New Insight on the Magmatic and Tectono-Metamorphic Evolution of the Paleoproterozoic Gold-Bearing Toulepleu-Ity district (SW Ivory Coast)
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| Titre | New Insight on the Magmatic and Tectono-Metamorphic Evolution of the Paleoproterozoic Gold-Bearing Toulepleu-Ity district (SW Ivory Coast) |
| Type de publication | Conference Paper |
| Year of Publication | 2015 |
| Auteurs | Tabaud A-S, Trap P, Marquer D, Durand C, Lescuyer J-L, Furic R |
| Editor | Andre-Mayer AS, Cathelineau M, Muchez P, Pirard E, Sindern S |
| Conference Name | MINERAL RESOURCES IN A SUSTAINABLE WORLD, VOLS 1-5 |
| Publisher | CNRS; Univ Lorraine Nancy; Katholieke Universiteit Leuven; Univ Liege; RWTH Aachen Univ |
| Conference Location | 2 RUE DU DOYEN MARCEL ROUBAULT, TSA 70605, VANDOEUVRE-LES-NANCY, F-54518, FRANCE |
| ISBN Number | 978-2-85555-066-4 |
| Mots-clés | Gold mineralization, Paleoproterozoic, Skarn, West African craton |
| Résumé | Within the Kenema-Man Archean craton, the Toulepleu-Ity district of SW Ivory Coast is characterized by Paleoproteroic calc-alkaline granitoids intruding Birimian volcanosedimentary rocks and marble that underwent metamorphism under greenschist facies PT conditions. Primary gold mineralization at the Ity mine is mainly located within skarns generated at the contact between granodiorite and marble. Integration of regional geophysical and drilling datasets, and new structural analyses in the opencast mine suggest that the granodioritic intrusion was emplaced in a transtensional regime during the last stages of the Eburnean orogeny. Petrological investigations, thermodynamic modelling, mass transfer studies and fluid inclusions analyses are underway to decipher the complex magmatic and tectono-metamorphic evolution that led to skarn-hosted gold mineralization. |