Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey

Nilay Gulyuz, (Van Yüzüncü Yıl Üniversitesi, Jeoloji Mühendisliği Bölümü, Van, Türkiye)
Zoe Shipton, (Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, UK)
Ilkay Kuscu (Ortaköy Mah. Diğer Sok. No:349/7, Muğla, Türkiye)
Turkish Journal of Earth Sciences
4 0
Yıl: 2023 Cilt: 32 Sayı: 1 Sayfa Aralığı: 75 - 95 Metin Dili: İngilizce DOI: 10.55730/1300-0985.1828 İndeks Tarihi: 23-03-2023

Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey

Öz:
We investigate the multiphase deformation, fluid flow, and mineralization processes in epithermal systems by presenting a detailed study of vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. The mineralization in the deposit is associated with several quartz veins. Fault-hosted veins and mode I veins share many textural and breccia characteristics owing to (i) overprinting of tectonic breccias formed during coseismic rupturing by subsequent coseismic hydrothermal brecciation and (ii) reworking of earlier vein breccia phases by repeated rupturing and hydraulic fracturing events. The spatial distribution of breccias at fault-hosted veins proposes that power of coseismic hydrothermal brecciation is controlled by the distance to the level of boiling within a vein. The brecciation affects the entire vein proximal to the level of boiling; however, it is limited to the footwall contact of the vein more distally at the upper levels of a vein. Varying number of mineralization events for the veins suggests that any individual earthquake event reopened only one or more sealed vein, but not all at once. Fewer mineralization events in fault-hosted veins compared to the mode I veins is either linked to (i) focusing of high fluid flux into the conduits of mode I veins that accommodate more dilation or (ii) reopening of mode I veins owing to the driven of extensional failure under low differential stress. Although fault-hosted veins record fewer mineralization events, they have higher average Au grade (4.106 g/t) compared to that of mode I veins (2.736 g/t). On the other hand, fewer mineralization events in wall rock structures compared to the adjacent faults is attributed to (i) absence or poor development of the damage zone structures in earlier seismic events or (ii) deactivation of them after clogging due to the rotation of the optimum stress field or (iii) their formation as hydraulic extension fractures. This study emphasizes the importance of detailed studies of vein infill for understanding the internal structural evolution of the veins in epithermal deposits that is interest to the geologists within both industry and academic fields.
Anahtar Kelime: Biga Peninsula earthquake rupturing hydrothermal quartz texture Tethyan metallogenic belt

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APA Gulyuz N, Shipton Z, Kuscu I (2023). Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. , 75 - 95. 10.55730/1300-0985.1828
Chicago Gulyuz Nilay,Shipton Zoe,Kuscu Ilkay Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. (2023): 75 - 95. 10.55730/1300-0985.1828
MLA Gulyuz Nilay,Shipton Zoe,Kuscu Ilkay Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. , 2023, ss.75 - 95. 10.55730/1300-0985.1828
AMA Gulyuz N,Shipton Z,Kuscu I Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. . 2023; 75 - 95. 10.55730/1300-0985.1828
Vancouver Gulyuz N,Shipton Z,Kuscu I Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. . 2023; 75 - 95. 10.55730/1300-0985.1828
IEEE Gulyuz N,Shipton Z,Kuscu I "Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey." , ss.75 - 95, 2023. 10.55730/1300-0985.1828
ISNAD Gulyuz, Nilay vd. "Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey". (2023), 75-95. https://doi.org/10.55730/1300-0985.1828
APA Gulyuz N, Shipton Z, Kuscu I (2023). Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. Turkish Journal of Earth Sciences, 32(1), 75 - 95. 10.55730/1300-0985.1828
Chicago Gulyuz Nilay,Shipton Zoe,Kuscu Ilkay Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. Turkish Journal of Earth Sciences 32, no.1 (2023): 75 - 95. 10.55730/1300-0985.1828
MLA Gulyuz Nilay,Shipton Zoe,Kuscu Ilkay Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. Turkish Journal of Earth Sciences, vol.32, no.1, 2023, ss.75 - 95. 10.55730/1300-0985.1828
AMA Gulyuz N,Shipton Z,Kuscu I Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. Turkish Journal of Earth Sciences. 2023; 32(1): 75 - 95. 10.55730/1300-0985.1828
Vancouver Gulyuz N,Shipton Z,Kuscu I Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey. Turkish Journal of Earth Sciences. 2023; 32(1): 75 - 95. 10.55730/1300-0985.1828
IEEE Gulyuz N,Shipton Z,Kuscu I "Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey." Turkish Journal of Earth Sciences, 32, ss.75 - 95, 2023. 10.55730/1300-0985.1828
ISNAD Gulyuz, Nilay vd. "Multiphase deformation, fluid flow and mineralization in epithermal systems: Inferences from structures, vein textures and breccias of the Kestanelik epithermal Au-Ag deposit, NW Turkey". Turkish Journal of Earth Sciences 32/1 (2023), 75-95. https://doi.org/10.55730/1300-0985.1828
Sayfa Oluşturulma Tarihi
24-04-2024 6:10

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