Suvasvesi South - Hypervelocity Impact Crater

Alternate Names
Local Language
Coordinates 62° 35' 42" N; 28° 13' 7" E
Notes
  1. Possibly a doublet to Suvasvesi North. Based on argon dating the Suvasvesi craters are false doublets (Schmieder et al., 2016).
Country Finland
Region Northern Savonia
Date Confirmed 2002
Notes
  1. Confirmed by the presence of shatter cones (Lehtinen et al., 2002).
Buried? No
Notes
  1. Occupied by Lake Haapaselka (Schmieder et al., 2016).
Drilled? No
Target Type Crystalline
Notes
  1. Paleoproterozoic crystalline rocks, mainly biotite schists, granites, and minor granodiorite (Schmieder et al., 2016).
Sub-Type Granitoid, Schist
Apparent Crater Diameter (km) 3.8 km
Age (Ma) 710 - 1880
Notes :
  1. 40Ar/39Ar of melt rock provides an age range of approximately 710 to 1880 Ma (Schmieder et al., 2016) (Schwarz et al., 2016).

Method :
  1. 40Ar/39Ar
Impactor Type Unknown

Advanced Data Fields

Notes

Erosion
6
  1. Thought to be deeply eroded (Schmieder et al., 2016).
Final Rim Diameter
Unknown
Apparent Rim Diameter
3.8 km
  1. Diameter of 3.8 km (Ohman et al., 2003).
Rim Reliability Index
1
Crater Morphology
Complex
Central Uplift Diameter
km
Central Uplift Height
Unknown
Uplift Reliability Index
Structural Uplift
Unknown
Thickness of Seds
Target Age
Precambrian
Marine
No
Impactor Type
Other Shock Metamorphism
No
Shatter Cones
Yes
  1. Shatter cone bearing crystalline bedrock (Schmieder et al., 2016). Well-developed shatter cones were found in 2001 in medium-grained mica gneiss and gneissose granodiorite (Lehtinen et al., 2002). Shatter cones, 10 to 20 cm in size, were found in mica schist and granitoid boulders along the NW coast of Haapasaari island and at the Lusikkaniemi area (Donadini et al., 2006). Quartz grains with PDFs were observed within shatter cone samples (Donadini et al., 2006).
Planar Fractures
No
Planar Deformation Features
Yes
  1. (Ohman et al., 2003)
Diaplectic Glass
No
Coesite
No
Stisovite
No
Crater Fill
M
  1. Mostly glacially transported float. They are clast-rich and clast-poor melt rocks, and have a glassy matrix (Schmieder et al., 2016).
Proximal Ejecta
Distal Ejecta
Dykes
Volume of Melt
Depth of Melting

References

Spot a missing reference? Submit Reference

S C Werner, J Plado, L J Pesonen, M Kuulusa, G J Consolmagno (2001) The two Suvasvesi lakes in central Finland; a possible doublet impact structure, Meteoritics & Planetary Science 36(9, Suppl.), p. 223-224, Meteoritical Society, Fayetteville, AR, pdf

M Lehtinen, L J Pesonen, H Stehlik, M Kuulusa (2002) The Suvasvesi south structure, central Finland; new evidences for impact, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 33, p. Abstract 1188, Lunar and Planetary Science Conference, Houston, TX

T Öhman, D D Badjukov, J Raitala, T L Petrova, H Stehlik (2003) Impactites of the Paasselka and Suvasvesi South craters, Finland, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 34, p. 1571, Lunar and Planetary Science Conference, Houston, TX, pdf

L J Pesonen, F Donadini, J Salminen, M Lehtinen, B O Dressler (2003) The Suvasvesi south structure, central Finland; further evidences of impact, Large Meteorite Impacts 1167, p. Abstract 4074, Lunar and Planetary Institute, Houston, TX, pdf

F Donadini, J Plado, S C Werner, J Salminen, L J Pesonen, M Lehtinen (2006) New evidence for impact from the Suvasvesi South Structure, central east Finland, 10th workshop of the ESF IMPACT Programme on Biological processes associated with impact events, Charles S Cockell, Christian Koeberl, Iain Gilmour, Christian Koeberl (ed.), Springer, Berlin, url

E Buchner, M Schmieder, W H Schwarz, M Trieloff, J Moilanen, T Öhman, H Stehlik (2009) A Proterozoic (super 40) Ar/ (super 39) Ar age for the Suvasvesi south structure (Finland), Meteoritics & Planetary Science 44, SUPPL., p. Abstract 5076, Meteoritical Society, Fayetteville, AR, pdf

S Staffieri, A Coletta, M L Battagliere, M Virelli (2019) Suvasvesi N and S, Finland, Encyclopedic Atlas of Terrestrial Impact Craters, p. 429-430, Springer, Cham, url, doi:https://doi.org/10.1007/978-3-030-05451-9_116