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Name

CLEARWATER LAKE EAST

StatusConfirmed
Country Canada
CoordinatesLat. N 5605' Long.W 7407'
Diameter km 22.0
Age Ma or date 460-470
Synonyms East Clearwater, Lac l'Eau-Claire
Remarks This was long time concidered as a win crater with a larger Clearwater Lake West. 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. Chondritic projectile.

New age is from in press article by (Schmieder et.al. 2014). Earlier age listed here was 290.0 20.0 Ma.
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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)
Use of any material without permission is forbidden. Jarmo Moilanen - 2009-2014
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