The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?

The Gualcamayo Mining District (GMD), located in the eastern margin of the Argentini an Precordillera includes three Au deposits: Amelia-Ines, Magdalena, Quebrada del Diablo Main, and QDD Lower West. The district has reserves of 491,000 oz. and resources of 2.3 million oz of Au. The metallogenetic a...

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Autores principales: D'Annunzio, M.C., Rubinstein, N.
Formato: JOUR
Materias:
Character of the mineralizing fluids
Distal disseminated Au deposit
Host rocks
Magmatic origin
Precordillera
Structural control
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v92_n_p95_DAnnunzio
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_08959811_v92_n_p95_DAnnunzio
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spelling todo:paper_08959811_v92_n_p95_DAnnunzio2023-10-03T15:43:44Z The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization? D'Annunzio, M.C. Rubinstein, N. Character of the mineralizing fluids Distal disseminated Au deposit Host rocks Magmatic origin Precordillera Structural control The Gualcamayo Mining District (GMD), located in the eastern margin of the Argentini an Precordillera includes three Au deposits: Amelia-Ines, Magdalena, Quebrada del Diablo Main, and QDD Lower West. The district has reserves of 491,000 oz. and resources of 2.3 million oz of Au. The metallogenetic analysis of these Au deposits based on previous work and new micro-geochemistry (LA- ICP- MS), isotopic (C-O-S-Pb) and fluid inclusions studies revealed that they are genetically linked and share many characteristics with Carlin-type deposits, including the lithology of host rocks, structural control, geochemical signatures, ore paragenesis, and dissolution and decarbonization processes. However, they also display some noticeable differences. The sulfur isotopic composition supports a genetic link between these gold deposits and the precursor magmatism of the porphyry-type mineralization of the area. Besides, the fluids responsible for the Au mineralization proved to be neutral to slightly alkaline and Au-saturated. The link with the magmatism along with the character of the mineralizing fluids and the presence of significant base metal sulfides allowed classifying the GMD deposits as “distal disseminated gold deposits” that occur on the distal edges of magmatic-hydrothermal systems. © 2019 Elsevier Ltd JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08959811_v92_n_p95_DAnnunzio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Character of the mineralizing fluids
Distal disseminated Au deposit
Host rocks
Magmatic origin
Precordillera
Structural control
spellingShingle Character of the mineralizing fluids
Distal disseminated Au deposit
Host rocks
Magmatic origin
Precordillera
Structural control
D'Annunzio, M.C.
Rubinstein, N.
The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
topic_facet Character of the mineralizing fluids
Distal disseminated Au deposit
Host rocks
Magmatic origin
Precordillera
Structural control
description The Gualcamayo Mining District (GMD), located in the eastern margin of the Argentini an Precordillera includes three Au deposits: Amelia-Ines, Magdalena, Quebrada del Diablo Main, and QDD Lower West. The district has reserves of 491,000 oz. and resources of 2.3 million oz of Au. The metallogenetic analysis of these Au deposits based on previous work and new micro-geochemistry (LA- ICP- MS), isotopic (C-O-S-Pb) and fluid inclusions studies revealed that they are genetically linked and share many characteristics with Carlin-type deposits, including the lithology of host rocks, structural control, geochemical signatures, ore paragenesis, and dissolution and decarbonization processes. However, they also display some noticeable differences. The sulfur isotopic composition supports a genetic link between these gold deposits and the precursor magmatism of the porphyry-type mineralization of the area. Besides, the fluids responsible for the Au mineralization proved to be neutral to slightly alkaline and Au-saturated. The link with the magmatism along with the character of the mineralizing fluids and the presence of significant base metal sulfides allowed classifying the GMD deposits as “distal disseminated gold deposits” that occur on the distal edges of magmatic-hydrothermal systems. © 2019 Elsevier Ltd
format JOUR
author D'Annunzio, M.C.
Rubinstein, N.
author_facet D'Annunzio, M.C.
Rubinstein, N.
author_sort D'Annunzio, M.C.
title The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
title_short The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
title_full The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
title_fullStr The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
title_full_unstemmed The Quebrada del Diablo Lower West Au deposit (Gualcamayo mining district, Argentina): A Carlin-type mineralization?
title_sort quebrada del diablo lower west au deposit (gualcamayo mining district, argentina): a carlin-type mineralization?
url http://hdl.handle.net/20.500.12110/paper_08959811_v92_n_p95_DAnnunzio
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