The world seen through a pothole
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The world seen through a pothole

by Mira Tammelin, University of Turku, Turku, Finland

The photo is taken from one of the smaller potholes in the Askola pothole area in Southern Finland. The potholes formed in the bedrock during the retreat of the glacier approximately 10 000 years ago.

Featured on GeoLog, the official blog of the European Geosciences Union