manicouagan

Karikkoselkä

 Crater Name  Location  Latitude  Longitude  Diameter (km)  Age (Ma)  Exposed  Drilled  Targed Rock**  Bolid Type***
 Karikkoselkä  Finland  N 62° 13'  E 25° 15'  1.5  ~230  Y  -  C  -
error
error
error

1. Ground photo View from the south of the structure direction N to the center., Photo Sept.2001 Submitted by Harald Stehlik

2. Photograph - North shore of lake by Jarmo Moilanen

3. Map by Jarmo Moilanen

References

Abela A., Plado J., Pesonen L. J., Lehinen M., The Impact Cratering Record of Fennoscandia - A Close Look at the Database, 2002.
Grieve R., Letter to Wagner J., 1998.
Lehtinen, M., Pesonen, L.J., Puranen, R. and Deutsch,A., Karikkoselkä - a new impact structure in Finland (abstract). Lunar and Planetary Science, v. XXVII, pp. 739-740. 1996.
Pesonen, L. J., Elo, S., Puranen, R., Jokinen, T., Lehtinen, M. , Kivekäs, L. and Suppala,I., The Karikkoselkä impact structure, central Finland: New geophysical and petrographic results (abstract). Large Meteorite Impacts and Planetary Evolution,. 1997.
* pre-1977 K-Ar, Ar-Ar and Rb-Sr ages recalculated using the decay constants of Steiger and Jager (1977) Ages in millions of years (Ma) before present.

** Abbreviations: C - Crystalline Target; C-Ms - Metasedimentary Target; M - Mixed Target (i.e.sedimentary strata overlying crystalline basement); S - sedimentary target (i.e. no crystalline rocks affected by the impact event). From Osinski. G. R., Spray J. G., and Grieve R. A. F. 2007. Impact melting in sedimentary target rocks: A synthesis. In The Sedimentary Record of Meteorite Impacts, Geological Society of America Special Paper. Editors: Evans K. Horton W., King D., Morrow J., and Warme J. Geological Society of America: Boulder, in press.

***From Koeberl,C. Identification of meteoritic components in impactites. 1998, Koeberl, C. The Geochemistry and Cosmochemistry of Impacts. 2007 and PASSC Files. (IAB, IIIAB, IIIB, IIID - Iron Meteorite)