Geological setting of the Wassa gold deposit, SW Ghana

Stéphane Perrouty; Mark W. Jessell; Yan Bourassa; John Miller; Daniel Apau; Luis A. Parra-Avila; Élodie Le Mignot; Germán Velásquez; Jérôme Ganne; Luc Siebenaller; Lenka Baratoux; Laurent Aillères; Anne Sylvie André-Mayer; Didier Béziat; Stefano Salvi

doi:10.1016/j.oregeorev.2015.09.024

Geological setting of the Wassa gold deposit, SW Ghana

Stéphane Perrouty, Mark W. Jessell, Yan Bourassa, John Miller, Daniel Apau, Luis A. Parra-Avila, Élodie Le Mignot, Germán Velásquez, Jérôme Ganne, Luc Siebenaller, Lenka Baratoux, Laurent Aillères, Anne Sylvie André-Mayer, Didier Béziat, Stefano Salvi

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Abstract

Including past production, current indicated and inferred resources, Wassa is a 5 Moz poly-deformed early-orogenic gold deposit located on the eastern flank of the Ashanti Belt, in southwest Ghana. It is hosted by metamorphosed volcanic, intrusive and sedimentary rocks of the Sefwi Group (ca. 2260–2160 Ma). Early mineralization has an Eoeburnean age (2164 ± 22 Ma, Re–Os on pyrite) and is characterized by quartz veins, by a carbonate alteration of the host rocks, and by deformed gold-bearing pyrite. Remobilization of this gold occurred during the late stages of the Eburnean Orogeny (~ 2.1 Ga) and is associated with quartz-carbonate veins with visible gold and euhedral pyrites.

Original language	English
Pages (from-to)	687-691
Number of pages	5
Journal	Ore Geology Reviews
Volume	78
DOIs	https://doi.org/10.1016/j.oregeorev.2015.09.024
Publication status	Published - 1 Oct 2016

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10.1016/j.oregeorev.2015.09.024

Perrouty et al 2016, Geological settings ofAccepted author manuscript, 1.63 MBLicence: CC BY-NC-ND

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title = "Geological setting of the Wassa gold deposit, SW Ghana",

abstract = "Including past production, current indicated and inferred resources, Wassa is a 5 Moz poly-deformed early-orogenic gold deposit located on the eastern flank of the Ashanti Belt, in southwest Ghana. It is hosted by metamorphosed volcanic, intrusive and sedimentary rocks of the Sefwi Group (ca. 2260–2160 Ma). Early mineralization has an Eoeburnean age (2164 ± 22 Ma, Re–Os on pyrite) and is characterized by quartz veins, by a carbonate alteration of the host rocks, and by deformed gold-bearing pyrite. Remobilization of this gold occurred during the late stages of the Eburnean Orogeny (~ 2.1 Ga) and is associated with quartz-carbonate veins with visible gold and euhedral pyrites.",

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doi = "10.1016/j.oregeorev.2015.09.024",

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AU - Perrouty, Stéphane

AU - Jessell, Mark W.

AU - Bourassa, Yan

AU - Miller, John

AU - Apau, Daniel

AU - Parra-Avila, Luis A.

AU - Le Mignot, Élodie

AU - Velásquez, Germán

AU - Ganne, Jérôme

AU - Siebenaller, Luc

AU - Baratoux, Lenka

AU - Aillères, Laurent

AU - André-Mayer, Anne Sylvie

AU - Béziat, Didier

AU - Salvi, Stefano

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N2 - Including past production, current indicated and inferred resources, Wassa is a 5 Moz poly-deformed early-orogenic gold deposit located on the eastern flank of the Ashanti Belt, in southwest Ghana. It is hosted by metamorphosed volcanic, intrusive and sedimentary rocks of the Sefwi Group (ca. 2260–2160 Ma). Early mineralization has an Eoeburnean age (2164 ± 22 Ma, Re–Os on pyrite) and is characterized by quartz veins, by a carbonate alteration of the host rocks, and by deformed gold-bearing pyrite. Remobilization of this gold occurred during the late stages of the Eburnean Orogeny (~ 2.1 Ga) and is associated with quartz-carbonate veins with visible gold and euhedral pyrites.

AB - Including past production, current indicated and inferred resources, Wassa is a 5 Moz poly-deformed early-orogenic gold deposit located on the eastern flank of the Ashanti Belt, in southwest Ghana. It is hosted by metamorphosed volcanic, intrusive and sedimentary rocks of the Sefwi Group (ca. 2260–2160 Ma). Early mineralization has an Eoeburnean age (2164 ± 22 Ma, Re–Os on pyrite) and is characterized by quartz veins, by a carbonate alteration of the host rocks, and by deformed gold-bearing pyrite. Remobilization of this gold occurred during the late stages of the Eburnean Orogeny (~ 2.1 Ga) and is associated with quartz-carbonate veins with visible gold and euhedral pyrites.

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VL - 78

SP - 687

EP - 691

JO - Ore Geology Reviews

JF - Ore Geology Reviews

ER -

Geological setting of the Wassa gold deposit, SW Ghana

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Four Dimensional Lithospheric Evolution & Controls on Mineral System Distribution in Neoarchean to Paleoproterozoic Terranes

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Geological setting of the Wassa gold deposit, SW Ghana

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Four Dimensional Lithospheric Evolution & Controls on Mineral System Distribution in Neoarchean to Paleoproterozoic Terranes

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