Iron-oxide alteration associated with the carbonate-hosted Tynagh and Crinkill base-metal deposits, Ireland; evidence for the involvement of dissolved atmospheric oxygen

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Authors:Cruise, Mark D.; Boyce, Adrian J.; Fallick, Anthony E.
Author Affiliations:Primary:
Trinity College, Department of Geology, Dublin, Ireland
Other:
University of Kingston, United Kingdom
Virginia Polytechnic Institute, United States
British Geological Survey, United Kingdom
University of Leeds, United Kingdom
University of Missouri, United States
University of Manchester, United Kingdom
Czech Geological Survey, Czech Republic
Imperial College, United Kingdom
Charles University, Czech Republic
Bristol University, United Kingdom
Commonwealth Scientific and Industrial Research Organisation, Australia
University of Cardiff, United Kingdom
University of Greenwich, United Kingdom
University of Tasmania, Australia
Geological Survey of Norway, Norway
University of Technology, Australia
Iowa State University, United States
Washington State University, United States
Camborne School of Mines, United Kingdom
U. S. Geological Survey, United States
Rand Afrikaans University, South Africa
Colorado State University, United States
University of Salzburg, Austria
Royal Holloway and Bedford New College, United Kingdom
University of Birmingham, United Kingdom
Scottish Universities Research and Reactor Centre, United Kingdom
Volume Title:Proceedings of the Fifth biennial SGA meeting and the Tenth quadrennial IAGOD symposium; Mineral deposits; processes to processing
Volume Authors:Stanley, C. J., editor; Rankin, A. H.; Bodnar, R. J.; Naden, J.; Yardley, Bruce W. D.; Criddle, A. J.; Hagni, R. D.; Gize, A. P.; Pasava, J.; Fleet, A. J.; Seltmann, R.; Halls, C.; Stemprok, M.; Williamson, B.; Herrington, R. J.; Hill, R. E. T.; Prichard, H. M.; Wall, F.; Williams, C. T.; McDonald, I.; Wilkinson, Jamie J.; Cooke, D.; Cook, Nigel J.; Marshall, Brian J.; Spry, Paul G.; Zaw, Khin; Meinert, L. D.; Sundblad, K.; Scott, P. W.; Clark, S. H. B.; Valsami-Jones, E.; Beukes, Nicolas J.; Stein, Holly J.; Hannah, J. L.; Neubauer, F.; Blundell, D. J.; Alderton, D. H. M.; Smith, M. P.; Mulshaw, S.; Ixer, R. A.
Source:Proceedings of the ... Biennial SGA Meeting, Vol.5, p.833-836; Fifth biennial SGA meeting and the Tenth quadrennial IAGOD symposium, London, United Kingdom, Aug. 22-25, 1999, edited by C. J. Stanley, A. H. Rankin, R. J. Bodnar, J. Naden, Bruce W. D. Yardley, A. J. Criddle, R. D. Hagni, A. P. Gize, J. Pasava, A. J. Fleet, R. Seltmann, C. Halls, M. Stemprok, B. Williamson, R. J. Herrington, R. E. T. Hill, H. M. Prichard, F. Wall, C. T. Williams, I. McDonald, Jamie J. Wilkinson, D. Cooke, Nigel J. Cook, Brian J. Marshall, Paul G. Spry, Khin Zaw, L. D. Meinert, K. Sundblad, P. W. Scott, S. H. B. Clark, E. Valsami-Jones, Nicolas J. Beukes, Holly J. Stein, J. L. Hannah, F. Neubauer, D. J. Blundell, D. H. M. Alderton, M. P. Smith, S. Mulshaw and R. A. Ixer. Publisher: Society for Geology Applied to Mineral Deposits (SGA), International. ISBN: 90-5809-121-X
Publication Date:1999
Note:In English. 11 refs.; illus., incl. 1 table
Summary:Oxygen isotope analysis of iron oxide alteration materials (hematite, silica + magnetite) from these two Irish base metal deposits indicates that, while the silica and magnetite largely precipitated in equilibrium waters at 66-147°C, hematite must have precipitated from a source containing oxygen with a much higher δ 18O component. The only realistic source for this is considered to be dissolved atmospheric oxygen, implying a near-surface genesis. [R.A.H.]
Sections:Economic minerals and ore deposits
Subsections:General
Subjects:Base metals; Carboniferous; Chemical composition; Dinantian; Dissolved oxygen; Metal ores; Mineralization; Mississippian; Oxygen; Paleozoic; Paragenesis; Solutes; Europe; Galway Ireland; Ireland; Tynagh Ireland; Western Europe; Crinkill Ireland
Coordinates:N530900 N530900 E0082200 E0082200
Abstract Numbers:00M/2490
Record ID:2003011713
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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