New insights on the Escoural Orogenic gold district (Ossa-Morena Zone, SW Iberia): Geochemistry, fluid inclusions and stable isotope constraints from the Monfurado gold prospect

Miguel Maia,José Roseiro,Pedro Nogueira,Fernando Noronha,Mercedes Fuertes-Fuente,Antonia Cepedal,José Mirão

Ore Geology Reviews（2022）

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摘要

•Characterization of a complex orogenic gold mineralization in SW Iberia.•Gold-bearing polymetallic sulfide beddings are ubiquitous in the deposit.•CH4-fluids suggest a reduced environment associated with gold transport.•Sulfidation reactions are identified as a major control for gold deposition.•Sulfides from the ore assemblage display similar δ34SCDT signatures.

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关键词

Orogenic gold,Vectoring gold exploration,Sulfide geochemistry,Fluid-rock interactions,SW Iberian Massif

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