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Articles | Volume 17, issue 11
Articles | Volume 17, issue 11
https://doi.org/10.5194/se-17-1219-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-1219-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 11
Research article
 | 
02 Nov 2026
Research article |  | 02 Nov 2026

The role of brittle shear zones and the associated fractures in the formation and characteristics of bedrock surface depressions in crystalline bedrock (Turku, southwestern Finland)

Eemi Ruuska, Pietari Skyttä, Kati Marjukka Ahlqvist, Nicklas Nordbäck, Pelayo Barron, and Kaisa Nikkilä

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Short summary
The elongated depressions in the bedrock are spatially coincident with major structural features of the bedrock. These depressions are covered by a sediment overburden, which prevents direct observation of the underlying structural features and necessitates multi-scale analyses of bedrock structures. These analyses show that although elongation is governed by brittle shear zones, the morphology of the bedrock surface within the depressions is controlled by fractures associated with these zones.
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