Bozkaya, G and Banks, DA (2016) Sulfur isotope geochemistry and mineralogy of Balcilar vein type barite-sulphide mineralization, Biga peninsula, NW Turkey. Pamukkale University Journal of Engineering Sciences, 22 (3). pp. 200-205. ISSN 1300-7009
Abstract
The Balcılar (Çanakkale) barite-galena mineralization is a typical example of the vein type barite-lead-zinc deposits in the Biga Peninsula. The lithologic units in the study area are Akçaalan andesite, Eocene, Adadağı pyroclastics, Oligocene, Dededağ dacite, Miocene, Karaömerler basalt, Plio-Quaternary and alluvium Quaternary. Barite-galena veins occurred along the faults developed within the andesites. Barite, quartz and galena are main minerals and are accompanied by minor amounts of sphalerite, pyrite, chalcopyrite, covellite and marcasite. The earliest barite (barite I) occurs as coarse-grained subhedral-euhedral crystals and the later (barite II) as small tabular crystals in between the earlier coarse crystals. Quartz occurs as fine-grained crystals with the later small barite crystals. Galena, sphalerite, chalcopyrite, pyrite, marcasite and covellite occur open spaces within the earlier barite (barite I) crystals. Sulfur isotopes indicate that in galena the reduced sulfur from bacterially or inorganically reduced sulphate, or from an isotopically light reduced S-source. The δ34SH2S values calculated from the barite-H2S and galena-H2S fractionation factors, in the same samples, indicate a temperature of between 200 and 300 °C. Relatively lower δ34S values of barites than dissolved sulphate in modern oceans or Eocene sea waters have been evaluated as the ore forming hydrothermal fluids were derived from interacting throughout the magmatic host-rocks.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Pamukkale University Journal of Engineering Sciences. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY). |
Keywords: | Barite-galena, Ore geology, Sulfur isotope, Çanakkale, Turkey |
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: | 14 Jul 2016 11:24 |
Last Modified: | 14 Jul 2016 11:24 |
Published Version: | http://dx.doi.org/10.5505/pajes.2014.87699 |
Status: | Published |
Publisher: | Pamukkale University, Faculty of Engineering |
Identification Number: | 10.5505/pajes.2014.87699 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102423 |