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| Name | KARIKKOSELKÄ |
| Status | Proven |
| Country | Finland |
| Coordinates | Lat. N 62°13' Long.E 25°14' |
| Diameter km | 1.4 |
| Age Ma or date | 245.0 ±15.0 |
| Synonyms | Lake Karikkoselkä |
| Remarks | Shatter cones in coarse granite and lithic breccias can been found from shore of this small round lake. Shatter cones also occurs in situ. PDFs in quartz has been found in drill core samples. Present day diameter of the crater is between 1.2 to 1.5km but according to shatter cone occurences outside that suggest that original diameter may have been at least twice as much (about 3-4 km). Age is from Uutela 2001 but it is compination of that study and earlier paleomagnetic studies. Maximum age from microfossil dating is 458-449 Ma and other than 230-260 Ma paleomagnetic ages where older than that. |
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| References | ||
| Lehtinen 1996 | Lehtinen M., Pesonen M.J., Puranen R. and Deutsch A., ''Karikkoselkä - A new impact structure in Finland'', XXVII LPSC, Abstract 1370, (1996) | |
| Uutela 2001 | Uutela A., "Proterozoic and Early Paleozoic Microfossils in the Karikkoselkä Impact Crater, Central Finland", Bulletin of the Geological Society of Finland, Vol 73 (1/2) (2001) | |
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