Abstract
MR. J. J. SEDERHOLM, director of the Geological Survey of Finland, has issued in English his “Explanatory Notes to accompany a Geological Sketch-map of Fenno-Scandia” (Helsingfors: Frenckellska Tryckeri-aktiebolaget, 1908). The beautifully coloured map of Norway, Sweden, and Finland (Prof. W. Ramsay's “Fenno-Scandia”) that accompanies this memoir was originally issued in Bulletin No. 23 of the Commission geologique de Finlande. Photographs are given of critical rock-specimens, such as the conglomerates that mark unconformities between the Archæan systems in Finland, and the early pre-Cambrian (Bottnian) banded sediment of the shores of Näsijärvi. This rock indicates seasonal stratification, strangely like that of the adjacent Glacial clays of Pleistocene age.
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C., G. The Oldest European Sediments . Nature 79, 266 (1908). https://doi.org/10.1038/079266a0
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DOI: https://doi.org/10.1038/079266a0