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Open AccessArticle

Oxygen Fugacity and Volatile Content of Syntectonic Magmatism in the Neoarchean Abitibi Greenstone Belt, Superior Province, Canada

1
Département des Sciences Appliquées (DSA), Centre d’Étude sur les Ressources Minérales (CERM), Université du Québec à Chicoutimi (UQAC), Chicoutimi, QC G7H 2B1, Canada
2
Chaire institutionnelle UQAC sur les Processus Métallogéniques Archéens, Université du Québec à Chicoutimi (UQAC), Chicoutimi, QC G7H 2B1, Canada
3
Mineral Exploration Research Centre, Harquail School of Earth Sciences, Laurentian University Sudbury, Sudbury, ON P3E 2C6, Canada
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(11), 966; https://doi.org/10.3390/min10110966
Received: 27 September 2020 / Revised: 25 October 2020 / Accepted: 26 October 2020 / Published: 28 October 2020
(This article belongs to the Special Issue Distribution of Major- and Trace-Elements in Igneous Minerals)
Neoarchean syntectonic intrusions from the Chibougamau area, northeastern Abitibi Subprovince (greenstone belt), may be genetically related to intrusion related gold mineralization. These magmatic-hydrothermal systems share common features with orogenic gold deposits, such as spatial and temporal association with syntectonic magmatism. Genetic association with magmatism, however, remains controversial for many greenstone belt hosted Au deposits. To precisely identify the link between syntectonic magmas and gold mineralization in the Abitibi Subprovince, major and trace-element compositions of whole rock, zircon, apatite, and amphibole grains were measured for five intrusions in the Chibougamau area; the Anville, Saussure, Chevrillon, Opémisca, and Lac Line Plutons. The selected intrusions are representative of the chemical diversity of synvolcanic (TTG suite) and syntectonic (e.g., sanukitoid, alkaline intrusion) magmatism. Chemical data enable calculation of oxygen fugacity and volatile content, and these parameters were interpreted using data collected by electron microprobe and laser ablation-inductively coupled plasma-mass spectrometry. The zircon and apatite data and associated oxygen fugacity values in magma indicate that the youngest magmas are the most oxidized. Moreover, similar oxygen fugacity and high volatile content for both the Saussure Pluton and the mineralized Lac Line intrusion may indicate a possible prospective mineralized system associated with the syntectonic Saussure intrusion. View Full-Text
Keywords: oxygen fugacity; volatile content; syntectonic intrusions; Abitibi greenstone belt oxygen fugacity; volatile content; syntectonic intrusions; Abitibi greenstone belt
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MDPI and ACS Style

Madon, B.; Mathieu, L.; Marsh, J.H. Oxygen Fugacity and Volatile Content of Syntectonic Magmatism in the Neoarchean Abitibi Greenstone Belt, Superior Province, Canada. Minerals 2020, 10, 966. https://doi.org/10.3390/min10110966

AMA Style

Madon B, Mathieu L, Marsh JH. Oxygen Fugacity and Volatile Content of Syntectonic Magmatism in the Neoarchean Abitibi Greenstone Belt, Superior Province, Canada. Minerals. 2020; 10(11):966. https://doi.org/10.3390/min10110966

Chicago/Turabian Style

Madon, Baptiste; Mathieu, Lucie; Marsh, Jeffrey H. 2020. "Oxygen Fugacity and Volatile Content of Syntectonic Magmatism in the Neoarchean Abitibi Greenstone Belt, Superior Province, Canada" Minerals 10, no. 11: 966. https://doi.org/10.3390/min10110966

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