Metals and fluids source caracterization for a giant Neoproterozoic epithermal silver deposit : Imiter (Morocco) - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2007

Metals and fluids source caracterization for a giant Neoproterozoic epithermal silver deposit : Imiter (Morocco)

Résumé

The giant epithermal Ag-Hg deposit of Imiter (Morocco) is investigated to test a possible transfer of chalcophile elements from the mantle to superficial crustal levels during Pan African times. The accretion of the Anti-Atlas belt at the West African continent is characterized by a four stage succession of events, that is, extension, subduction, moderate collision and extension. The strongest metallogenic activity which is dominated by base- and precious metal deposit formation, occurs during the late extensional stage at the Precambrian-Cambrian transition. In the Imiter Ag-Hg deposit, the origin of metals and ligands, deduced from S, fluid inclusions, He, and Re/Os data obtained on sulphide phases and gangue minerals, had a dominantly mantle source.
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Dates et versions

halsde-00199943 , version 1 (20-12-2007)

Identifiants

  • HAL Id : halsde-00199943 , version 1

Citer

Gilles Levresse, Jordi Tritlla, Alain Cheilletz, Dominique Gasquet, David Banks. Metals and fluids source caracterization for a giant Neoproterozoic epithermal silver deposit : Imiter (Morocco). Proceedings of the Ninth Biennial SGA Meeting, 2007, Dublin, Ireland. pp.1243-1246. ⟨halsde-00199943⟩
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