Doctoral thesis
English

Magmatic-Hydrothermal Evolution and Geological Framework of the Kirazlı Epithermal Au and Porphyry Cu deposits, Biga Peninsula, Turkey

ContributorsAluc, Aliorcid
Number of pages125
Imprimatur date2023
Defense date2023
Abstract

The Biga Peninsula, located in northwestern Turkey, is a sector of the Tethyan Metallogenic Belt (TMB), which stretch out from Europe to Iran. The peninsula hosts numerous epithermal Au–Ag deposits including high-(HS), low-(LS), and intermediate-sulfidation (IS) styles, porphyry Au–Cu–Mo, and base-metal skarn systems. Cenozoic calc-alkaline magmatism, spanning 52 to 18 Ma, shaped the deposits, which are associated with collisional and post-collisional tectonic regimes. Our knowledge about the magmatic-hydrothermal history and ore formation of this region is still fragmentary, particularly district-scale characteristics. Although recent scientific studies and exploration activities of the mineral industry have revealed the ore-forming potential of the region on a large scale, not much detailed data are available on a district scale for a better understanding of the magmatic-hydrothermal evolution of the area. Moreover, these deposits cluster in a narrow area and show a spatial-temporal relationship.

This thesis focuses on the Kirazlı district, which exhibits, in many ways, the common spatial-temporal relationship and overprinting features of mineral deposits found throughout the peninsula. The Kirazlı district is located at the center of the Biga Peninsula and hosts HS epithermal Au-Ag deposit and porphyry Cu mineralization with unclear temporal relationships. The purpose of this thesis is to reconstruct the magmatic-hydrothermal evolution of the Kirazlı district on the basis of field studies and micro-/macro scale observations combined with new analytical data acquired during this study.

Keywords
  • High sulfidation epithermal
  • Porphyry Cu
  • U-Pb – 40Ar/39Ar – Re-Os Geochronology
  • Alteration
  • SWIR
  • Fluid inclusions
  • S-O-H isotopes
  • K-Ar dating
  • QEMSCAN
  • Sr-Nd isotopes
  • Kirazlı
  • Biga Peninsula
  • Turkey
NoteThis is a joint Ph.D. thesis (cotutelle) between the University of Geneva (Switzerland) and Mugla Sıtkı Koçman University (Turkey)
Citation (ISO format)
ALUC, Ali. Magmatic-Hydrothermal Evolution and Geological Framework of the Kirazlı Epithermal Au and Porphyry Cu deposits, Biga Peninsula, Turkey. Doctoral Thesis, 2023. doi: 10.13097/archive-ouverte/unige:169701
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Creation22/06/2023 09:45:04
First validation26/06/2023 05:42:46
Update03/04/2025 16:18:09
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