¹A. A. Garde, ²Martin B. Klausen
Journal of the Geological Society 173, 954-965 Link to Article [doi: 10.1144/jgs2015-147]
¹Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen K, Denmark
²Department of Earth Sciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa

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