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Name

CLEARWATER LAKE WEST

StatusConfirmed
Country Canada
CoordinatesLat. N 5613' Long.W 7430'
Diameter km 32.0
Age Ma or date 286.0
Synonyms West Clearwater, Lac l'Eau-Claire
Remarks Complex impact crater with a clear central ring. This was long time concidered as a win crater with a smaller Clearwater Lake East. However, recently submitted article found out that these two great craters are not from the same impact event (Schmieder et.al. 2014b). There is millions of years between them. Chondrite projectile. New more precise age is from in press article by (Schmieder et.al. 2014).
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References
Beals 1956 Beals C.S. et al., Journ. Roy. Astron. Soc. Canada, Vol.50 (1956)
CoM 1985 Graham, Bevan and Hutchison, ''Catalogue of Meteorites'', 4th Edition, (1985).
Dence 1965 Dence M.R. at al., Journ. Roy. Astron. Soc. Canada, vol.59 (1965)
Grieve 1988 Grieve R.A.F. et al, "Astronaut's Guide to Terrestrial Impact Craters", NASA Space Shuttle Earth Observation Project, LPI Technical Report Number 88-03, Lunar and Planetary Institute (March 1988)
Hodge 1994 Hodge, Paul W., ''Meteorite craters and impact structures of the Earth'', book, 122 pp, Cambridge University Press (1994)
Schmieder et.al. 2014b Martin Schmieder M., Trieloff M., Schwarz W.H., Buchner E. and Jourdan F., Supportive comment on: "Morphology and population of binary asteroid impact craters", by K. Miljkovic, G.S. Collins, S. Mannick and P.A. Bland [Earth Planet. Sci. Lett. 363 (2013) 121-132] - An updated assessment, Earth and Planetary Science Letters 405, 281-284 (2014)
Simonds 1977 Simonds C.H., Phinney W.C. and Warner J.L., "Effect of Water on Cratering: A Review of Craters and Impactities on the Earth, Moon and Mars", LSC VIII abstracts p.874-876 (1977)
Use of any material without permission is forbidden. Jarmo Moilanen - 2009-2012
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