Snæfell zircon geochronology and geochemistry
Zircon-based U-Pb geochronology, trace element concentrations, and O and Hf isotope compositions for Snæfell, an off-rift volcano in eastern Iceland. U-Pb zircon ages range from 545±59 to 266±16 ka (2SE), zircon δ18O is restricted to ~3.5 to 4‰, and zircon εHf ranges ~+13 to ~+17. Ti concentrations in zircon <5 ppm suggest a cool, near-solidus, crystallization environment for the majority of the zircon’s pre-eruptive history, with elevated Ti in zircon surfaces suggesting a late thermal perturbation.
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DOI Creation Date:
Banik, T.J., Carley, T.L., Coble, M.A., Hanchar, J.H., Dodd, J.P., Casale, G.M., McGuire, S.P., (2021), "Magmatic processes at Snæfell volcano, Iceland, constrained by zircon ages, isotopes, and trace elements." Geochemistry, Geophysics, Geosystems, #(#): #-#.
Creative Commons Attribution-ShareAlike 4.0 International [CC BY-SA 4.0]
Illinois State University; Lafayette College
Coverage Scope: Other
Geographic Location: Iceland, Snæfell
User Contributed Keyword(s):
zircon, U-Pb geochronology, U-Th geochronology, Hf isotopes, O isotopes, trace elements, rhyolite petrogenesis
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