STRUCTURAL FRAMEWORK OF THE TAVŞAN GOLD DEPOSIT

Date

2024-12-05

Author

Oğuz, Furkan

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The Tavşan Gold Deposit, situated along the boundary between the Tavşanlı and Afyon Zones in northwestern Anatolia, is hosted by diverse geological history involving ophiolitic complexes, accretionary wedges, and continental-margin sedimentary sequences. Detailed geological and structural mapping, combined with diamond drilling, petrographic and geochemical analyses, reflected light microscopy observations, cross-sections, kinematic signatures, stress analysis and 3D geological model, have identified multiple episodes of mineralization, each closely associated with and spatially confined to zones of deformation, primary and subsequent low-angle faults and later-stage strike-slip faults. Episodic reactivation of these faults, suggests a dynamic tectonic environment where compressional and extensional forces alternated, provided repeated conduits for hydrothermal fluids, which precipitated silica-rich, sulphide associated gold-bearing jasperoid bodies at key lithological contacts between carbonate and ophiolitic units with hydrothermal silicification and de-carbonatization. The study also reveals structural development of the study area including zones of cataclastic flow breccias, fault-related shearing and fractures that provided favourable pathways, as well as zones of mineralization and subsequent ore deposition. Spatial zoning in metallic associations and variations in ore-forming fluids suggest that presence of antimony mineralization and high arsenic geochemical anomalies further supports the nature of the deposit. The results contribute not only to the broader understanding of the tectonic evolution of the Tavşanlı Zone but also contributes valuable insights for future mining exploration strategies in similar structurally complex mineral deposit terranes. This work highlights the significance of episodic deformation in the formation of economically viable gold deposits.

Subject Keywords

Mineral deposit, structural geology, gold, Tavşanlı Zone, Western Anatolia, Maden yatakları, yapısal jeoloji, altın, Tavşanlı Zonu, Batı Anadolu

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https://hdl.handle.net/11511/113016

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Graduate School of Natural and Applied Sciences, Thesis