Abstract
In the small Ikka Fjord in southwestern Greenland, we have studied remarkable submarine tufa columns forming over alkaline springs by abiotic precipitationof the metastable, cold-water mineral ikaite (CaCO3.6H2O)1,3. The columns, which support a rich marine life, are up to 20 m high, with annual growth of more than 50 cm. We wish to nominate the locality, which seems to be unique, for classification as a geological World Heritage Site.
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Buchardt, B., Seaman, P., Stockmann, G. et al. Submarine columns of ikaite tufa. Nature 390, 129–130 (1997). https://doi.org/10.1038/36474
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DOI: https://doi.org/10.1038/36474
