Bozkaya, G, Bozkaya, O, Banks, DA orcid.org/0000-0001-9118-5298 et al. (1 more author) (2017) Fluid evolution of mixed base-metal gold mineralization in the Tethys belt: Koru deposit, Turkey. In: Proceedings of the 14th Biennial SGA Meeting, vol 1. 14th Biennial SGA Meeting: Mineral Resources to Discover, 20-23 Aug 2017, Québec City, Canada. Society for Geology Applied to Mineral Deposits , pp. 283-286. ISBN 978-2-9816898-0-1
Abstract
Koru is one of a number of base-metal gold deposits hosted by Oligo-Miocene volcano-sedimentary rocks of deposits in the Biga peninsula. Barite, quartz and galena are main minerals and are accompanied by minor amounts of sphalerite, pyrite, chalcopyrite, covellite and marcasite. Th of fluid inclusions indicates two distinct fluid pulses, one at high temperature (340ºC) commensurate with epithermal mineralization and boiling/near boiling conditions and the second approximately 150ºC lower. Salinity in both instances was from 11–0.2 wt. % NaCl. The range of temperatures within individual samples is consistent with variations from near lithostatic to hydrostatic pressure during vein and fracture opening. There are two different ranges of δ 34S values of H2S in equilibrium with barite (+5.5 to +7.9 ‰) and sulfide minerals (-2.1 to -0.5‰), indicating that the sulfur in sulfide minerals and barite derived from different sources; magmatic and seawater respectively.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Oct 2018 08:59 |
Last Modified: | 26 Oct 2018 10:08 |
Published Version: | https://e-sga.org/shop/product-details/?categories... |
Status: | Published |
Publisher: | Society for Geology Applied to Mineral Deposits |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137623 |