Earth System Science Data (Feb 2021)

Database of global glendonite and ikaite records throughout the Phanerozoic

  • M. Rogov,
  • V. Ershova,
  • V. Ershova,
  • O. Vereshchagin,
  • K. Vasileva,
  • K. Mikhailova,
  • A. Krylov,
  • A. Krylov

DOI
https://doi.org/10.5194/essd-13-343-2021
Journal volume & issue
Vol. 13
pp. 343 – 356

Abstract

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This database of Phanerozoic occurrences and isotopic characteristics of metastable cold-water calcium carbonate hexahydrate (ikaite; CaCO3⚫6H2O) and their associated carbonate pseudomorphs (glendonites) has been compiled from academic publications, explanatory notes, and reports. Our database including more than 700 occurrences reveals that glendonites characterize cold-water environments, although their distribution is highly irregular in space and time. A significant body of evidence suggests that glendonite occurrences are restricted mainly to cold-water settings; however they do not occur during every glaciation or cooling event of the Phanerozoic. While Quaternary glendonites and ikaites have been described from all major ocean basins, older occurrences have a patchy distribution, which may suggest poor preservation potential of both carbonate concretions and older sediments. The data file described in this paper is available on Zenodo at https://doi.org/10.5281/zenodo.4386335 (Rogov et al., 2020).