Name | Diameter [kilometres] | Age [Million years] | Geographical location | Coordinates |
Lockne | 13.5 - 24 km | ~455 Ma [Late Ordovician] | Sweden, Central Sweden | N63º 00', E14º 49' |
East Clearwater Lake | ~26 km | ~470 Ma [Early Ordovician] | Canada, Quebec | N56º 05', W74º 07' |
Lumparn | 8 - 9 km | 440 - 460 Ma | Finland, Åland | N60º 09', E20º 08' |
Presqu´ile | 24 km [12 km] | <500 Ma | Canada, Quebec | N49º 43', W74º 48' |
Glover Bluff | 10 km | <500 Ma | USA, Wisconsin | N43º 58', W89º 32' |
Lawn Hill | 20 km | >540 Ma | Australia, Queensland | S18º 40', E138º 39' |
Strangways | 26 km | >540 Ma | Australia, Northern Territory | S15º 12', E133º 35' |
Reference(s):
- Grieve, R. A. F., 2006: Impact structures in Canada.
–Geologican Association of Canada, St. John's, 2006, pp. x-210 - Hodge, P., 1994: Meteorite craters and impact structures of the Earth.
–Cambridge University Press, London, 1994, pp. 1-124 - Schmieder, M., Schwarz, W. H., Trieloff, M., Tohver, E., Buchner, E., Hopp, J. & Osinski, G. R., 2015: New 40Ar/39Ar dating of the Clearwater Lake impact structures (Québec, Canada) – Not the binary asteroid impact it seems?
–Geochimica et Cosmochimica Acta: Vol. 148, pp. 304-324 [doi: 10.1016/j.gca.2014.09.037] - Sturkell, E. F. F., 1998: Resurge morphology of the marine Lockne impact crater, Jämtland, central Sweden.
–Geological Magazine: Vol. 135, #1, pp. 121-127
Lehtinen, M., 2001-2007: Personal correspondence.