Rare forms of meltwater erosion on bedrock: polished flutes in the Åland Sea area, Sweden-Finland

Rare forms of meltwater erosion on bedrock: polished flutes in the Åland Sea area, Sweden-Finland

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Strömberg, Bo
Rare forms of meltwater erosion on bedrock: polished flutes in the Åland Sea area, Sweden-Finland
Finnish Academy of Science and Letters
Annales Academiae Scientiarum Fennicae. Geologica-Geographica 169
Sastamala 2010, 39 pp.

Details

Narrow, polished flutes have been formed on bedrock surfaces at a number of localities on the south-western and north-eastern sides of the Åland Sea. These were eroded by subglacial, sediment-charged meltwater. The fluted surfaces are polished, in sharp contrast to the surrounding, coarser bedrock surfaces with glacial striae. The glacial striae have been rubbed off from the fluted surfaces at most sites and replaced by comparatively deep and narrow erosion marks.

Additional Information

ISBN 978-951-41-1059-7
ISSN 1239-632X