(333 citation statements)

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“…Cette classification utilise comme critère de différenciation la composition de la roche-hôte de la minéralisation. Les caractéristiques de chacun des types sont sensiblement les mêmes que pour la classification de Barrie et Hannington (1997 (Heald et al, 1987). La majorité des dépôts se localisent à une profondeur inférieure à 1,5 km (Heald et al, 1987) et présentent diverses morphologies telles : des veines massives, des essaims de veines, des stockwerk, des brèches hydrothermales ainsi que des minéralisations disséminées et de remplacement (Heald et al, 1987).…”

Section: Classification Des Gisements De Sulfures Massifs Volcanogènesunclassified

“…Les caractéristiques de chacun des types sont sensiblement les mêmes que pour la classification de Barrie et Hannington (1997 (Heald et al, 1987). La majorité des dépôts se localisent à une profondeur inférieure à 1,5 km (Heald et al, 1987) et présentent diverses morphologies telles : des veines massives, des essaims de veines, des stockwerk, des brèches hydrothermales ainsi que des minéralisations disséminées et de remplacement (Heald et al, 1987). Ces minéralisations sont caractérisées par des textures de remplissage, crustiformes, de rubanement colloforme, de crêtes-de-coq et de bréchification (Lingren, 1933 (Heald et al, 1987).…”

Section: Classification Des Gisements De Sulfures Massifs Volcanogènesunclassified

“…La majorité des dépôts se localisent à une profondeur inférieure à 1,5 km (Heald et al, 1987) et présentent diverses morphologies telles : des veines massives, des essaims de veines, des stockwerk, des brèches hydrothermales ainsi que des minéralisations disséminées et de remplacement (Heald et al, 1987). Ces minéralisations sont caractérisées par des textures de remplissage, crustiformes, de rubanement colloforme, de crêtes-de-coq et de bréchification (Lingren, 1933 (Heald et al, 1987). Ces gîtes se localisent principalement dans des environnements hydrothermaux peu profonds généralement au sein d'un dôme volcanique (Heald et al, 1987).…”

Section: Classification Des Gisements De Sulfures Massifs Volcanogènesunclassified

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minéralisations de zinc-cuivre du secteur Frotet-Troilus, Chibougamau, Québec /

Légaré¹

2002

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Section: Classification Des Gisements De Sulfures Massifs Volcanogènesunclassified

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minéralisations de zinc-cuivre du secteur Frotet-Troilus, Chibougamau, Québec /

Légaré¹

2002

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“…Examples of such gold deposits subset developed are, intrusion-related gold deposits [7], bulk mineable gold deposit [8], the epithermal gold deposits [9], or the epigenetic Archean gold deposits [10] [11] stated that a rational geological classification of the commonly recognized lode gold deposits is not feasible if it…”

Section: Introductionmentioning

confidence: 99%

Diversity of Gold Deposits, Geodynamics and Conditions of Formation: A Perspective View

Nguimatsia¹,

Bolarinwa²,

Yongue³

et al. 2017

OJG

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Gold occurs in a wide range of deposit types and settings. In the last decade, significant progress has been made in the definition, classification, characterization, thereby aiding understanding of the main gold deposit types. The present work aims to provide an update on the current state of knowledge on the different types of gold deposits models, geodynamics, their mode of formation and the condition suitable for their formation Several subsets of gold deposits are distinguished from one another on the bases of and their main geological models and their mode of formation described. Gold deposits of magmatic-hydrothermal origin are classified into Porphyry, Epithermal, Skarn, Iron Oxide-Copper-Gold and Intrusion related deposits; those of hydrothermal origin are Orogenic, Volcanogenic Massive Sulphide deposits, and Carlin-type; while those of Sedimentary Origin are placers. In terms of the major Period of gold deposit formation, the Mesoarchean was the largest gold period. Other gold peaks followed, particularly in the Neoarchean, Paleoproterozoic and Paleozoic while numerous and diverse gold deposit types were formed during the Cenozoic era.Wide varieties of geodynamic contexts in which each of the gold deposits are formed being explained while the conditions favourable for its formation are also being summarized. With the recent rise in the price of gold, mining companies and research centers continue to provide lighting of the key geology features of then ore-forming environments and the key geologic manifestations of the different deposit types.

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“…In addition, the homogenization temperature and salinity ranges are characteristic of epithermal systems (Heald et al, 1987) and also open space filling is…”

Section: Discussionmentioning

confidence: 99%

Processos metalogenéticos em ambientes de arco magmático tipo andino, caso de estudo: mineralizações da região dos Andes Patagônicos setentrionais do Chile

Oyarzo¹,

Leeming²

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Comparative anatomy of volcanic-hosted epithermal deposits; acid-sulfate and adularia-sericite types

Cited by 524 publications

References 0 publications

minéralisations de zinc-cuivre du secteur Frotet-Troilus, Chibougamau, Québec /

minéralisations de zinc-cuivre du secteur Frotet-Troilus, Chibougamau, Québec /

Diversity of Gold Deposits, Geodynamics and Conditions of Formation: A Perspective View

Processos metalogenéticos em ambientes de arco magmático tipo andino, caso de estudo: mineralizações da região dos Andes Patagônicos setentrionais do Chile

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