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Communication Dans Un Congrès Année : 2015

The Late-Archean Magmatic Gold Event: Toward a Non-Uniformitarian Approach.

Résumé

Gold is exceptionally abundant at the end of Archean. Three main steps are recognized: (1) a late TTG event at the core of calderas, producing small porphyries and gold-rich VMS deposits; (2) a sanukitoïd event, producing alkaline and felsic subvolcanic plutons with large gold hydrothermal systems, and (3) a hydrothermal/structural event. A large part of the gold mineralization may be directly related to the unique geodynamic situation, including the first subduction with two generations of gold-enriched intrusions.
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Dates et versions

hal-02333152 , version 1 (25-10-2019)

Identifiants

  • HAL Id : hal-02333152 , version 1

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Michel Jébrak, Noémie Fayol. The Late-Archean Magmatic Gold Event: Toward a Non-Uniformitarian Approach.. 13th Biennial SGA Meeting, Aug 2015, Nancy, France. pp.125-128. ⟨hal-02333152⟩
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