Karikkoselkä
Sign in to saveKarikkoselkä is a lake formed in an impact crater in Petäjävesi, Finland. Karikkoselkä is located in Central Finland approximately 30 km east from the centre of Keurusselkä, a much older and larger impact crater. Most lakes in the region are elongated in northwest–southeast direction due to glaciation, but Karikkoselkä is strikingly round.
Key facts
- Lake.name
- Karikkoselkä
- Lake.image
- Karikkoselka-WorldWind.jpg
- Lake.caption
- Landsat 7 image of Karikkoselkä.
- Lake.image_bathymetry
- Karikkoselkä (kraatteri).png
- Lake.caption_bathymetry
- The lake with the impact structure area in grey.
- Lake.location
- Petäjävesi
- Lake.type
- Impact crater lake
- Lake.inflow
- Könkköjoki
- Lake.outflow
- Autionsalmi
- Lake.basin_countries
- Finland
- Lake.pushpin_map
- Finland
via Wikipedia infobox
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Encyclopedic overview
3 sectionsContents
- See also
- References
- External links
Karikkoselkä is a lake formed in an impact crater in Petäjävesi, Finland. Karikkoselkä is located in Central Finland approximately 30 km east from the centre of Keurusselkä, a much older and larger impact crater. Most lakes in the region are elongated in northwest–southeast direction due to glaciation, but Karikkoselkä is strikingly round.
Many shatter cones, rock formations that form under the extreme pressures of impact, have been found around the lake. Further evidence comes from aeromagnetic maps, which show a clear magnetic anomaly in the impact crater area. In addition, samples collected from deep drillings into the lake bottom confirm the impact origin of the structure.
Excerpted from Wikipedia’s “Karikkoselkä” article, available under the CC BY-SA 4.0 licence.
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