185 by Björn Sundquist1, Ilmari Haapala2, Jens Morten Hansen3, Geir Hestmark4, and

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• Geology
• Geologist
• Geological Survey of Denmark and Greenland
• Gerard De Geer
• Nordic countries
• Otto Martin Torell
• Charles Lyell
• Iceland
• Earth science
• Science
• Royal Society
• Europe