Articles | Volume 16, issue 11
https://doi.org/10.5194/se-16-1437-2025
© Author(s) 2025. This work is distributed under
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the Creative Commons Attribution 4.0 License.
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https://doi.org/10.5194/se-16-1437-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
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20 Nov 2025
Research article | Highlight paper |
| 20 Nov 2025
| 20 Nov 2025
Uncovering the deep structure of the Koillismaa Layered Intrusion Complex, Finland using a novel 3D seismic survey
Michał Malinowski
CORRESPONDING AUTHOR
Geological Survey of Finland, Vuorimiehentie 5, 02151 Espoo, Finland
Institute of Geophysics, Polish Academy of Sciences Warsaw, Księcia Janusza 64, 01-452 Warsaw, Poland
Tuomo Karinen
Geological Survey of Finland, Vuorimiehentie 5, 02151 Espoo, Finland
Uula Autio
Geological Survey of Finland, Vuorimiehentie 5, 02151 Espoo, Finland
Suvi Heinonen
Institute of Seismology, University of Helsinki, P.O. BOX 68 (Pietari Kalmin katu 5), Helsinki, Finland
Brij Singh
Institute of Geophysics, Polish Academy of Sciences Warsaw, Księcia Janusza 64, 01-452 Warsaw, Poland
Andrzej Górszczyk
Institute of Geophysics, Polish Academy of Sciences Warsaw, Księcia Janusza 64, 01-452 Warsaw, Poland
Łukasz Sito
Geopartner Geofizyka Sp. z o.o., Skośna 39B, 30-383, Kraków, Poland
A full list of authors appears at the end of the paper.
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Executive editor
The presented seismic exploration experiment exhibits the potential of using a low-cost survey design for 3-D imaging of the subsurface. In this case study, a deep layered intrusion and its feeder system are investigated. The new insights into the tectonic evolution and mineralization potential of the studied region in Finland evidences a complex, layered system rather than a simple magma channel. Furthermore, a major fault is identified that may influence how the development of mineral deposits in the area are interpreted. In summary, this work offers new tools and insights for exploring valuable underground resources in hard rock environments. This is a timely scientific result not only for Europe but has influence on people's sustainable living worldwide.
The presented seismic exploration experiment exhibits the potential of using a low-cost survey...
Short summary
We acquired and processed novel 3D seismic data to reveal the hidden structure of a deep rock formation in northeastern Finland. This study uncovered a complex, layered system rather than a simple magma channel, and identified a major fault that may influence mineral deposits. Our findings offer new tools and insights for exploring valuable underground resources in hard rock environments.
We acquired and processed novel 3D seismic data to reveal the hidden structure of a deep rock...
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